The Xi'an Satellite Control Center will exercise an west-east orbital control to FY- 4B from 4:16 to 4:44  March 27, 2025(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 4:16 to 4:44(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.