FY-4B will substitute FY-4A's operation at 105°E from 00:00 (UTC) March 5th, 2024. From Feburary 1st to March 5th, FY-4B transmissions will be cancelled. From 00:00 (UTC) March 5th, FY-4A will be disengaged from operational use.

FY-4A China Regional Image