FY-3A Satellite


  • 1st flight unit of the FY-3 series.
  • Main mission: operational meteorology.
  • Substantial contribution to ocean and ice monitoring, climate monitoring.
  • Significant contribution to atmospheric chemistry and space weather.
Orbit Sunsynchronous orbit
Altitude 836 km
ECT 10:15 desc
Mass at launch 2298 kg
Dry mass 2234 kg
Power 2480 W
Launch 2008-05-27
End of service 2018-03-01


Acronym Full name
MERSI  Medium Resolution Spectral Imager
VIRR  Visible and Infra-Red Radiometer
MWHS  Micro-Wave Humidity Sounder
MWRI  Micro-Wave Radiation Imager
MWTS  Micro-Wave Temperature Sounder
IRAS  Infra Red Atmospheric Sounder
TOU  Total Ozone Unit
SBUS  Solar Backscatter Ultraviolet Sounder
SIM  Solar Irradiance Monitor
ERM  Earth Radiation Measurement
SEM  Space Environment Monitor

Data Circulation

DPT (Delayed Picture Transmission) to acquire the on-board stored global data.

MPT (Medium-resolution Picture Transmission), for X-band real-time broadcasting of information of MERSI data.

HRPT (High Resolution Picture Transmission) for real-time broadcasting of full information of instruments aboard but MERSI.


Instrument Data Code
MERSI L1 dataL2L3 product
VIRR L1 dataL2L3 product
MWRI L1 data
MWHS L1 dataL2L3 product
MWTS L1 data
IRAS L1 data
TOU L1 dataL2L3 product
SBUS L1 data
ERM L1 data
SIM L1 data
MULSS L2L3 product
ERBM L2L3 product


FY-3(01) Instruments of FY-3A/B
FY-3A VIRR Test visual image by FY-3A
FY-3A VIRR First visual image by FY-3A
FY-3A MERSI First image by FY-3A MERSI
FY-3A MERSI First image by FY-3A MERSI (part)
FY-3A MERSI rotated image FY-3A MERSI rotated image
FY-3A MERSI FY-3A MERSI mosaic image