Jason 1

Also called EOS-RAM

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General

Designation	26997 / 01055A
Launch date	7 Dec 2001
Country of origin	France and United States
Mission	Remote sensing
Perigee/Apogee	1337 km
Inclination	66°
Period	112 min (9.9 days repeat)
Launch vehicle	Delta 2 #289

Said to cost approx $150 million. First of CNES' Proteus small satellite missions.

Replaced Topex Poseidon but flyed in formation for a while. Launch was delayed to after a problem in a solar array drive motor was detected. Was declared operational in March 2002. Control of the satellite should be transfered to JPL in April 2002.

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External resources

http://sealevel.jpl.nasa.gov/

http://topex-www.jpl.nasa.gov/mission/jason-1.html
http://www.jason.oceanobs.com/html/missions/jason/welcome_uk.html
sat-index articles

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End of life

Out of service	21 Jun 2013
Cause	Was decommissionned after failure of the last working transponder.
Decay

Technical data

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Specifications

Prime contractor	Alcatel Space
Platform	Proteus
Mass at launch	500 kg
Mass in orbit
Dry mass	472 kg
Dimension
Solar array	Twin panels, provide 1000 W
Stabilization	3-axis
DC power	EOL: 1000 W
Design lifetime	5 years

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Payload

Poseidon 2 (CNES): dual frequency radar altimetry to be built by Alcatel Telecom for about $29 million
Doris (CNES)
JMR (NASA)
TRSR
LRA -NASA)

Should downlink in S-band atr 613 Kbps over Poker Flats, Alaska and Wallops Island, Virginia.

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