BackForward Satellite: FY-4G 

Satellite details
Acronym FY-4G
Full name Feng-Yun - 4G
Satellite Description
  • 7th flight unit of the FY-4 programme.
  • Mission: operational meteorology.
  • Substantial contribution to space weather.
Mass at launch 5300 kg Dry mass
Power 3200 W
Data access link no link provided
Data access information
  • Near-real time availability of full resolution data by HRIT and CMACast.
  • Availability of selected information by LRIT.
  • Meteorological warnings (WAIB) sharing the LRIT link.
  • Availability of DCP messages by land lines.
Orbit Geostationary orbit Altitude 35786 km
Longitude 86.5° E


Space agency CMANRSCC
Status Planned
Details on Status
(as available)
  • The quoted geostationary position is a guess.  The actual is TBD.
  • The quoted launch date is a guess.  The actual is TBD.
Launch ≥2033 EOL ≥2040
Last update: 2021-10-22
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on FY-4G

Acronym Full name
DCS Data Collection Service
GIIRS Geostationary Interferometric Infrared Sounder
LMI Lightning Mapping Imager
AGRI Advanced Geostationary Radiation Imager
SEP/HEPS Space Environment Package / High Energy Particles Sensor
SXEUV Solar X-EUV imaging telescope
SEP-fields Space Environment Package - fields
SEP/MEPS Space Environment Package / Medium Energy Particles Sensor
SEP/LEPS Space Environment Package / Low Energy Particles Sensor
SUVI Solar Extreme-UltraViolet Imager
SXUS Solar X-EUV Irradiance Sensor
MUSI Multiband Ionospheric Ultra-Violet Spectrum Imager
Show instrument status and calibration
Satellite Field of View

Estimate of the satellite's footprint, assuming a zenith angle of 75 °
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