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- The mission of GEOS 3 (Geodynamics Experimental Ocean Satellite) was to provide the stepping stone between the National Geodetic Satellite Program (NGSP) and the Earth and Ocean Physics Application Program. It provided data to refine the geodetic and geophysical results of the NGSP and served as a test for new systems. A major achievment was the flight of a radar altimeter. Further mission objectives: intercomparison of tracking systems, investigation of solid-earth dynamic phenomena through precision laser tracking, refinement of orbit determination techniques, determination of interdatum ties and gravity models, and support of the calibration and position determination of NASA Spaceflight Tracking and Data Network (STDN) S-band tracking stations. For more details, see special reports on the GEOS 3 in J. Geophys. Res., v. 84, n. B8, 1979. __________ Taken from the NSSDC System for Information Retrieval and Storage (SIRS). For more information contact the NSSDC Coordinated Request and User Support Office, 301-286-6695 (NASA Goddard Space Flight Center, Code 933.4, Greenbelt, Maryland 20771, USA) Group: Platform_Details Entry_ID: GEOS-3 Group: Platform_Identification Platform_Category: Earth Observation Satellites Platform_Series_or_Entity: GEOS (Geodetic Earth Orbiting Satellite) Short_Name: GEOS-3 Long_Name: Geodetic Earth Orbiting Satellite-3 End_Group Group: Synonymous_Platform_Names Short_Name: GEOS-3 End_Group Group: Platform_Associated_Instruments Short_Name: DOPPLER BEACONS Short_Name: ALTIMETERS End_Group Group: Orbit Orbit_Inclination: 115 deg Period: 102 min Perigee: 824 km End_Group Creation_Date: 2007-09-26 Online_Resource: http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/geos_general.html Sample_Image: http://ilrs.gsfc.nasa.gov/images/geos3.gif Group: Platform_Logistics Launch_Date: 1975-04-09 Primary_Sponsor: NASA End_Group End_Group
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