Artist's interpretation of the Jason-1 satellite
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Mission type | Ocenaography |
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Operator | NASA / CNES |
COSPAR ID | 2001-055A |
SATCAT no. | 26997 |
Website | Ocean Surface Topography from Space |
Mission duration | 3 years (planned) 11 1⁄2 years (achieved) |
Spacecraft properties | |
Bus | Proteus |
Manufacturer | Thales Alenia Space |
Launch mass | 500 kilograms (1,100 lb) |
Power | 1000 W |
Start of mission | |
Launch date | December 7, 2001 at 15:07:00 UTC |
Rocket | Delta II |
Launch site | Vandenberg SLC-2W |
End of mission | |
Disposal | Decommissioned |
Deactivated | 3 July 2013 |
Orbital parameters | |
Reference system | Geocentric |
Regime | LEO |
Semi-major axis | 7,703.0 kilometers (4,786.4 mi) |
Eccentricity | 0.0008685 |
Perigee | 1,319 kilometers (820 mi) |
Apogee | 1,332 kilometers (828 mi) |
Inclination | 66° |
Period | 6754.0 seconds |
RAAN | 284,2056 degrees |
Argument of perigee | 264,9398 degrees |
Mean anomaly | 207,3919 degrees |
Epoch | 10 April 2016 04:19:56 UTC |
Jason-1 is a satellite oceanography mission to monitor global ocean circulation, study the ties between the ocean and the atmosphere, improve global climate forecasts and predictions, and monitor events such as El Niño and ocean eddies.
The lineage of the name begins with the JASO1 meeting (JASO = Journées Altimétriques Satellitaires pour l'Océanographie) in Toulouse, France to study the problems of assimilating altimeter data in models. Jason as an acronym also stands for "Joint Altimetry Satellite Oceanography Network". Additionally it is used to reference the mythical quest for knowledge of Jason and the Argonauts.[1][2][3]
It is the successor to the TOPEX/Poseidon mission, which measured ocean surface topography from 1992 through 2005. Like its predecessor, Jason-1 is a joint project between the NASA (United States) and CNES (France) space agencies. Jason-1's successor, the Ocean Surface Topography Mission on the Jason-2 satellite, was launched in June 2008. These satellites provide a unique global view of the oceans that is impossible to acquire using traditional ship-based sampling.
Jason-1 was built by Thales Alenia Space using a Proteus platform, under a contract from CNES, as well as the main Jason-1 instrument, the Poseidon-2 altimeter (successor to the Poseidon altimeter on-board TOPEX/Poseidon)