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| power = | launch_date = UTC | launch_rocket = Delta 1410 | launch_site = Vandenberg SLC-2W | launch_contractor = NASA | disposal_type = | deactivated = July 1979 | decay_date = | orbit_epoch = 14 January 2014, 03:51:02 UTC | orbit_reference = Geocentric | orbit_regime = Low Earth | orbit_periapsis = | orbit_apoapsis = | orbit_inclination = 114.98 degrees | orbit_semimajor = | orbit_eccentricity = 0.001273 | orbit_period = 101.52 minutes | apsis = gee | instruments = }} GEOS-3, or Geodynamics Experimental Ocean Satellite 3, or GEOS-C, was the third and final satellite as part of NASA's Geodetic Earth Orbiting Satellite/Geodynamics Experimental Ocean Satellite program (NGSP) to better understand and test satellite tracking systems.〔(【引用サイトリンク】url=https://directory.eoportal.org/web/eoportal/satellite-missions/g/geos-nasa )〕 For, GEOS mission 1 and 2, GEOS referred to Geodetic Earth Orbiting Satellite but was changed to Geodynamics Experimental Ocean Satellite for the GEOS-3 satellite〔 == Introduction == The satellite mission was designed to further an understanding of the earth’s gravitational field, size and shape of the terrestrial geoid, deep ocean tides, sea state, current structure, crustal structure, solid earth dynamics, and remote sensing technology. Jerome Rosenburg at NASA Headquarters initiated the GEOS-3 project in 1970.〔 The project was to serve as a stepping stone between the GEOS program and the emerging NASA Earth and Ocean Physics Application Program.〔 GEOS-1 and GEOS-2 had provided useful information about the structure of the earth’s gravitational field, but new technology was deemed necessary to gain a further understanding.〔 The project was initially cancelled due to budgetary concerns after an initial 1-year study, but was re-instated in late 1971.〔 The satellite was launched in April 9, 1975 and remained operational until late July 1979.〔(【引用サイトリンク】url=http://podaac.jpl.nasa.gov/GEOS-3 )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「GEOS-3」の詳細全文を読む スポンサード リンク
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