BackForward Satellite: COMPIRA 

Satellite details
Full name Coastal and Ocean measurement Mission with Precise and Innovative Radar Altimeter
WIGOS Station Identifier ---
Satellite Description
  • Single flight unit of the COMPIRA programme.
  • Main mission: large-swath ocean altimetry.
Mass at launch Dry mass
Data access link no link provided
Data access information


Orbit Drifting orbit Altitude TBD
Inclination 51 °


Space agency JAXA
Status Planned
Details on Status
(as available)
Launch ≥2024 EOL ≥2027
Last update: 2023-12-21
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 COMPIRA

Acronym Full name
SHIOSAI SAR Height Imaging Oceanic Sensor with Advanced Interferometry
Altimeter Altimeter
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
Altimeter active 5 GHz - 5.3 GHz 0 MHz - C-band radar altimeter
Altimeter active 14 GHz - 13.5 GHz 0 MHz - Ku-band radar altimeter
SHIOSAI active 10 GHz - 9.5 GHz 0 MHz - X-band radar altimeter