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Jason 2



Jason 2 is a French-American ocean monitoring satellite that was launched by a Delta 2 rocket from Vandenberg AFB at 07:46 UT on 20 June 2008. The 510 kg, 500 W craft carries instruments to enable derivation of sea surface levels with an accuracy of 2.5 cm. It is a cooperative mission involving the French CNES, the European EUMETSAT, and the American NOAA and NASA.

Also used by Jason 2 is the orbit determination by means of continuous monitoring of GPS transmissions. Fuller details of the mission may be seen at

Alternate Names

  • 33105
  • Jason2
  • OSTM
  • Ocean Surface Topography Mission

Facts in Brief

Launch Date: 2008-06-20
Launch Vehicle: Delta II
Launch Site: Vandenberg AFB, United States
Mass: 510 kg
Nominal Power: 500 W

Funding Agencies

  • Centre National d'Etudes Spatiales (France)
  • National Aeronautics and Space Administration (United States)
  • National Oceanic and Atmospheric Administration (United States)
  • EUMETSAT (International)


  • Earth Science

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Mr. Lee-Lueng FuProject ScientistNASA Jet Propulsion
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