GEOSAT 2C DRIVER

An opportunity existed to observe the next order physical process that affects the ocean surface. Spatial variations in gravity exert influence on the ocean surface and thereby cause spatial structure in the geoid. Navy on 30 June Payloads deployed from other spacecraft are denoted in brackets. For generic geosats, see Geosynchronous satellite. By using this site, you agree to the Terms of Use and Privacy Policy. Retrieved from ” https:

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Views Read Edit View history. Archived from the original PDF on An opportunity existed to observe the next order physical process that affects the ocean surface. Subsurface features geoeat as seamounts create a gravitational pull, and features such as ocean trenches create lower gravity areas.

Navy on 30 June Spatial variations in gravity exert influence on the ocean surface and thereby cause spatial structure in the geoid.

GFZ SEAVAR precise orbits of altimetry satellites ERS-1, ERS-2, GEOSAT – News – Earth Online – ESA

Orbital meteorological and remote sensing systems. The ERM established the satellite in an exact repeat orbit.

Infurther parts of the Geodetic Mission data over the oceans south of 30 degrees south were released. In addition, GFO carried a GPS receiver which was never used operationallyDoppler receivers, and laser retro-reflectors for orbit determination. Retrieved from ” https: March 13, To first order, the Earth shape is an oblate spheroid.

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From Wikipedia, the free encyclopedia. Geisat launch failures are listed in italics.

When the ERM ended in Januarydue to failure of the two on-board tape geosatt, more than three years of ERM data were collected and made available to the scientific community. The initial phase was an month classified Geodetic Mission GM have a ground-track with a nearday repeat with closure to within 50 kilometers.

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Navy declassified parts of the Geodetic Mission data in that covered a doughnut-shaped area of ocean that surrounds Antarctica between 60 and 72 degrees south latitude. By using this site, you agree to the Terms of Use and Privacy Policy. Artist’s interpretation of the Geosat satellite.

While there are extreme waves and events tsunamis and hurricane surgetypical ocean features would be considered large if the water level change caused by them were 1 m. Despite a series of system failures aboard the spacecraft, controllers were able to successfully lower GFO to a disposal orbit and shut it down on November 25, 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.

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Once the GM goal had been reached, the satellite still had a useful life. Payloads deployed from other spacecraft are denoted in brackets.

Geo/SAT 2 – Remote Sensing – GIS Instructional Modules

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. This page was last edited on 20 Mayat In this manner, the satellite could observe long term changes at the points along the ground track.

For generic geosats, see Geosynchronous satellite. Currentstides and wind geosst all create changes in water levels. Manned flights are indicated in bold text.

The satellite would orbit the Earth, and after These data were subsequently widely used to estimate ocean bathymetry along with additional satellite altimeters. The Geosat GM goal was to provide information on the marine gravity field.