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
  • New unit of the HY-2 programme.
  • Main mission: ocean salinity observation.
  • To measure salinity, sea surface temperature and sea surface roughness
  • New instrumentation, description not yet available but may include Synthetic Aperture Microwave Radiometer (L-band) and Scatterometer (L-Band) and radiometer (C/K bands).
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 , CAST
Status Commissioning
Details on Status
(as available)
Launch 13 Nov 2024 EOL ≥2033
Last update: 2024-12-20
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
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
ALT active 5.25 GHz - 5.25 GHz 0 MHz - C-band radar altimeter
ALT active 13.58 GHz - 13.58 GHz 0 MHz - Ku-band radar altimeter
SCAT active 13.256 GHz - 13.256 GHz 0 MHz - Ku-band scatterometer