https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.6 2026-03-19T10:41:57.720Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/platforms/4ea59dad-ed94-453e-a991-62c790a1d101 JASON-1 Date=2021-12-02 User Id=tstevens Entity=BroaderRelation Operation=DELETE User Note=Move Concepts System Note=delete broader relation Old Value=JASON-1 [4ea59dad-ed94-453e-a991-62c790a1d101,826231] - Earth Observation Satellites [3466eed1-2fbb-49bf-ab0b-dc08731d502b,826121] Date=2021-12-02 User Id=tstevens Entity=BroaderRelation Operation=INSERT User Note=Move Concepts System Note=add broader relation New Value=JASON-1 [4ea59dad-ed94-453e-a991-62c790a1d101,826231] - Joint Altimetry Satellite Oceanography Network (JASON) [d3747d32-f82d-4a98-aa49-aad5653897fe,835940] Date=2019-02-21 User Id=mmorahan Entity=Resource Operation=UPDATE Field=type System Note=update Resource Old Value=IMAGE New Value=image Date=2020-10-06 User Id=mmorahan Entity=AltLabel Operation=INSERT System Note=insert AltLabel New Value=id: null category: null text: Joint Altimetry Satellite Oceanography Network - 1 language code: en Date=2019-02-21 User Id=mmorahan Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: e7c3b01c-0739-487b-adbb-59d84c559375 relationship type: null relationship value: null generated by: null Jason maps ocean surface topography. The data collectedprovide information on ocean surface current velocity andheights which, when combined with ocean models, canlead to a four-dimensional description of ocean circulation.Data from Jason are also extending ocean surfacetopography into the 21st century, providing a 5-year viewof global ocean surface topography, increasing understandingof ocean circulation, improving forecasting ofclimate events, and measuring global sea-level change.Key Jason FactsJoint with FranceDimensions: 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 m2Mass: 500 kgPower: 2100 WDownlink: Jason telemetry downlink is 0.7 Mbps (700 Kbps) S-Band to JPL, Wallops Island, Virginia, Poker Flats, Alaska, and Aussaguel, FranceGroup: 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_GroupEnd_Group 2020-10-06 09:21:57.0