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- Jason maps ocean surface topography. The data collected provide information on ocean surface current velocity and heights which, when combined with ocean models, can lead to a four-dimensional description of ocean circulation. Data from Jason are also extending ocean surface topography into the 21st century, providing a 5-year view of global ocean surface topography, increasing understanding of ocean circulation, improving forecasting of climate events, and measuring global sea-level change. Key Jason Facts Joint with France Dimensions: Satellite support module: 95.4 cm ý 95.4 cm ý 100.0 cm; Payload module 95.4 cm ý 95.4 cm ý 121.8 cm; Solar array span: Two wings with four 1.5 m ý 0.8 m panels per wing; total surface of 9.8 m2 Mass: 500 kg Power: 2100 W Downlink: Jason telemetry downlink is 0.7 Mbps (700 Kbps) S-Band to JPL, Wallops Island, Virginia, Poker Flats, Alaska, and Aussaguel, France Group: Platform_Details Entry_ID: JASON-1 Group: Platform_Identification Platform_Category: Earth Observation Satellites Platform_Series_or_Entity: EOS (Earth Observing System) Short_Name: JASON-1 End_Group Group: Synonymous_Platform_Names Short_Name: JASON End_Group Group: Platform_Associated_Instruments Short_Name: TRSR Short_Name: POSEIDON-2 Short_Name: LRA Short_Name: JMR Short_Name: DORIS End_Group Group: Orbit Orbit_Altitude: 1336 km Orbit_Inclination: 66 degrees Period: 112.4 minutes Repeat_Cycle: 9.9156 days Perigee: 1,332 km (827 mi) Apogee: 1,344 km (835 mi) Orbit_Type: LEO > Low Earth Orbit > Polar Non-Sun-Synchronous End_Group Creation_Date: 2007-04-16 Online_Resource: http://sealevel.jpl.nasa.gov/mission/jason-1.html Online_Resource: http://www.aviso.oceanobs.com/ Online_Resource: http://nasascience.nasa.gov/missions/jason-1 Online_Resource: http://www.nasa.gov/centers/jpl/missions/jason.html Online_Resource: http://www.cnes.fr/web/1441-jason.php Sample_Image: http://sealevel.jpl.nasa.gov/mission/images/jason-1-in-space.gif Group: Platform_Logistics Launch_Date: 2001-12-07 Launch_Site: Vandenberg Air Force Base, USA Design_Life: 3-year primary mission; 2-year extended mission Primary_Sponsor: USA/NASA Primary_Sponsor: France/CNES End_Group End_Group
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