2024-11-18

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over SanYa, from 0:00 November 19 to 15:00 November 30, 2024(UTC).

2024-11-05

According to the letter of the Department of observation on Approving the outage maintenance of the operational system of the NSMC, and with the approval of the Department of Integrated Observations of the CMA, NSMC will carry out the outage maintenance of the ground application system from 5:00 to 13:00 on November 7, 2024 (UTC).

During the maintenance period, the processing and distribution of FY-2G/H, FY-3C/D/E/F/G and FY-4A/B real-time products are affected. After the business system is restored, the relevant work will be supplemented.

2024-10-22

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 110⁰-130⁰E、5⁰-25⁰N, from 0:00 October 23 to 0:00 October 28, 2024(UTC).

2024-10-18

The Xi'an Satellite Control Center will exercise an attitude control to FY-2G from 7:30 to 8:30 October 18, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00 and 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-10-15

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:30 to 8:30 October 17, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 7:30 and 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-10-15

The Xi'an Satellite Control Center will exercise an west-east orbital control to FY- 4B from 8:16 to 8:44 October 17, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-10-12

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Ningbo, from 0:00 October 14 to 0:00 October 16, 2024(UTC).

2024-09-27

The Xi'an Satellite Control Center will exercise an west-east orbital control to FY- 4B from 8:16 to 8:44 September 30, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-09-27

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Beijing, from 4:00 September 27 to 12:00 September 30, 2024(UTC).

2024-09-27

According to orbit predictions, 

FY-2G will enter the sun transit outage period from September 26 to September 29(UTC). 

FY-2H will enter the sun transit outage period from October 3 to October 6(UTC). 

The following transmissions will be affected as the result: 

FY-2G transmissions 5:00 (UTC) will be cancelled during the sun transit outage period. 

FY-2H transmissions 7:00 (UTC) will be cancelled during the sun transit outage period.

2024-09-12

The Xi'an Satellite Control Center will exercise an north-south orbital control to FY- 4B from 7:30 to 14:00 September 18, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 7:30 to 14:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-09-04

On user requirement for service, FY-4B will have an intensified observation every 15 minutes over 105-122E, 10-25N, from 00:00 September 5 to 04:00 September 9, 2024(UTC).

2024-09-03

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 7:30 to 8:30 September 5, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 7:30 and 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-09-03

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 105-122E, 10-25N, from 02:00 September 3 to 16:00 September 9, 2024(UTC).

2024-09-03

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4B from 8:16 to 8:44 September 5, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-08-29

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 80-100E, 27-47N, from 07:00 August 29 to 14:00 September 4, 2024(UTC).

2024-08-26

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:30 to 8:30 August 27, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-08-20

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over TianJin, from 01:52 August 20, 2024(UTC).

2024-08-17

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 80-100E, 27-47N, from 00:00 August 18 to 14:00 August 23, 2024(UTC).

2024-08-15

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4B from 8:16 to 8:44 August 16, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-08-09

According to orbit predictions, FY-2G and FY-2H will enter the equinox season (autumn 2024) one by one. The following transmissions will be affected as the result: 

FY-2G transmissions 01:00, 01:30 and 02:00(BJT) will be cancelled from August 13 to October 14. 

FY-2H transmissions 01:30, 02:00, 02:30, 03:00 and 03:30(BJT) will be cancelled from August 20 to October 19.

2024-08-07

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over KuErLe, from 00:00 August 7 to 14:00 August 7, 2024(UTC).

2024-08-07

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over QinHuangDao, from 00:00 August 8 to 15:00 August 15, 2024(UTC).

2024-08-05

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over GuiYang, from 07:30 August 5 to 12:00 August 6, 2024(UTC).

2024-07-15

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 95-128E、25-45N, from 03:00 July 16 to 16:00 July 18, 2024(UTC).

2024-07-11

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 100-130E、25-45N, from 04:00 July 12 to 16:00 July 18, 2024(UTC).

2024-07-08

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:30 to 8:30 July 11, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-07-07

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4B from 8:16 to 8:44 July 9, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-07-03

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 1060-1260E、240-440N, from 15:00 July 4 to 00:00 July 9, 2024(UTC).

2024-06-22

On user requirement for service, FY-4B will have an intensified observation every 15 minutes over 105-125E、20-40N, from 12:00 June 22 to 12:00 June 30, 2024(UTC).

2024-06-21

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4B from 8:16 to 8:44 June 24, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-06-21

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 105-125E、26-40N, from 2:00 June 21 to 16:00 June 23, 2024(UTC).

2024-06-06

On user requirement for service, FY-4B will have an intensified observation every 15 minutes over GuangZhou, from 04:00 June 6 to 15:00 August 31, 2024(UTC).

2024-06-05

FY-4A closed its onboard compensation function on May 23, 2024. After processing the data by the ground system, data distribution has now resumed.

2024-05-31

On user requirement for service, FY-4B will have an intensified observation every 15 minutes over GuangZhou, from 04:00 May 31 to 15:00 June 3, 2024(UTC).

2024-05-31

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4A from 8:16 to 8:44 June 3, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-05-22

According to the notice of the General Observation Department on the issuance of the degraded operation plan for the FY-4A (QSH [2024] No. 85), the orbital inclination of the FY-4A has reached the threshold value, and the on-board compensation function is scheduled to be turned off on May 23, 2024, and the ground system will suspend data distribution. A separate announcement will be made when the data is ready for distribution.

2024-05-13

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4B from 8:16 to 8:44 May 15, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-05-13

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:30 to 8:30 May 16, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-05-08

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4A from 8:16 to 8:44 May 10, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-05-08

According to the letter of the Department of observation on Approving the outage maintenance of the operational system of the NSMC, and with the approval of the Department of Integrated Observations of the CMA, NSMC will carry out the outage maintenance of the ground application system from 5:00 to 13:00 on May 9, 2023 (UTC).

During the maintenance period, the processing and distribution of FY-2G/H, FY-3C/D/E/G and FY-4A/B real-time products are affected. After the business system is restored, the relevant work will be supplemented.

2024-04-28

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4B from 8:16 to 8:44 April 30, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-04-21

Due to abnormal operational conditions, the C-band transmitter of FY-3E WindRAD has been temporary shutdown, started from April 22, 2024. Related C-band products and services have also been suspended.

2024-04-17

On user requirement for service, FY-4B GIIRS will have an intensified observation every 15 minutes over 103-123E、16-36N, from 12:00 April 18 to 00:00 April 27, 2024(BJT).

2024-03-26

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4B from 8:16 to 8:44 March 28, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-03-26

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Sri Lanka, from 12:00 March 26 to 23:00 March 27, 2024(BJT).

2024-03-19

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 8:30 to 9:30 March 21, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 8:30 and 09:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-03-18

The Xi'an Satellite Control Center will exercise an north-south orbital control to FY- 4B from 9:30 to 14:00 March 20, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 9:30 to 14:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-03-08

FY-2G/H will be orbiting within the  moon shadow on March 10, 2024 (BJT). According to the 'FY-2 Satellite Operation and Safety Management 2024', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2G satellite at 15:00 on March 10 (BJT),  FY-2H satellite at 15:30, 16:00 and 16:30 on March 10 (BTC)  will not be available.

2024-03-06

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4B from 8:16 to 8:44 March 7, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-03-04

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Beijing, from 10:00 March 5 to 20:00  March 10, 2024(BJT).

2024-02-04

According to orbit predictions, FY-2G and FY-2H will enter the equinox season (spring 2024) one by one. The following transmissions will be affected as the result: 

FY-2G transmissions 01:00, 01:30 and 02:00(BJT) will be cancelled from February 12 to April 9. 

FY-2H transmissions 02:00, 02:30, 03:00 and 03:30(BJT) will be cancelled from February 18 to April 16.

2024-01-31

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:30 to 8:30 February 7, 2024(UTC). 

During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00(UTC). Under a 

normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please 

forgive the inconvenience caused.

2024-01-31

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4A from 8:16 to 8:44 February 2, 2024

(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4A from 8:16 to 

8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the 

orbital control. Please forgive the inconvenience caused.

2024-01-30

FY-4B will drift from 133°E to 105°E, replacing FY-4A as the primary operational satellite. The transition period starts from February 1^st through March 5^th. FY-4B data collection will be disabled during its relocation and be operational afterwards at 0:00 (UTC) March 5^th. At the same time, FY-4A will drift to 86.5°E as backup and stop data service.

2024-01-23

FY-4A satellite has entered the operation phase surpassing its design lifespan. To ensure the scientific use of the instruments onboard, the imagers on FY-4A will be temporarily suspended between 0:30-4:30 (CST) from January 23, 2024 to May 23, 2024. During this period, the scanning mechanism will be directed towards the black body position, while resume normal observations at other times.

2024-01-22

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 105.0E、28.0N, from 18:00 January 22 to 20:00 January 27, 2024(BJT).

2024-01-13

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 December 15, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-01-05

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4A from 8:16 to 8:44 January 8, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2024-01-05

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4B from 8:16 to 8:44 January 9, 2024(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-12-10

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 114.1E、18.1N, from 12:00 December 10 to 08:00 December 17, 2023(BJT).

2023-12-06

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY- 4A from 8:16 to 8:44 December 8, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-11-29

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4B from 8:16 to 8:44 December 1, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-11-21

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 150-170E、-20-0N, from 16:30 November 21 to 18:00 December 2, 2023(BJT).

2023-11-15

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 08:00 to 09:00 November 20, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 08:00 and 08:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-11-14

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 November 16, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-11-10

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Nanning, from 00:00 November 11 to 24:00 November 15, 2023(BTC).

2023-11-10

FY-2G/H will be orbiting within the  moon shadow on November 13, 2023 (BJT). According to the 'FY-2 Satellite Operation and Safety Management 2023', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2G satellite at 06:00 and 07:00 on November 13 (BJT),  FY-2H satellite at 06:30, 07:00 and 07:30 on November 13 (BTC)  will not be available.

2023-11-02

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 150-170E、-20-0N, from 00:00 November 3 to 08:00 November 4, 2023(BJT).

2023-11-01

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Wuhan, from 08:00 November 4 to 24:00 November 10, 2023(BJT).

2023-10-27

The Xi'an Satellite Control Center will exercise an south-north orbital control to FY-2H from October 31 to November 3, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H October 31 to November 3(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-10-25

According to the letter of the Department of observation on Approving the outage maintenance of the operational system of the NSMC, and with the approval of the Department of Integrated Observations of the CMA, NSMC will carry out the outage maintenance of the ground application system from 5:00 to 13:00 on October 26, 2023 (UTC).

During the maintenance period, the processing and distribution of FY-3F/G and FY-4A/B real-time products are affected. After the business system is restored, the relevant work will be supplemented.

2023-10-24

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 150-170E、-20-0N, from 19:00 October 24 to 12:00 October 26, 2023(BTC).

2023-10-23

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Hangzhou, from 21:00 October 26 to 24:00 October 28, 2023(BJT).

2023-10-20

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4B from 1:16 to 1:44 October 24, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4B from 1:16 to 1:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-10-18

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 14-35N、105-125E, from 17:00 October 18 to 12:00 October 21, 2023(BJT).

2023-10-17

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 October 20, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-10-17

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 1:16 to 1:44 October 19, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 1:16 to 1:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-10-16

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Hangzhou, from 08:00 October 18 to 24:00 October 22, 2023(BJT).

2023-10-13

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 8:00 to 9:00 October 17, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 8:00 and 8:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-10-07

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 104-124E、35-15N, from 12:00 October 12 to 12:00 October 12, 2023(BJT).

2023-09-22

The Xi'an Satellite Control Center will exercise an south-north orbital control to FY-4B from 7:00 to 14:10 September 25, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4B from 7:00 to 14:10(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-09-22

The Xi'an Satellite Control Center will exercise an south-north orbital control to FY-4A from 9:00 to 16:00 September 26, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 9:00 to 16:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-09-18

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 111-131E、27-52N, from 10:00 September 18 to 08:00 September 19, 2023(BJT).

2023-09-13

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Hangzhou, from 08:00 September 15 to 18:00 September 16, 2023(BTC).

2023-09-13

FY-2G/H will be orbiting within the  moon shadow on September 15, 2023 (BJT). According to the 'FY-2 Satellite Operation and Safety Management 2023', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2G satellite at 20:00 and 21:00 on September 15 (BJT),  FY-2H satellite at 20:00, 20:30, 21:00, 21:30, 22:00 and 22:30 on September 15 (BJT)  will not be available.

2023-09-05

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Hangzhou, from 08:00 September 7 to 23:00 September 9, 2023(BJT).

2023-09-04

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 110-130E、12-32N, from 00:00 September 4 to 23:00 September 6, 2023(BJT).

2023-08-30

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 110-130E、10-30N, from 14:00 August 30 to 14:00 September 2, 2023(BJT).

2023-08-22

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 August 24, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-08-21

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Hangzhou, from 08:00 to 12:00 August 22, 2023(BJT).

2023-08-14

According to orbit predictions, FY-2G and FY-2H will enter the equinox season (autumn 2023) one by one. The following transmissions will be affected as the result: 

FY-2G transmissions 01:00, 01:30 and 02:00(BJT) will be cancelled from August 17 to October 16. 

FY-2H transmissions 01:30, 02:00, 02:30, 03:00 and 03:30(BJT) will be cancelled from August 19 to October 18.

2023-08-09

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 120-140E、25-45N, from 12:00 August 9 to 12:00 August 13, 2023(BTC).

2023-07-24

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Chengdu, from 18:00 July 17 to 20:00 August 20, 2023(BTC).

2023-07-14

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 July 18, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-07-14

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 105-125E、5-25N, from 00:00 July 15 to 20:00 July 21, 2023(BTC).

2023-07-10

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 8:30 to 9:30 July 12, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-07-07

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4B from 8:16 to 8:44 July 10, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-07-06

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 117.12E、40N, from 18:00 July 6 to 20:00 July 9, 2023(BTC).

2023-06-26

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 113.4E、34.46N, from 00:00 June 27 to 23:00 June 28, 2023(BTC).

2023-06-17

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 114E、30.6N, from 12:00 June 17 to 14:00 June 20, 2023(BTC).

2023-06-14

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 June 16, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-06-14

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 120.2E、30.3N, from 14:00 June 14 to 10:00 June 15, 2023(BTC).

2023-06-14

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 105.18E、37.52N, from 18:00 to 23:00 June 16；from 18:00 to 23:00 June 24, 2023(BTC).

2023-06-06

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 112E、19N, from 17:00 June 6 to 20:00 June 7, 2023(BTC).

2023-05-29

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 118E-138E、14N-34N, from 16:00 May 29 to 20:00 June 3, 2023(BTC).

2023-05-19

FY-2G/H will be orbiting within the  moon shadow on May 20, 2023 (BTC). According to the 'FY-2 Satellite Operation and Safety Management 2023', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2G satellite at 01:00 and 01:30 on May 20 (BTC),  FY-2H satellite at 01:30, 2:00 and 02:30 on May 20 (BTC)  will not be available.

2023-05-16

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over 100E-130E、35N-50N, from 11:00 May 16 to 03:00 May 17, 2023(BTC).

2023-05-12

On user requirement for service, FY-4B will have an intensified observation every 1 minutes over Xi'an and Yangling, from 00:00 May 15 to 24:00 May 21, 2023(BTC).

2023-05-10

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 May 12, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-05-08

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4B from 8:16 to 8:44 May 10, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-04-20

On user requirement for service, FY-4B will have an intensified observation over 120.9°E - 23.8°N, from 12:00 April 20 to 12:00 April 24, 2023(UTC).

2023-04-19

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 0:00 to 1:00 April 21, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 0:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-03-31

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 April 3, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-03-27

According to the on orbit operation of FY-3D, it is necessary to maintain the HIRAS. Our center is scheduled to maintain the HIRAS of FY-3D from March 24 to April 7, 2023 (BTC), The data receiving, processing and external services  have also stopped.

2023-03-27

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 8:30 to 9:30 March 29, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 8:30 and 9:00 (UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-03-17

The Xi'an Satellite Control Center will exercise an north-south orbital control to FY-4B from 7:30 to 12:00 March 21, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4B from 7:30 to 12:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-03-16

The Xi'an Satellite Control Center will exercise an north-south orbital control to FY-4A from 9:30 to 14:00 March 20, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 9:30 to 14:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-02-22

According to orbit predictions, FY-2G/H will enter the sun transit outage period from February 26 to March 4, 2023(UTC). The following transmissions will be affected as the result: 

FY-2G transmissions 5:30 (UTC) will be cancelled from February 26 to February 28, 2023(UTC). 

FY-2H transmissions 7:00 (UTC) will be cancelled from February 27 to March 4, 2023(UTC).               

2023-02-20

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 February 22, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-02-10

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 February 14, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-02-10

According to orbit predictions, FY-2G and FY-2H will enter the equinox season (spring 2023) one by one. The following transmissions will be affected as the result: 

FY-2G transmissions 01:00, 01:30 and 02:00(BTC) will be cancelled from February 13 to April 13. 

FY-2H transmissions 02:00, 02:30, 03:00 and 03:30(BTC) will be cancelled from February 15 to April 15.

2023-01-30

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4B from 8:16 to 8:44 February 2, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2023-01-17

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 January 19, 2023(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-12-27

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 December 29, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-12-27

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4B from 8:16 to 8:44 December 30, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4B from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-12-21

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:00 to 8:00 December 22, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 7:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-12-02

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 1:30 to 2:30 December 5, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 1:30 and 2:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-12-02

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 December 5, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-09-20

The Xi'an Satellite Control Center will exercise an north-south orbital control to FY-4B from 7:30 to 12:00 September 22, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 7:30 to 12:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-09-06

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 1:00 to 2:00 September 8, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 1:00 and 1:30 (UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-09-05

As agreed with the overall satellite, it is scheduled to adjust the start time of FY-4B's regional observation of China from 00:00 to 01:00 September 6, 2022(UTC). After the adjustment, FY-4B and FY-4A will form a joint observation in China with a frequency of one hour.

2022-08-23

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 1:16 to 1:44 August 25, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 1:16 to 1:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-08-17

According to orbit predictions, FY-2G and FY-2H will enter the equinox season (autumn 2022) one by one. The following transmissions will be affected as the result: 

FY-2G transmissions 01:00, 01:30 and 02:00 (BTC) will be cancelled from August 19 to October 18. 

FY-2H transmissions 01:30, 02:00,02:30,03:00 and 03:30 (BTC) will be cancelled from August 21 to October 20.

2022-07-29

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4B from 08:16 to 08:44 August 2nd, 2022 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4B from 08:16 to 08:44 (UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-07-19

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 July 19, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-07-01

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:00 to 8:00 July 04, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 7:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-06-28

In order to ensure the stability of executing the work order of FY-4B AGRI, the code rate of FY-4B satellite telemetry baseband was adjusted from 02:00 to 04:00 June 30, 2022 (UTC). During this  period, the data reception of FY-4B AGRI, GIIRS and GHI was stopped.

2022-06-14

According to the letter of the Department of observation on Approving the outage maintenance of the operational system of the NSMC, and with the approval of the Department of Integrated Observations of the CMA, NSMC will carry out the outage maintenance of the ground application system from 5:00 to 13:00 on June 16, 2022 (UTC).

During the maintenance period, the processing and distribution of FY-2G/H, FY-3C/D and FY-4A real-time products are affected. After the business system is restored, the relevant work will be supplemented.

2022-06-10

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 June 14, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-05-26

FY-2G/H will be orbiting within the  moon shadow on May 30, 2022 (BTC). According to the 'FY-2 Satellite Operation and Safety Management 2022', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2G satellite at 06:00, 7:00 and 07:30 on May 30, 00:00 on May 31 (BTC),  FY-2H satellite at 07:00, 7:30 and 08:00 on May 30, 00:30, 01:00 and 01:30 on May 31 (BTC)  will not be available.

2022-05-16

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 May 19, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-05-09

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 8:30 to 9:30 May 11, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-04-27

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 April 29, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-04-18

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 April 20, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-04-02

Due to the running time of rail is far beyond the design life of FY-2F, the instrument and energy have been unable to support normal business operation and relevant data can be replaced by FY-2 in orbit service satellite. After research and approval by China Meteorological Administration, NSMC is scheduled to stop the external service of FY-2F observations and products on April 1, 2022.

2022-03-18

The Xi'an Satellite Control Center will exercise an north-south orbital control to FY-4A from 9:00 to 14:00 March 22, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 9:00 to 14:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-02-25

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 February 28, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00 (UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-02-25

According to orbit predictions, FY-2G\H will enter the sun transit outage period from February 27 to March 4. 

FY-2G will enter the sun transit outage period from February 27 to March 1.

FY-2H will enter the sun transit outage period from March 2 to March 4.  

The following transmissions will be affected as the result: 

FY-2G transmissions 5:30 (UTC) will be cancelled during the sun transit outage period. 

FY-2H transmissions 7:00 (UTC) will be cancelled during the sun transit outage period. 

2022-02-22

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 February 24, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00 (UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-02-18

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 February 21, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-02-10

According to orbit predictions, FY-2F, FY-2G and FY-2H will enter the equinox season (spring 2022) one by one. The following transmissions will be affected as the result: 

FY-2F transmissions 00:00, 01:00 and 01:30 (BTC) will be cancelled from February 11 to April 11. 

FY-2G transmissions 01:00, 01:30 and 02:00(BTC) will be cancelled from February 16 to April 15. 

FY-2H transmissions 01:30, 02:00, 02:30, 03:00 and 03:30(BTC) will be cancelled from February 18 to April 17.

2022-01-19

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 January 21, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-01-14

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 1:00 to 2:00 January 18, 2022(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 1:00 and 1:30 (UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2022-01-04

2021-12-30
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 December 31, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-12-27
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:00 to 8:00 December 28, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 7:00 (UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-12-03
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 December 7, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-12-03

2021-11-15

2021-11-15

2021-11-11

2021-11-02

2021-10-27

2021-10-18

2021-10-11

2021-09-23

2021-09-22
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 7:00 to 8:00 September 27, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 7:00 and 7:30 (UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-09-18

2021-09-18

2021-09-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:00 to 8:00 September 10, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 7:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-09-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 September 10, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-08-13

2021-08-03

2021-08-03

2021-07-13

2021-07-05
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 July 2, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-06-15

2021-06-09

2021-06-09

2021-05-27

2021-05-06

2021-04-19
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 April 21, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-03-23

2021-03-16
The Xi'an Satellite Control Center will exercise an south-north orbital control to FY-4A from 8:00 to 15:00 March 18, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:00 to 15:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-03-15
According to the on orbit operation of FY-3D, it is necessary to maintain the HIRAS. Our center is scheduled to maintain the HIRAS of FY-3D from March 15 to March 25, 2021 (BTC), The data receiving, processing and external services  have also stopped.

2021-03-15

2021-03-10

2021-03-10
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 March 8, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-02-25
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 8:30 to 9:30 March 3, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-02-25

2021-02-08

2021-02-08
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 9:16 to 9:44 February 9, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 9:16 to 9:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-01-25

2021-01-21

2021-01-18

2021-01-14
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 9:16 to 9:44 January 15, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 9:16 to 9:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2021-01-14
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 7:30 to 8:30 January 13, 2021(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-12-14

2020-12-14

2020-12-08

A Notification on FY2H’s Orbital Control

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 7:00 to 8:00 November 9, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 7:00 and 7:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-11-25

2020-11-25

2020-11-16

2020-11-16

2020-11-16

2020-10-20

2020-10-14
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 0:00 to 1:00 October 14, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 0:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-10-09
According to orbit predictions, FY-2F will enter the sun transit outage period from October 1 to October 3. FY-2G will enter the sun transit outage period from October 1 to October 3. FY-2H will enter the sun transit outage period from October 8 to October 10.  The following transmissions will be affected as the result: FY-2F transmissions 4:00 (UTC) will be cancelled during the sun transit outage period. FY-2G transmissions 5:00 (UTC) will be cancelled during the sun transit outage period. FY-2H transmissions 6:30 (UTC) will be cancelled during the sun transit outage period.

2020-10-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:00 to 9:00 September 22, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-10-09
This is to announce that from 17:30 to 21:30 of Beijing Time on 21 September , FY-4A will be conducting the north-south station keeping and adjust the pointing of the radiation cooling screen. There is no imagery service from AGRI,GIIRS and LMI during this time of hours.

2020-10-09

The calibration coefficients (relative to the prelaunch) of FY-4A/AGRI reflective solar bands (RSB) were updated on 02:00, September 9, 2020(UTC).

                                                                           Ref =Ref_Prelaunch*k

The information of correction coefficients are listed in table 1.

                               National Satellite Meteorological Center

             Contacts: Ling SUN (sunling@cma.gov.cn; 86-10-58994010)

                       Lin CHEN (chenlin@cma.gov.cn; 86-10-68406704)

Table 1 Correction coefficients of FY-4A/AGRI reflective solar bands

2020-10-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:30 to 8:30 August 27, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-10-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 August 20, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A from 8:16 to 8:44(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-10-09
According to orbit predictions, FY-2F, FY-2G and FY-2H will enter the equinox season (autumn 2020) one by one. The following transmissions will be affected as the result: FY-2F transmissions 00:00, 01:00 and 01:30 (BTC) will be cancelled from August 17 to October 16. FY-2G transmissions 01:00, 01:30 and 02:00(BTC) will be cancelled from August 17 to October 16. FY-2H transmissions 01:30, 02:00 and 03:00(BTC) will be cancelled from August 24 to October 23.

2020-08-07
Through the analysis of instrument status and satellite energy, NSMC will start up the GNOS of FY-3C  on August 7, 2020, and resume the related products and services.

2020-08-04
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 7:00 to 8:00 August 6, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 7:00 and 7:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-07-28
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 7:00 to 8:00 July 31, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 7:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-07-20

2020-07-20
FY-2F, FY-2G and FY-2H will be orbiting within the  moon shadow on July 21, 2020 (BTC). According to the 'FY-2 Satellite Operation and Safety Management 2020', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2F satellite at 0:00 and 1:00 (BTC), FY-2G satellite at 1:00 and 1:30 (BTC), FY-2H at 1:30, 2:00 and 2:30(BTC) on that day will not be available.

2020-07-06
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 7:30 to 8:30 July 8, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-07-03

2020-07-03

2020-05-27

2020-05-26

2020-05-20

2020-05-18

2020-04-14
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 7:16 to 7:44  April 17, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-04-14
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 7:30 to 8:30 April 16, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the  inconvenience caused

2020-04-14
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from7:00 to 8:00 April 15, 2020(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 7:00(UTC) and 7:30(UTC) . Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2020-03-26

2020-03-13

2020-03-03
According to orbit predictions, FY-2H will enter the sun transit outage period from March 6 to March 8 during 7:09(UTC) to 7:12(UTC). FY-2H transmissions 7:00 (UTC) will be cancelled during the sun transit outage period.

2020-02-26

2020-02-05
Due to the maintenance of FY-3C satellite platform system, FY-3C data service will be suspended from February  5th 2020. 

2020-01-16

To improve the accuracy of TANSAT measurements, NSMC will perform a TANSAT parameter adjustment. TANSAT data distribution will suspend from January 16, 2020.

2019-12-26
Due to the switchover of FY-3B MWHS scan mode, the data service from this instrument is suspended since UTC time 08:00 24th December 2019. Please note.

2019-12-16

2019-11-12

2019-11-08

To increase the observation quality of the Geostationary Interferometric Infrared Sounder (GIIRS) onboard Fengyun-4A (FY-4A) satellite further, the related calibration algorithms of the Level-1 (L1) data of FY-4A/GIIRS have been significantly updated. The new version L1 data (V3) is scheduled to be broadcast since 12:00 November 7, 2019 (BJT), where the main improvements include:

1. The optimized spectral and radiometric calibration algorithms are utilized;

2. The GIIRS L1 data is temporarily unapodised;

3. The version name of the L1 data file is changed from V2 to V3.

In general, the data format of GIIRS L1 data remains unchanged.

National Satellite Meteorological Center

Contacts: Qiang Guo (guoqiang@cma.gov.cn)

2019-11-04

2019-11-01

Till now, the calibration correction coefficients (relative to the prelaunch) of FY-4A/AGRI reflective solar bands (RSB) have been updated 4 times.

                                                                           Ref =Ref_Prelaunch*k

The information of update times and correction coefficients are listed in table 1.

                               National Satellite Meteorological Center

                  Contacts: Ling SUN (sunling@cma.gov.cn; 010-58994010)

Table 1 Update times and correction coefficients of FY-4A/AGRI reflective solar bands

2019-10-12

2019-10-12

2019-10-09

2019-10-09

2019-09-26
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 7:00 to 8:00 September 27, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 7:00(UTC) and 7:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-09-16
The length of MWRI service aboard FY-3B exceeds the instrument's design life, some of the components could no longer work normally for measurement, therefore, NSMC made the ultimate decision that the MWRI instrument be powered off forever from September 3, 2019, relevant data and product service have also stopped. Given the supply of the extra power on FY-3B, after analyzing the status of ERM-1 instrument, NSMC also made the decision to switch on the instrument of Earth Radiation Measurment-1 and resume the relevant data service.

2019-09-16
To ensure the Tansat data is accurate and scientifically meaningful, the instrument parameters need to be adjusted from time to time. This is to notify of the NSMC operation for the Tansat parameter adjustment in 12-16 September 2019. As the result of this operation there is no service with data acquisition, processing and distribution during this time period.

2019-09-12
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 September 18, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A

2019-08-28

2019-08-26

2019-08-20

2019-08-13
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 7:16 to 7:44 August 16, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. 

2019-08-13

To increase the observation quality of the Geostationary Interferometric Infrared Sounder (GIIRS) onboard Fengyun-4A (FY-4A) satellite, the related calibration algorithms of the Level-1 (L1) data of FY-4A/GIIRS have been updated completely. The new version L1 data (V2) is scheduled to be broadcast since 12:00 August 13, 2019 (BJT), where the main improvements include:

1. The improved spectral and radiometric calibration algorithms are utilized;

2. The apodisation processing upon GIIRS L1 data with Hamming function is adopted;

3. The version name of the L1 data file is changed from V1 to V2.

In general, the data format of GIIRS L1 data remains unchanged.

                                  National Satellite Meteorological Center

                                Contacts: Qiang Guo( guoqiang@cma.gov.cn)

2019-08-07

2019-07-15

2019-07-10

2019-07-07
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 8:00 to 9:00 July 8, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 8:00(UTC) and 8:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-07-02
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:00 to 9:00 July 5, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G.

2019-07-02
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 9:16 to 9:44 June 14, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-05-16
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 9:16 to 9:44 May 16, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-05-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 8:00 to 9:00 May 9, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 8:00 and 8:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-05-07
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:00 to 9:00 May 8, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-04-16
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 8:30 to 9:30 April 18, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-04-16
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 9:16 to 9:44 April 15, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-03-20

2019-03-20
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 9:16 to 9:44 March 19, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-03-15

Following the Plan for Geo-satellite Operation and Safety Management(2019）FY-4A will be conducting north-south orbital control and re-directing the radiation cooler 17:30-23:00 (Beijing Time: UTC+8) on 18 March. AGRI, GIIRS and LMI stop working during this time. Hence this notice.

2019-03-01

2019-02-21
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:00 to 9:00 February 22, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-01-17
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2H from 1:00 to 2:00 January 18, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2H at 1:00 and 1:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-01-14
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:00 to 9:00 January 15, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2019-01-10

This is to inform that FY-2H satellite (79E) and the ground service will be put into  operational production from 11 Jan 2019. Users need to turn antenna toward 79E for the DB transmissions. FY-2H data will also be made available to CMACast users on the CMACast system and to Internet users on the FENGYUN Remote Sensing Data Service at website (http://satellite.nsmc.org.cn/portalsite/default.aspx).

The FY-2E satellite at 86.5E will be disengaged from operational use on 11 Jan 2019.

Hence this announcement.

2019-01-10
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 9:16 to 9:44 January 9, 2019(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A.

2018-12-10
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 December 12, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-12-10
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 1:16 to 1:44 December 10, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A.

2018-11-27
The Xi'an Satellite Control Center will exercise an south-north orbital control to FY-2F from November 27 to  November  30, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F. 

2018-11-07
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 1:16 to 1:44 November 9, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A.

2018-11-01
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 November 2, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-10-18
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:00 to 9:00 October 22, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-10-16

2018-10-11
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 8:15 to 9:15 October 15, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-10-08

2018-10-08
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 1:16 to 1:44 October 9, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A.

2018-10-08
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 12°S - 8°N, from 10:00 September 29 to 10:00 October 1, 2018(UTC).

2018-09-21
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 September 20, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. 

2018-09-18

This is to announce that from 17:30 to 22:00 of Beijing Time on 19 September (Wednesday), FY-4A will be conducting the north-south station keeping and adjust the pointing of the radiation cooling screen. There is no imagery service from CDAS during this time of hours.

2018-09-14
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 4°N - 24°N, from 06:00 September 14 to 16:00 September 17, 2018(UTC).

2018-09-13
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:00 to 9:00 September 14, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-09-10

To improve accuracy of FY-4A measurements, NSMC will execute a new operational plan that makes the pre-scheduled China-area observations give way to the diffuse reflection calibration during the Autumn Equinox season. As a result, the China Area Imagery will not be available from CDAS at the following time:

(1)     6:45-7:00（Beijing Time）everyday in September 10 -19 

(2)     18:45-19:00（Beijing Time）everyday in September 20 - October 16

Hence this notification. 

2018-09-10
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 2:16 to 2:44 September 10, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. 

2018-08-27
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 August 31, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-08-14
According to orbit predictions, FY-2E, FY-2F, FY-2G and FY-2H will enter the equinox season (autumn 2018) one by one. The following transmissions will be affected as the result: FY-2E transmissions 01:30 and 02:30 (BTC) will be cancelled from August 16 to October 15. FY-2F transmissions 00:00, 01:00 and 01:30 (BTC) will be cancelled from August 17 to October 16. FY-2G transmissions 01:00, 01:30 and 02:00(BTC) will be cancelled from August 23 to October 20. FY-2H transmissions 01:30, 02:00 and 03:00(BTC) will be cancelled from August 30 to October 28.

2018-08-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 7:16 to 7:44 August 8, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. 

2018-08-01
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 July 31, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-07-20
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 15°N - 35°N, from 06:00 July 20 to 00:00 July 22, 2018(UTC).

2018-07-13
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 8:15 to 9:15 July 16, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-07-11
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 July 13, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-07-11
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 8:16 to 8:44 July 12, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. 

2018-06-12
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 9:16 to 9:44 June 14, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. 

2018-06-11
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 7:30 to 8:30 June 11, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-05-23
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-4A from 7:16 to 7:44 May 22, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-4A. 

2018-05-23
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 2:00 to 3:00 May 21, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 2:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-04-19
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 7:30 to 8:30 April 20, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-04-14
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 8:15 to 9:15 April 17, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-04-08

According to the CMA plan of geostationary satellite deployment, FY-4A will replace FY-2G for the GEO system upgrade at its primary operational position of 105E; FY-2G to move to 99.5E. 

The FY-2G position switching is to be implemented April 9-16, 2018. During the period, FY-2G data transmission stops and real-time data service unavailable from ground system.

The CMACast users may consider receiving FY-2E data or FY-4A data from CMACast system as optional for substitute of FY-2G data.

The internet users can download FY-2E or FY-4A at:

 http://data.nsmc.org.cn/portalsite/default.aspx

FY-2G to begin its operation at 99.5E from 8:00am on April 16. The FY-2G receivers please be reminded to change antenna angle. 

2018-03-21

The local time at FY-3C sub-point shifted because of accumulating orbital drift over time. From power safety consideration of the satellite, NSMC will perform the FY-3C Orbital Adjustment from March 23 to April 1, 2018. During this time period, some payloads onboard will be turned off, the ground application system will suspend data receiving and real-time data service. The operational service will restore on April 2. It’s our apology for the inconvenience due to this arrangement.

2018-03-05
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 March 7, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-03-05
According to orbit predictions,  FY-2G will enter the sun transit outage period from March 4 to March 5 during 5:21(UTC) to 5:25(UTC). FY-2G transmissions 5:00 (UTC) will be cancelled during the sun transit outage period.

2018-02-11
According to orbit predictions, FY-2E, FY-2F and FY-2G will enter the equinox season (spring 2018) one by one. The following transmissions will be affected as the result: FY-2E transmissions 01:30 and 02:30 (BTC) will be cancelled from February 12 to April 13. FY-2F transmissions 00:00, 01:00 and 01:30(BTC) will be cancelled from February 14 to April 13. FY-2G transmissions 00:00, 01:00, 01:30 and 02:00(BTC) will be cancelled from February 19 to April 18.

2018-02-11
FY-2E, FY-2F and FY-2G will be orbiting within the  moon shadow during 02:44~03:13, 01:23~01:47, 16:39~18:10  and 01:42~02:15 on February 16, 2018 (BTC). According to the 'FY-2 Satellite Operation and Safety Management 2018', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2E satellite at 2:30 and 3:30 (BTC), FY-2F satellite at 1:00, 1:30, 2:00, 17:00 and 18:00 (BTC), FY-2G at 1:30  and 2:00(BTC) on that day will not be available.

2018-02-09

The TanSat Team is pleased to announce the availability of ACGS Version 2 Level 1B data. Many improvements are listed below:

 1. Bias correction of spectral calibration

The biases in three bands are corrected based on the analysis result of solar Fraunhofer lines observed by TanSat solar calibration.

2. The new background coefficients are applied to the calculation of background signals from October 27, 2017.

3. The datasets of land cover are added to the new version.

4. Updates of water-land indicator

  The values in the new version range from 0-100 with units of percentage.

5. Updates of polarization angles

The polarization angle is updated to the included angle between the accepted polarization axis of the instrument and the instrument reference plane for polarization, defined as the plane formed by the LOS and the ray from the sounding location to the local zenith

6. Changes of radiance units

The ACGS radiance units are changed from W/m2/sr/nm to Ph/S/m2/sr/um in order to adapt the solar input irradiance units. It should be noted that the signal to noise coefficients is suited for the old units W/m2/sr/nm because these coefficients is derived from the lab noise testing which used the old units.

7. The radiance in version 2 is calibrated to the half of the raw radiance in version 1.

8. The file names are updated to include the version number, the whole satellite name and instruments name.

2018-02-02
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 8:15 to 9:15 February 2, 2018 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-01-17
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 January 19, 2018(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2018-01-16
FY-2E(86.5E), FY-2F(112.5E) and FY-2G (105E) will be orbiting within the  moon shadow during 15:20~16:16, 13:02~13:54 and 13:46~14:32 on January 17th, 2018 (BTC). According to the 'FY-2 Satellite Operation and Safety Management 2018', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2E satellite at 15:30, 16:30(BTC),  FY-2F at 13:00, 13:30 and 14:30(BTC), and FY-2G at 13:30, 14:00 and 15:00(BTC) on that day will not be available.

2018-01-10

The Xi'an Satellite Control Center is to carry out east-west station keeping for FY-2G 00:30 to 01:30 January 12, 2017 (UTC), FY-2G data service will be influenced during this time.  There is no FY-2G data at 01:00(UTC). Possible bias found with imagery positioning within 24 hours after a station keeping operation, we apologize for the inconvenience due to it. 

2017-12-12

The Xi'an Satellite Control Center is to carry out east-west station keeping for FY-2G 7:30 to 8:30 December 12, 2017 (UTC), FY-2G data service will be influenced during this time.  There is no FY-2G data at 8:00(UTC). Possible bias found with imagery positioning within 24 hours after a station keeping operation, we apologize for the inconvenience due to it. 

2017-12-04
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 December 6, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-11-10
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 8:15 to 9:15 November 15, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-11-09

2017-11-09
The Xi'an Satellite Control Center is to carry out east-west station keeping for FY-2G  7:30 to 8:30 October 24, 2017 (UTC), FY-2G data service will be influenced during this  time.  There is no FY-2G data at 8:00(UTC). Possible bias found with imagery  positioning within 24 hours after a station keeping operation, we apologize for the  inconvenience due to it. 

2017-11-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 October 20, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-10-17

Due to cumulative effect of orbit drifting, the angle between the sun light and the X-axis of satellite exceeds the range of field of view designed for FY-3B Solar Irradiance Monitor (SIM), no proper measurement is being made in orbit as consequence. In this situation，we decided to switch off SIM on October 17, 2017, therefore relevant product service is at pause. Restarting SIM measurement and data service depends on restoration of observational conditions.

2017-10-16
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 02:00 October 14 to 14:00 October 17, 2017(UTC).

2017-09-30
FY-2F will enter the sun transit outage period from October 3 to October 5 during 4:22(UTC) to 4:25(UTC). FY-2F transmissions 4:00 (UTC) will be cancelled during the sun transit outage period.

2017-09-18

2017-09-18

2017-09-04
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 September 5, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-09-04
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 06:00 September 1 to 06:00 September 5, 2017(UTC).

2017-08-25
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 30°N - 50°N, from 16:00 August 26 to 16:00 August 27, 2017(UTC).

2017-08-24
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 05:00 August 22 to 00:00 August 24, 2017(UTC).

2017-08-24
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 08:15 to 09:15 August 24, 2017(UTC).  During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 08:30 and 09:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-08-14
According to orbit predictions, FY-2E, FY-2F and FY-2G will enter the equinox season (autumn 2017) one by one. The following transmissions will be affected as the result: FY-2E transmissions 01:30 and 02:30 (BTC) will be cancelled from August 17 to October 18. FY-2F transmissions 00:00, 01:00 and 01:30 (BTC) will be cancelled from August 19 to October 19. FY-2G transmissions 00:00, 01:00, 01:30 and 02:00(BTC) will be cancelled from August 25 to October 23.

2017-08-11
Please be notified that the intensified flood-season operation of FY-2E(86.5E) and FY-2G(105E) comes to the end this year at 00:00 (UTC) 16 August. The two satellites will revert to normal observation schedule, i.e., each satellite to transmit 28 full-disc Earth image a day. Specifically, FY-2G (105E) transmits at every hour plus 01:30, 07:30, 13:30, and 19:30 for wind derivation; while FY-2E (86.5E) at every half hour plus 05:00, 11:00, 17:00, and 23:00.

2017-08-10
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 25°N - 35°N, from 02:00 August 9 to 00:00 August 12, 2017(UTC).

2017-08-08
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 30°N - 45°N, from 00:00 August 2 to 00:00 August 3, 2017(UTC).

2017-08-01
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 August 3, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:30 and 9::00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-07-20

FY-2E(86.5E), FY-2F(112.5E) and FY-2G (105E) will be orbiting within the  moon shadow during 11:25~12:32, 07:54~09:47 and 09:00~10:34 on July 23th, 2017 (BTC). Given the circumstance, imagery transmissions of FY-2E satellite at 11:15, 11:45, 12:15 and 12:45 (BTC),  FY-2F at 07:30, 08:00, 09:00 and 10:00(BTC), and FY-2G at 09:00, 09:30, 10:00 and 10:30(BTC) on that day will not be available.

2017-07-12
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 July 14, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-07-05
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 00:00 July 6 to 04:00 July 7, 2017(UTC).

2017-06-26
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 22°N - 32°N, from 12:00 June 24 to 12:00 June 28, 2017(UTC).

2017-06-21
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 12:00 June 21 to 12:00 June 23, 2017(UTC).

2017-06-12
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 5°N - 25°N, from 12:00 June 11 to 00:00 June 13, 2017(UTC).

2017-06-09
On user requirement for observational service in rainy season, the DB readout service of Fengyun geostationary satellite is intensified and the change involves the FY-2 satellites at 105E（FY-2G) and 86.5E(FY-2E) – each satellite to increase transmission for extra 20 images of the northern hemisphere on the basic 28 full-discs of the earth everyday. From 00:00(UTC) June 1st, 2017, the FY-2 satetllite at 105E performs full-disc observation at each hour time, and the north half-disc observation at each half-hour time (except the observations for wind derivation at 5:30, 11:30, 17:30 and 23:30); the FY-2 satellite at 86.5E takes the full-disc image at each 15-minute past the hour, and takes the northern half-disc image at each 15-minute to the hour (except the observations for wind derivation at 2:45, 8:45, 14:45 and 20:45).

On user requirement for observational service in rainy season,  the DB readout service of Fengyun geostationary satellite is intensified and the change involves the FY-2 satellites at 105E（FY-2G) and 86.5E(FY-2E) – each satellite to increase transmission for extra 20 images of the northern hemisphere on the basic 28 full-discs of the earth everyday.  From 00:00(UTC) June 1st, 2017, the FY-2 satetllite at 105E performs full-disc observation at each hour time, and the north half-disc observation at each half-hour time (except the observations for wind derivation at 5:30, 11:30, 17:30 and 23:30); the FY-2 satellite at  86.5E  takes the full-disc image at each 15-minute past the hour, and takes the northern half-disc image at each 15-minute to the hour (except the observations for wind derivation at 2:45, 8:45, 14:45 and 20:45).

2017-06-09

The calibration look up table of FY-2G reflective solar bands (RSB) were updated on Dec. 26,2016. The updated calibration LUT could be found intable 1.

National Satellite Meteorological Center

Contacts:Yuan Li（68409403）liyuan@cma.gov.cn

Table 1 Calibration LUT of FY-2G reflective solar bands

(Updated on Dec.26, 2016)

2017-06-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 April21, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 April 21, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-06-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 January 6, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-06-09
he Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 February 28, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-06-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 April 10, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-06-09
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 21:00 May 11 to 15:00 May 15, 2017(UTC).

2017-06-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 May 26, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-06-09
On user requirement for observational service, the DB readout service of Fengyun geostationary satellite is intensified and the change involves the FY-2 satellites at 105E and 86.5E – each satellite to increase transmission for extra 20 images of the northern hemisphere on the basic 28 full-discs of the earth everyday. From 00:00(UTC) June 1, 2017, the FY-2 satetllite at 105E performs full-disc observation at each hour time, and the north half-disc observation at each half-hour time (except the observations for wind derivation); the FY-2 satellite at 86.5E takes the full-disc image at each 15-minute past the hour, and takes the northern half-disc image at each 15-minute to the hour (except the observations for wind derivation). 

2017-06-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 08:15 to 09:15 June 6, 2017(UTC).  During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 08:15 and 08:45(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-06-09
Due to the reduction of satellite energy, HRPT and MPT of FY-3B will download data only in China and Europe from June 6,2017 .

2017-06-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 June 13, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-06-09
According to orbit predictions, FY-2E will enter the sun transit outage period from February 26 to February 28 during 6:43(UTC) to 6:48(UTC). FY-2G will enter the sun transit outage period from March 5 to March 7 during 5:21(UTC) to 5:25(UTC).The following transmissions will be affected as the result: FY-2E transmissions 6:30(UTC) will be cancelled during the sun transit outage period. FY-2G transmissions 5:00 (UTC) will be cancelled during the sun transit outage period.

2017-06-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 07:30 to 08:30 22 Feburary, 2017(UTC).  During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 07:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-06-09
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30 Feburary 20, 2017 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2017-06-09
According to orbit predictions, FY-2E, FY-2F and FY-2G will enter the equinox season (spring 2017) one by one. The following transmissions will be affected as the result: FY-2E transmissions 01:30 and 02:30 (BTC) will be cancelled from February 14 to April 14. FY-2F transmissions 00:00, 01:00 and 01:30(BTC) will be cancelled from February 15 to April 15. FY-2G transmissions 00:00, 01:00, 01：30 and 02:00(BTC) will be cancelled from February 21 to April 20.

2016-11-11
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30  18th November, 2016 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-10-20

On user requirement for observational service, the DB readout service of Fengyun geostationary satellite is intensified and the change involves the FY-2 satellites at 105E and 86.5E – each satellite to increase transmission for extra 20 images of the northern hemisphere on the basic 28 full-discs of the earth everyday. From 03:00(UTC) October 20, 2016, the FY-2 satetllite at 105E performs full-disc observation at each hour time, and the north half-disc observation at each half-hour time (except the observations for wind derivation); the FY-2 satellite at 86.5E takes the full-disc image at each 15-minute past the hour, and takes the northern half-disc image at each 15-minute to the hour (except the observations for wind derivation). 

2016-10-17
On user's requirement for service,  FY-2F will have an intensified observation every 6 minutes over 5°N - 25°N, from 08:00  16 Oct. to 15:00 22 Oct., 2016(UTC). During this time, 00:40 to 01:00, 09:40 to 10:00, 12:40 to 13:00, and 18:40 to 19:00 of each day, the satellite will stop observation. 

2016-10-07

On user's requirement for service,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 04:00  7 Oct. to 00:00 12 Oct., 2016(UTC). During this time, 00:40 to 01:00, 09:40 to 10:00, 12:40 to 13:00, and 18:40～19:00 of each day, the satellite will stop observation. 

2016-09-27
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 02:00 September 26 to 16:00 September 28, 2016(UTC).

2016-09-27

FY-2E(86.5E) and FY-2G (105E) will be orbiting within the  moon shadow during 9:50~12:23 and 11:17~11:59 on October 1, 2016 (UTC). According to the 'FY-2 Satellite Operation and Safety Management 2016', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2E satellite at 9:30,10:30,11:30 and 12:30 (UTC), FY-2G at 11:00, 11:30  and 12:00(UTC) on that day will not be available.

2016-09-20
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 Septembert 26, 2016 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-09-14
On user requirement for service,  FY-2F will have an intensified observation every 6 minutes over 12°N - 32°N, from 03:00 September 13 to 00:00 September 16, 2016(UTC).

2016-09-05
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 08:30 to 09:30 12 September, 2016(UTC).  During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 08:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-08-26
On user requirement for service in G20,  FY-2F will have an intensified observation every 6 minutes over 25°N - 32°N, from 00:00 September 2 to 12:00 September 6, 2016(UTC).

2016-08-18
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 04:00 August 18 to 12:00 August 19, 2016(UTC).

2016-08-18
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 04:00 August 18 to 12:00 August 20, 2016(UTC).

2016-08-12
According to orbit predictions, FY-2E, FY-2F and FY-2G will enter the equinox season (autumn 2016) one by one. The following transmissions will be affected as the result: FY-2E transmissions 01:30 and 02:30 (BTC) will be cancelled from August 19 to October 19. FY-2F transmissions 23:30, 00:30 and 01:30 (BTC) will be cancelled from August 21 to October 19. FY-2G transmissions 00:00, 01:00, 01:30 and 02:00(BTC) will be cancelled from August 27 to October 25.

2016-08-11
Please be notified that the intensified flood-season operation of FY-2E(86.5E) and FY-2G(105E) comes to the end this year at 00:00 (UTC) 18 August. The two satellites will revert to normal observation schedule, i.e., each satellite to transmit 28 full-disc Earth image a day. Specifically, FY-2G (105E) transmits at every hour plus 01:30, 07:30, 13:30, and 19:30 for wind derivation; while FY-2E (86.5E) at every half hour plus 05:00, 11:00, 17:00, and 23:00.

2016-08-04
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 August 9, 2016 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-08-01
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 06:00 July 31 to 00:00 August 3, 2016(UTC).

2016-07-26
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 03:00 July 26 to 00:00 July 29, 2016(UTC).

2016-07-25
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 00:00 July 24 to 00:00 July 26, 2016(UTC).

2016-07-21
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 30°N - 45°N, from 16:00 July 20 to 12:00 July 21, 2016(UTC).

2016-07-06
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 03:00 July 6 to 14:00 July 9, 2016(UTC).

2016-07-04
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 25°N - 35°N, from 02:00 July 4 to 00:00 July 5, 2016(UTC).

2016-07-01

2016-07-01

2016-06-17
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 8:30 to 9:30  24th June, 2016 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-06-12
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 8:30 to 9:30 17th June , 2016 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 8:30 and 9:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-06-03

On user requirement for observational service in rainy season,  the DB readout service of Fengyun geostationary satellite is intensified and the change involves the FY-2 satellites at 105E and 86.5E – each satellite to increase transmission for extra 20 images of the northern hemisphere on the basic 28 full-discs of the earth everyday.  From 00:00(UTC) May 31, 2016, the FY-2 satetllite at 105E performs full-disc observation at each hour time, and the north half-disc observation at each half-hour time (except the observations for wind derivation); the FY-2 satellite at  86.5E  takes the full-disc image at each 15-minute past the hour, and takes the northern half-disc image at each 15-minute to the hour (except the observations for wind derivation).  

2016-05-18
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 15°N - 35°N, from 00:00 to 10:00 May 19th, 2016(UTC).

2016-04-29
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 7:30 to 8:30 May 6, 2016 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-04-18

2016-04-13

The calibration coefficients of FY-3B/VIRR reflective solar bands (RSB) were updated on 08:00, April 12, 2016(UTC). The updated calibration coefficients are listed in table 1.

                                   National Satellite Meteorological Center

                   Contacts: Lin CHEN (chenlin@cma.gov.cn; 86-10-68406704)

Table 1 Calibration coefficients of FY-3B/VIRR reflective solar bands

(updated on 08:00, April 12, 2016(UTC))

2016-04-13

The calibration coefficients of FY-3A/MERSI reflective solar bands (RSB) were updated on 08:00, April 12, 2016(UTC). The updated calibration coefficients are listed in table 1.

                                  National Satellite Meteorological Center

                   Contacts: Lin CHEN (chenlin@cma.gov.cn; 86-10-68406704)

Table 1 Calibration coefficients of FY-3A/MERSI reflective solar bands

(updated on 08:00, April 12, 2016(UTC))

* Band4 and Band7 were abnormal.

2016-04-13

The calibration coefficients of FY-3A/VIRR reflective solar bands (RSB) were updated on 08:00, April 12, 2016(UTC). The updated calibration coefficients are listed in table 1.

                                   National Satellite Meteorological Center

                   Contacts: Lin CHEN (chenlin@cma.gov.cn; 86-10-68406704)

Table 1 Calibration coefficients of FY-3A/VIRR reflective solar bands

(updated on 08:00, April 12, 2016(UTC))

2016-04-08
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 07:30(UTC)  to 08:30(UTC) 14th April 2016.  During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 07:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-03-30

National Satellite Meteorological center

2016-03-29

The calibration coefficients of FY-3C/VIRR reflective solar bands (RSB) were updated on 22:10, March 27, 2016(UTC). The updated calibration coefficients are listed in table 1.

                             National Satellite Meteorological Center of China

                                  Contacts: Lin CHEN (chenlin@cma.gov.cn)

Table 1 Calibration coefficients of FY-3C/VIRR reflective solar bands

(updated on 22:10, March 27, 2016(UTC))

2016-03-10
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 7:30 to 8:30 March 17, 2016 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-03-09

Dear users,

The Fengyun-3 satellite preprocessing software package is updated on the request of users. The new package contains the module of the Microwave Radiation Imager (MWRI) of FY-3C. Current users can access to the new software through their own accounts. New users that are interested in getting it please complete the application procedure by filling in the application form that can be found on our website. Updating the processing software should follow the instruction given in the readme.txt. 

If there is any question, please contact us at dataserver@cma.gov.cn. 

Best Regards, 

NSMC/CMA

2016-02-25

2016-02-25

According to orbit predictions, FY-2E will enter the sun transit outage period from February 29 to March 2 during 6:39(UTC) to 6:43(UTC). FY-2G will enter the sun transit outage period from March 7 to March 9 during 5:19(UTC) to 5:24(UTC).The following transmissions will be affected as the result: FY-2E transmissions 6:30(UTC) will be cancelled during the sun transit outage period. FY-2G transmissions 5:00 (UTC) will be cancelled during the sun transit outage period.

2016-02-07

2016-01-27
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 7:30 to 8:30 February 3, 2016 (UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 8:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-01-08
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 07:30(UTC)  to 08:30(UTC) 15th January 2016.  During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 07:30(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2016-01-07
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 07:30(UTC)  to 08:30(UTC) 12th January 2016. During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 08:00(UTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-12-21
The Xi'an Satellite Control Center will exercise an south-north orbital control to FY-2E from 10:00(BTC)  Dec. 22, 2015 to 10:00(BTC) Dec. 24, 2015. 

2015-12-07

This is to notify that the operation of FY-2G (105E) has resumed since 17:00(BTC) December 4, 2015. 

2015-12-02

Please be notified that FY-2G operational service has been suspended since 2 December 2015 due to technical reason. Users of FY-2G DB servic could receive FY-2F at 112E during this time.

2015-11-30

The URL address of National Satellite Meteorological Center is changing to the new address http://www.nsmc.org.cn. Please update your bookmark and notify your colleagues or users. The old URL address will still be accessible until 10^th Jan. 2016. Meanwhile, NSMC will stop email server service. The email addresses end with @nsmc.cma.gov.cn will no longer receive emails. If you have not update your contacts’ email addresses, please contact them timely.

The URL address of sub-websites which are being run by NSMC will change at the same time.

1)      FENGYUN satellite data center  http://satellite.nsmc.org.cn

2)      Remote sensing and application center http://rsapp.nsmc.org.cn

3)      GSICS website http://gsics.nsmc.org.cn

If you have any problems, please contact dataserver@cma.gov.cn.

Best Regards,

2015-11-24
Please be notified the NSMC  satellite ground segment goes into maintenance 13:00-17:00 (Beijing local time) on 26 November, 2015, no data  of  FY-2E/F/G, FY-3A/B/C, MTSAT, and NOAA satellites is available on our distribution service during this time. Processing for these data will be made later when operation is resumed.  

2015-11-17
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 15:30 to 16:30 November 24th, 2015 (BTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 16:00(BTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-10-23
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 15:30 to 16:30 October 30th, 2015 (BTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 15:30(BTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-10-12

FY-2E(86.5E), FY-2F(112.5E) and FY-2G (105E) will be orbiting within the  moon shadow during 16:46~20:59, 14:09~15:23 and 19:07~20:01, 14:57~16:18 and 19:11~20:26 on October 13th, 2015 (BTC). According to the 'FY-2 Satellite Operation and Safety Management 2015', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2E satellite at 16:30, 17:00, 17:30,18:30,19:30 and 20:30 (BTC),  FY-2F at 13:30, 14:30, 15:30, 18:30 and 19:30(BTC), and FY-2G at 15:00, 16:00, 19:00, 19:30  and 20:00(BTC) on that day will not be available.

FY-2G will enter the sun transit outage period from October 13th to October 15th during 12:58(BTC) to 13:01(BTC). FY-2G transmissions 13:00 (BTC) will be cancelled during the sun transit outage period.

2015-09-30
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 15:30 to 16:30 October 9th, 2015 (BTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 16:00(BTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-09-28
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 15:30 to 16:30 September 28th, 2015 (BTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 15:30(BTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-09-28
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 15°N - 30°N, from 12:00 September 27th to 20:00 September 29, 2015(BTC).

2015-09-09

FY-2E(86.5E), FY-2F(112.5E) and FY-2G (105E) will be orbiting within the  moon shadow during 05:05~05:46, 03:56~04:35 and 10:48~11:43, 04:13~04:58 and 11:31~12:25 on September 13th, 2015 (BTC). According to the 'FY-2 Satellite Operation and Safety Management 2015', ground reception stops in case the satellite be shadowed by the moon. Given the circumstance, imagery transmissions of FY-2E satellite at 04:30, 05:00 and 05:30 (BTC),  FY-2F at 03:30, 04:30, 10:30, 11:00 and 11:30(BTC), and FY-2G at 04:00, 05:00, 11:00 and 12:00(BTC) on that day will not be available.. 

2015-09-06
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 20°N - 45°N, from 8:00 September 6 to 8:00 September 9, 2015(BTC).

2015-09-01
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 14:00 September 2 to 12:00 September 3, 2015(BTC).

2015-08-31
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 10:00 August 30th  to 23:00 August 30th, 2015(BTC).

2015-08-30
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 02:00 August 30th  to 15:00 August 30th, 2015(UTC).

2015-08-25
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 14:00 August 22th  to 10:00 August 23th, 2015(BTC).

2015-08-14

Please be notified that the intensified flood-season operation of FY-2E(86.5E) and FY-2G(105E) comes to the end this year at 08:00 (BT) 18 August. The  two satellites will revert to normal observation schedule, i.e., each satellite to transmit 28 full-disc Earth image a day. Specifically,  FY-2G (105E) transmits at every hour plus 01:30, 07:30, 13:30, and 19:30 for wind derivation;  while FY-2E (86.5E) at every half hour plus 05:00, 11:00, 17:00, and 23:00.        

2015-08-14
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 15:30 to 16:30 August 21th, 2015 (BTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 16:00(BTC). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-08-14
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 16:00 August 13th  to 06:00 August 14th, 2015(BTC).

2015-08-13

According to orbit predictions, FY-2E, FY-2F and FY-2G will enter the equinox season (autumn 2015) one by one. The following transmissions will be affected as the result: FY-2E transmissions 01:30 and 02:30 (BTC) will be cancelled from August 18 to October 17. FY-2F transmissions 23:30, 00:30 and 01:30 (BTC) will be cancelled from August 23 to October 22. FY-2G transmissions 00:00, 01:00, 01:30 and 02:00(BTC) will be cancelled from August 28 to October 26.

2015-08-07
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 10°N - 30°N, from 12:00 August 6  to 23:00 August 8, 2015(UTC+8).

2015-07-28
Please be notified that some of the instruments on FY-3C will be switched on at 8:00AM (Beijing Time) 30 July 2015 to make observation again. These instruments are VIRR, MWRI, MWHS, GNOS, IRAS, and TOU. 

2015-07-24
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 15:30 to 16:30 July 29th, 2015 (UTC+8). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 15:30(UTC+8). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-06-23
The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2G from 16:30 to 17:30 June 29th, 2015 (UTC+8). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2G at 16:30 and 17:00(UTC+8). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-06-05

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 16:30 to 17:30 June 12th, 2015 (UTC+8). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 16:30(UTC+8). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-06-01

Please be notified that FY-3C operational service has been suspended since 31 May 2015 due to technical reason. 

2015-05-29

As it's planned, FY-2G will substitute FY-2E's operation at 105E from 08:00(BTC) June 3, 2015. FY-2G transmits 28 full-disc images of each hour time and the 4 half-hour time,  i.e., 01:30, 7.30, 13.30, and 19:30 (BTC) for AMVs.  In rainy season, extra 20 northern-hemisphere images will be transmitted at each half hour, in addition to the above 28 full-discs.   

2015-05-29

On user requirement for observational service in rainy season,  the DB readout service of Fengyun geostationary satellite is intensified and the change involves the FY-2 satellites at 105E and 86.5E – each satellite to increase transmission for extra 20 images of the northern hemisphere on the basic 28 full-discs of the earth everyday.  From 00:00(UTC) May 29, 2015, the FY-2 satetllite at 105E performs full-disc observation at each hour time, and the north half-disc observation at each half-hour time (except the observations for wind derivation); the FY-2 satellite at  86.5E  takes the full-disc image at each 15-minute past the hour, and takes the northern half-disc image at each 15-minute to the hour (except the observations for wind derivation).  

2015-05-14

On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 15°N - 35°N, from 20:00(UTC+8)  May 13th  to 20:00(UTC+8) May 17th, 2015.

2015-05-06

Please be notified that the inclination of FY-3B orbit is undergoing adjustment from 17:00(UTC) of 4 May to 10:00(UTC)  of 8 May. There is not FY-3B data service during this period.  

2015-04-29
On user requirement for service, FY-2F will have an intensified observation every 12 minutes over 25N - 40N, from 00:00(UTC+8) Apr. 29 to 08:00(UTC+8) Apr. 30, 2015.

2015-04-28

The refractivity products of FY-3C/GNOS were updated on Apr. 13, 2015. The updated products include two aspects.

1. Quality identifiers are tagged to refractivity profiles. The tag labelled as 100 shows that the profile is good. Please be careful when using these profiles labelled as 50 or 60.

2. The system errors in the rising and setting occultations are much removed.

                                  National Satellite Meteorological Center

                                  Contacts: Mi Liao (liaomi@cma.gov.cn)

2015-04-28
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 20°N - 40°N, from 08:00(UTC+8)  Apr. 28  to 00:00(UTC+8) Apr. 29, 2015.

2015-04-27
On user requirement for service in rainy season,  FY-2F will have an intensified observation every 6 minutes over 35°N - 45°N, from 15:00(UTC+8)  Apr. 27  to 08:00(UTC+8) Apr. 28, 2015.

2015-04-22

The parameters for the daily calibration updating model of FY-3B/MERSI reflective solar bands (RSB) were updated on Apr. 21, 2015. The updated model parameters are listed in table 1.

                                  National Satellite Meteorological Center

                                  Contacts: Ling SUN (sunling@cma.gov.cn)

Table 1 Parameters for the daily calibration updating model of FY-3B/MERSI RSBs

 (updated on Apr. 21, 2015)

2015-04-10

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2F from 16:30 to 17:30 Apr. 17, 2015 (UTC+8). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2F at 16:30(UTC+8). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-04-07

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2E from 15:30 to 16:30 Apr. 13, 2015 (UTC+8). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2E at 16:00(UTC+8). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-04-07

The Xi'an Satellite Control Center will exercise an east-west orbital control to FY-2D from 15:30 to 16:30 Apr. 10, 2015 (UTC+8). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY-2D at 15:30(UTC+8). Under a normal circumstance, the imageries’ positioning accuracy will see some bias within 24 hours after the orbital control. Please forgive the inconvenience caused.

2015-04-02

Please be notified that according to the operational arrangement, NSMC is not to receive data transmission, but dedicate to making the moon calibration of FY-2F at following time: 09:30 on 2 April, 10:30 on 3 April, 11:30 on 4 April, and 12:30 on 5 April. There will be no full disc imagery service of FY-2F satellite at the above-mentioned hours as the consequence.

2015-03-18

The antenna correction coefficients of FY-3C/MWHS(II) were updated on Mar. 17, 2015. The updated antenna correction coefficients are listed in table 1.

                                  National Satellite Meteorological Center

                                  Contacts: Guo Yang (guoyang@cma.gov.cn)

(updated on Mar. 17, 2015)