BackForward Satellite: JASON-1 

Satellite details
Acronym JASON-1
Full name Joint Altimetry Satellite Oceanography Network - 1
WIGOS Station Identifier ---
Satellite Description
  • 1st flight unit of the JASON series.
  • Main mission: ocean topography and waves.
  • Substantial contribution to Solid Earth (geoid).
  • Significant contribution to space weather.
Mass at launch 500 kg Dry mass 450 kg
Power 450 W
Data access link no link provided
Data access information
  • Off-line Interim Geophysical Data Record re-processed after CNES makes available the Precise Orbit Determination are distributed within 1-2 days.
  • Statistically analysed Geophysical Data Records are distributed from archives within 2 months.
Orbit Drifting orbit Altitude 1324 km
Inclination 66 °


Status Inactive
Details on Status
(as available)
  • TRSR no longer functional.
  • Orbit lowered to 1324 km from the original 1336 km in April-May 2012 to perform a geodetic mission.
  • Fatal failure of the transmitter on 21 June 2013.
Launch 07 Dec 2001 EOL 01 Jul 2013
Last update: 2024-04-15
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 JASON-1

Acronym Full name
DORIS Doppler Orbitography and Radiopositioning Integrated by Satellite
JMR JASON Microwave Radiometer
LRA Laser Retroreflector Array
Poseidon-2 Poseidon 2
TRSR Turbo Rogue Space Receiver
Show instrument status and calibration
Satellite frequencies for Earth Observation, data transfer and platform communications and control
Frequencies for satellite management
Service Direction Frequency (MHz) Emission designator Bandwidth (kHz) Polarisation D/A Data rate (kbps) or Baseband (kHz) 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
Earth observation MW frequencies
Service Sensing mode Frequency (GHz) Bandwidth (MHz) Polarisation Comments
Poseidon-2 active 5 GHz - 5.3 GHz 0 MHz - C-band radar altimeter
Poseidon-2 active 14 GHz - 13.575 GHz 0 MHz - Ku-band radar altimeter
JMR passive 18.7 GHz 200 MHz - Window channel (supporting altimeter)
JMR passive 23.8 GHz 400 MHz - Water vapour channel (supporting altimeter)
JMR passive 34 GHz 400 MHz - Window channel (supporting altimeter)