BackForward Satellite: FY-3I 

Satellite details
Acronym FY-3I
Full name Feng Yun 3I
Satellite Description
  • Previously named FY-3RM-2 as 2nd flight unit of the FY-3RM programme, now integrated in the FY-3 programme.
  • Main mission: continuity of the Global Precipitation Measurement mission (GPM).
  • Substantial contribution to climatology.
  • Contributes to space weather and provides reference radiation measurements.
Mass at launch Dry mass
Data access link no link provided
Data access information
  • TBD
Orbit Drifting orbit Altitude 407 km
Inclination 50 °


Space agency CMANRSCC
Status Planned
Details on Status
(as available)
Launch ≥2026 EOL ≥2034
Last update: 2022-05-09
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-3I

Acronym Full name
PRM Precipitation Measurement Radar
GNOS-2 GNSS Radio Occultation Sounder - 2
RMOI Rainfall Measurement Optical Imager
MWRI-RM Micro-Wave Radiation Imager for the Rainfall Mission
SWS/SEM/NADD Space Weather Suite / Space Environment Monitor / Neutral Atmospheric Density Detector
Show instrument status and calibration
Satellite frequencies for Earth Observation, data transfer and platform communications and control
Earth observation MW frequencies
Service Sensing mode Frequency (GHz) Bandwidth (MHz) Polarisation Comments
MWRI passive 10.65 GHz 10 MHz H&V Window channel
MWRI passive 18.7 GHz 10 MHz H&V Window channel
MWRI passive 23.8 GHz 15 MHz H&V Water vapour channel
MWRI passive 36.5 GHz 20 MHz H&V Window channel
MWRI passive 89 GHz 25 MHz H&V Window channel
MWTS-3 passive 23.8 GHz 270 MHz H or V Water vapour channel
MWTS-3 passive 31.4 GHz 180 MHz H or V Window channel
MWTS-3 passive 50 GHz - 57.455 GHz 0 MHz H or V Oxygen band, 13 channels
MWHS-2 passive 89 GHz 1500 MHz V Window channel
MWHS-2 passive 113 GHz - 124.75 GHz 0 MHz H Oxygen band, 8 channels
MWHS-2 passive 150 GHz 1500 MHz V Weak water vapour channel
MWHS-2 passive 175 GHz - 191.31 GHz 0 MHz H Water vapour band, 5 channels
Rainradar active 14 GHz - 13.6 GHz 0 MHz - Ku-band precipitation radar
Rainradar active 36 GHz - 35.55 GHz 0 MHz - Ka-band precipitation radar