The Xi'an Satellite Control Center will exercise an satellite maintenance operation to FY- 4B from 8:40 to 9:40  March 18, 2026(UTC). During the period, ground receiving stations shall cease to receive the cloud imageries sent by FY- 4B from 8:40 to 9:40(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.