BackForward Satellite: HY-2A 

Satellite details
Acronym HY-2A
Full name Hai Yang 2A
Satellite Description
  • 1st flight unit of the HY-2 programme.
  • Main mission: ocean observation.
Mass at launch 1500 kg Dry mass
Data access link
Data access information
Orbit Sunsynchronous orbit Altitude 975 km
ECT 06:00 desc


Space agency NSOASCAST
Status Presumably inactive
Details on Status
(as available)

All instruments degraded since Nov 2020

Launch 16 Aug 2011 EOL ≥2022
Last update: 2022-04-28
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 HY-2A

Acronym Full name
DORIS Doppler Orbitography and Radiopositioning Integrated by Satellite
LRA Laser Retroreflector Array
MWRI Microwave Radiometer Imager
SCAT Scatterometer
CMR Calibration Microwave Radiometer
ALT Radar Altimeter
Show instrument status and calibration
Telecommunication frequency or microwave sensing channel information Show expert details
Service Dir or Mode Frequency Emission designator Bandwidth Polarisation D/A Data rate or Baseband Comments
DORIS E-S 401.25 MHz 23K0G1D 23  kHz RHCP D   Precise positioning by DORIS
DORIS E-S 2036.25 MHz 95K0G1D 95  kHz RHCP D   Precise positioning by DORIS
MWI passive 6600 MHz 350000  kHz H&V A   Window channel
MWI passive 10700 MHz 250000  kHz H&V A   Window channel
MWI passive 18700 MHz 250000  kHz H&V A   Window channel
MWI passive 23800 MHz 400000  kHz V A   Water vapour channel
MWI passive 37000 MHz 1000000  kHz H&V A   Window channel
ALT active 5250 - 5250 MHz N/R  kHz - A   C-band altimeter
ALT active 13580 - 13580 MHz N/R  kHz - A   Ku-band altimeter
SCAT active 13256 - 13256 MHz N/R  kHz - A   Ku-band scatterometer