Introduction of FY-4

FY-4 is the 2nd generation FengYun Geo. The spacecraft has the following parameters:

Tab. FY-4 Spacecraft parameters.
Launch Weight approx. 5400kg
Stabilization Three-axis
Attitude accuracy 3″
Bus 1553B + Spacewire
Raw data transmission X band
Output power ≥ 3200W
Design life over 7 years
Fig. FY-4A spacecraft.