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/e5eb6afb-5d3e-4767-ad08-5293c5b2d88b TOPEX/POSEIDON Date=2025-04-28 User Id=sritz Entity=Definition Operation=UPDATE Field=reference System Note=update Definition New Value=https://eospso.nasa.gov/missions/topexposeidon Date=2025-04-28 User Id=sritz Entity=Resource Operation=DELETE System Note=delete Resource Old Value=id: 588303 type: IMAGE url: http://sealevel.jpl.nasa.gov/gallery/spacecraft/gifs/BHT.jpg Date=2021-11-30 User Id=tstevens Entity=BroaderRelation Operation=INSERT User Note=Move Concepts System Note=add broader relation New Value=TOPEX/POSEIDON [e5eb6afb-5d3e-4767-ad08-5293c5b2d88b,826851] - Earth Observation Satellites [3466eed1-2fbb-49bf-ab0b-dc08731d502b,826121] Date=2021-11-30 User Id=tstevens Entity=BroaderRelation Operation=DELETE User Note=Move Concepts System Note=delete broader relation Old Value=TOPEX/POSEIDON [e5eb6afb-5d3e-4767-ad08-5293c5b2d88b,826851] - Space-based Platforms [b39a69b4-c3b9-4a94-b296-bbbbe5e4c847,835875] Date=2021-11-18 User Id=tstevens Entity=BroaderRelation Operation=DELETE User Note=Move Concepts System Note=delete broader relation Old Value=TOPEX/POSEIDON [e5eb6afb-5d3e-4767-ad08-5293c5b2d88b,826851] - Earth Observation Satellites [3466eed1-2fbb-49bf-ab0b-dc08731d502b,826121] Date=2025-04-28 User Id=sritz Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=TOPEX/Poseidon was an oceanography mission to monitor global ocean circulation, improve global climate predictions, and monitor events such as El Niño and ocean eddies. These data have greatly enhanced our understanding of the role of the ocean in the formation of Earth?s weather and climate. Key TOPEX/Poseidon Facts Joint with France Mass: 2388 kg Power: 3,385 W Operating Life: Over 13 years, until October 9, 2005 Group: Platform_Details Entry_ID: TOPEX/POSEIDON Group: Platform_Identification Platform_Category: Earth Observation Satellites Short_Name: TOPEX/POSEIDON Long_Name: Topography Experiment/Poseidon End_Group Group: Platform_Associated_Instruments Short_Name: SSALT Short_Name: TMR Short_Name: LRA Short_Name: DORIS Short_Name: NRA Short_Name: TRSR End_Group Group: Orbit Orbit_Altitude: 1336 km Orbit_Inclination: 66 degrees Period: 112.4 minutes Repeat_Cycle: 10 days Perigee: 1,331 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/topex.html Online_Resource: http://science.hq.nasa.gov/missions/satellite_14.htm Online_Resource: http://topex-www.jpl.nasa.gov/ Sample_Image: http://sealevel.jpl.nasa.gov/gallery/spacecraft/gifs/BHT.jpg Group: Platform_Logistics Launch_Date: 1992-08-10 Launch_Site: KOUROU, FRENCH GUIANA Design_Life: 5 years Primary_Sponsor: NASA Primary_Sponsor: CNES End_Group End_Group New Value=TOPEX/Poseidon was an oceanography mission to monitor global ocean circulation, improve global climate predictions, and monitor events such as El Niño and ocean eddies. These data have greatly enhanced our understanding of the role of the ocean in the formation of Earth?s weather and climate. Key TOPEX/Poseidon Facts Joint with France Mass: 2388 kg Power: 3,385 W Operating Life: Over 13 years, until October 9, 2005 Group: Platform_Details Entry_ID: TOPEX/POSEIDON Group: Platform_Identification Platform_Category: Earth Observation Satellites Short_Name: TOPEX/POSEIDON Long_Name: Topography Experiment/Poseidon End_Group Group: Platform_Associated_Instruments Short_Name: SSALT Short_Name: TMR Short_Name: LRA Short_Name: DORIS Short_Name: NRA Short_Name: TRSR End_Group Group: Orbit Orbit_Altitude: 1336 km Orbit_Inclination: 66 degrees Period: 112.4 minutes Repeat_Cycle: 10 days Perigee: 1,331 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: https://sealevel.jpl.nasa.gov/missions/topex-poseidon/summary/ Online_Resource: https://eospso.nasa.gov/missions/topexposeidon Group: Platform_Logistics Launch_Date: 1992-08-10 Launch_Site: KOUROU, FRENCH GUIANA Design_Life: 5 years Primary_Sponsor: NASA Primary_Sponsor: CNES End_Group End_Group Date=2021-11-18 User Id=tstevens Entity=BroaderRelation Operation=INSERT User Note=Move Concepts System Note=add broader relation New Value=TOPEX/POSEIDON [e5eb6afb-5d3e-4767-ad08-5293c5b2d88b,826851] - Space-based Platforms [b39a69b4-c3b9-4a94-b296-bbbbe5e4c847,835875] TOPEX/Poseidon was an oceanography mission to monitor global ocean circulation, improve global climate predictions, and monitor events such as El Niño and ocean eddies. These data have greatly enhanced our understanding of the role of the ocean in the formation of Earth?s weather and climate.Key TOPEX/Poseidon FactsJoint with FranceMass: 2388 kgPower: 3,385 WOperating Life: Over 13 years, until October 9, 2005Group: Platform_Details Entry_ID: TOPEX/POSEIDON Group: Platform_Identification Platform_Category: Earth Observation Satellites Short_Name: TOPEX/POSEIDON Long_Name: Topography Experiment/Poseidon End_Group Group: Platform_Associated_Instruments Short_Name: SSALT Short_Name: TMR Short_Name: LRA Short_Name: DORIS Short_Name: NRA Short_Name: TRSR End_Group Group: Orbit Orbit_Altitude: 1336 km Orbit_Inclination: 66 degrees Period: 112.4 minutes Repeat_Cycle: 10 days Perigee: 1,331 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: https://sealevel.jpl.nasa.gov/missions/topex-poseidon/summary/ Online_Resource: https://eospso.nasa.gov/missions/topexposeidon Group: Platform_Logistics Launch_Date: 1992-08-10 Launch_Site: KOUROU, FRENCH GUIANA Design_Life: 5 years Primary_Sponsor: NASA Primary_Sponsor: CNES End_GroupEnd_Group 2025-04-28 17:55:56.0