BackForward Satellite: HY-4A (or HY-2S) 

Satellite details
Acronym HY-4A (or HY-2S)
Full name Hai Yang 4A
WIGOS Station Identifier ---
Satellite Description
  • First unit of the HY-4 programme.
  • Main mission: ocean salinity observation.
  • Contributions to sea surface temperature and sea surface roughness observations
  • The satellite is equipped with 3 types of remote sensing payloads: 
    • L, C and K-Band aperture passive microwave radiometers
    • Active L-Band scatterometer 
    • A spectrum monitor
Mass at launch Dry mass
Power
Data access link no link provided
Data access information
  • Data distributed by NSOAS.
Orbit Sunsynchronous orbit Altitude 640 km
ECT 06:00 desc

 

Space agency NSOAS
Status Commissioning
Details on Status
(as available)
  • More information on instruments needed
Launch 13 Nov 2024 EOL ≥2033
Last update: 2025-05-12
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-4A (or HY-2S)

Acronym Full name
Show instrument status and calibration