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Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Geosat> ?p ?o }

• Geosat abstract "The GEOSAT (GEOdetic SATellite) was a U.S. Navy Earth observation satellite, launched on March 12, 1985 into an 800 km, 108° inclination orbit, with an orbital period of 23.07 days and a 330 pass orbit. The satellite carried a radar altimeter capable of measuring the distance from the satellite to sea surface with a relative precision of about 5 cm. The GM mission concluded September 30, 1986.After a classified Geodetic Mission (GM) for the Navy, GEOSAT's scientific Exact Repeat Mission (ERM) began on November 8, 1986 after being maneuvered into a 17.05 day, 244 pass repeat orbit. When the ERM ended in January 1990, due to failure of the two on-board tape recorders, more than three years of ERM data were collected and made available to the scientific community.The Geosat GM goal was to provide information on the marine gravity field. If the ocean surface were at rest, and to forcing such as tides or winds were acting on it, the water surface would lie along the geoid. To first order, the Earth shape is an oblate spheroid. Subsurface features such as seamounts create a gravitational pull, and features such as ocean trenches create lower gravity areas. Spatial variations in gravity exert influence on the ocean surface and thereby cause spatial structure in the geoid. The deviations of the geoid from the first order spheroid are on the order of ± 100m. By measuring the position of the water surface above the Earth center, the geoid is observed, and the gravity field can be computed through inverse calculations.The U.S. Navy declassified parts of the Geodetic Mission data in 1990 that covered a doughnut-shaped area of ocean that surrounds Antarctica between 60 and 72 degrees south latitude. In 1992, further parts of the Geodetic Mission data over the oceans south of 30 degrees south were released. The GEOSAT data for the entire global sea surface was declassified in July 1995 after the competition of the geodetic phase of ESA ERS-1 mission. These data were subsequently widely used to estimate ocean bathymetry along with additional satellite altimeters.Once the GM goal had been reached, the satellite still had a useful life. An opportunity existed to observe the next order physical process that affects the ocean surface. Currents, tides and wind forcing all create changes in water levels. While there are extreme waves and events (tsunamis and hurricane surge), typical ocean features would be considered large if the water level change caused by them were 1 m. Most areas of the world experience features of typical amplitude of 20 cm. The ERM established the satellite in an exact repeat orbit. The satellite would orbit the Earth, and after 17.05 days the satellite would return to the same point. The satellite was actively controlled through thrust maneuvers to maintain the exact repeat orbit to within 1 km of the predefined ground track. In this manner, the satellite could observe long term changes at the points along the ground track.".
• Geosat cosparId "1985-021A".
• Geosat thumbnail Geosat.jpg?width=300.
• Geosat wikiPageExternalLink geosat_handbook.
• Geosat wikiPageID "4176161".
• Geosat wikiPageLength "7849".
• Geosat wikiPageOutDegree "28".
• Geosat wikiPageRevisionID "662146505".
• Geosat wikiPageWikiLink 30th_parallel_south.
• Geosat wikiPageWikiLink 60th_parallel_south.
• Geosat wikiPageWikiLink 72nd_parallel_south.
• Geosat wikiPageWikiLink F.
• Geosat wikiPageWikiLink Category:Earth_observation_satellites.
• Geosat wikiPageWikiLink Category:Military_space_program_of_the_United_States.
• Geosat wikiPageWikiLink Category:Spacecraft_launched_in_1985.
• Geosat wikiPageWikiLink Earth_observation_satellite.
• Geosat wikiPageWikiLink European_Remote-Sensing_Satellite.
• Geosat wikiPageWikiLink Geocentric_orbit.
• Geosat wikiPageWikiLink Geodesy.
• Geosat wikiPageWikiLink Geoid.
• Geosat wikiPageWikiLink Ground_track.
• Geosat wikiPageWikiLink Low_Earth_orbit.
• Geosat wikiPageWikiLink Minotaur-C.
• Geosat wikiPageWikiLink Ocean_current.
• Geosat wikiPageWikiLink Oceanic_trench.
• Geosat wikiPageWikiLink Orbit_Insertion_Stage.
• Geosat wikiPageWikiLink Radar_altimeter.
• Geosat wikiPageWikiLink Radiometer.
• Geosat wikiPageWikiLink Seamount.
• Geosat wikiPageWikiLink Storm_surge.
• Geosat wikiPageWikiLink Taurus_(rocket).
• Geosat wikiPageWikiLink Tide.
• Geosat wikiPageWikiLink Tsunami.
• Geosat wikiPageWikiLink United_States_Navy.
• Geosat wikiPageWikiLink Vandenberg_AFB_Space_Launch_Complex_3.
• Geosat wikiPageWikiLink Vandenberg_Air_Force_Base.
• Geosat wikiPageWikiLinkText "GEOSAT".
• Geosat wikiPageWikiLinkText "GFO".
• Geosat wikiPageWikiLinkText "Geosat Follow-On".
• Geosat wikiPageWikiLinkText "Geosat".
• Geosat apsis "gee".
• Geosat cosparId "1985".
• Geosat hasPhotoCollection Geosat.
• Geosat imageCaption "Artist's interpretation of the Geosat satellite".
• Geosat launchDate "--03-13".
• Geosat launchRocket F.
• Geosat launchRocket Orbit_Insertion_Stage.
• Geosat launchSite Vandenberg_AFB_Space_Launch_Complex_3.
• Geosat launchSite Vandenberg_Air_Force_Base.
• Geosat missionDuration "5".
• Geosat missionType "Earth science".
• Geosat name "Geosat".
• Geosat operator United_States_Navy.
• Geosat orbitArgPeriapsis "276.8275".
• Geosat orbitEccentricity "0.00398".
• Geosat orbitEpoch "2013-12-09".
• Geosat orbitInclination "108.0596".
• Geosat orbitMeanAnomaly "131.8715".
• Geosat orbitMeanMotion "14.37442186".
• Geosat orbitPeriod "6036.0".
• Geosat orbitRaan "309.0682".
• Geosat orbitReference Geocentric_orbit.
• Geosat orbitRegime Low_Earth_orbit.
• Geosat orbitRevNumber "50565".
• Geosat satcat "15595".
• Geosat wikiPageUsesTemplate Template:Citation_needed.
• Geosat wikiPageUsesTemplate Template:For.
• Geosat wikiPageUsesTemplate Template:Infobox_spaceflight.
• Geosat wikiPageUsesTemplate Template:Orbital_launches_in_1985.
• Geosat wikiPageUsesTemplate Template:Reflist.
• Geosat wikiPageUsesTemplate Template:Space-based_meteorological_observation.
• Geosat subject Category:Earth_observation_satellites.
• Geosat subject Category:Military_space_program_of_the_United_States.
• Geosat subject Category:Spacecraft_launched_in_1985.
• Geosat hypernym Satellite.
• Geosat type ArtificialSatellite.
• Geosat type CelestialBody.
• Geosat type Place.
• Geosat type Satellite.
• Geosat type Science.
• Geosat type Location.
• Geosat type Place.
• Geosat type Thing.
• Geosat comment "The GEOSAT (GEOdetic SATellite) was a U.S. Navy Earth observation satellite, launched on March 12, 1985 into an 800 km, 108° inclination orbit, with an orbital period of 23.07 days and a 330 pass orbit. The satellite carried a radar altimeter capable of measuring the distance from the satellite to sea surface with a relative precision of about 5 cm.".
• Geosat label "Geosat".
• Geosat sameAs Geosat.
• Geosat sameAs Geosat.
• Geosat sameAs ژئوست.
• Geosat sameAs Geosat.
• Geosat sameAs Geosat.
• Geosat sameAs Geosat.
• Geosat sameAs Geosat.
• Geosat sameAs Geosat.
• Geosat sameAs Geosat.
• Geosat sameAs m.0bn80y.
• Geosat sameAs Q49959.
• Geosat sameAs Q49959.
• Geosat wasDerivedFrom Geosat?oldid=662146505.
• Geosat depiction Geosat.jpg.
• Geosat isPrimaryTopicOf Geosat.