WMO OSCAR | Satellite: FY-3I

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
Power
Data access link	no link provided
Data access information	TBD
Orbit	Drifting orbit	Altitude	407 km
Inclination	50 °

Space agency	CMA , NRSCC
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

Feng-Yun - 3
- FY-3A (2008 - 2015)
- FY-3B (2010 - 2021)
- FY-3C (2013 - 2023)
- FY-3D (2017 - 2023)
- FY-3E (2021 - 2027)
- FY-3F (2022-12 - 2028)
- FY-3G (2023 - 2027)
- FY-3H (2023 - 2029)
- FY-3I (2026 - 2034)
- FY-3J (2027 - 2035)

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

Satellite payload

All known instruments flying on FY-3I

Instrument	Full name	Start date	EOL date	Status
PRM	Precipitation Measurement Radar	Feb 2026 *	≥2034 *	N/A
GNOS-2	GNSS Radio Occultation Sounder - 2	Feb 2026 *	≥2034 *	N/A
RMOI	Rainfall Measurement Optical Imager	Feb 2026 *	≥2034 *	N/A
MWRI-RM	Micro-Wave Radiation Imager for the Rainfall Mission	Feb 2026 *	≥2034 *	N/A
SWS/SEM/NADD	Space Weather Suite / Space Environment Monitor / Neutral Atmospheric Density Detector	Feb 2026 *	≥2034 *	N/A

* The information in this field is estimated or assumed

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