Encyclopedia Astronautica
Geosat


American earth resources radar satellite. One launch, 1985.03.13. Geosat was a US Navy satellite designed to measure sea surface heights to within 5 cm.

After a one-and-a-half year long classified mission for the Navy, Geosat's scientific Exact Repeat Mission (ERM) began on November 8, 1986. When the ERM ended in January 1990 (due to failures of both on-board tape recorders), more than three years of precise altimeter data were available to the scientific community. Spacecraft: Gravity gradient stabilized. Two tape recorders. Payload: Radar altimeter to measure sea surface height.

AKA: Geodetic Satellite.
Gross mass: 635 kg (1,399 lb).
First Launch: 1985.03.13.
Number: 1 .

More... - Chronology...


Associated Countries
See also
  • Atlas The Atlas rocket, originally developed as America's first ICBM, was the basis for most early American space exploration and was that country's most successful medium-lift commercial launch vehicle. It launched America's first astronaut into orbit; the first generations of spy satellites; the first lunar orbiters and landers; the first probes to Venus, Mars, Mercury, Jupiter, and Saturn; and was America's most successful commercial launcher of communications satellites. Its innovative stage-and-a-half and 'balloon tank' design provided the best dry-mass fraction of any launch vehicle ever built. It was retired in 2004 after 576 launches in a 47-year career. More...

Associated Launch Vehicles
  • Atlas The Atlas rocket, originally developed as America's first ICBM, was the basis for most early American space exploration and was that country's most successful medium-lift commercial launch vehicle. It launched America's first astronaut into orbit; the first generations of spy satellites; the first lunar orbiters and landers; the first probes to Venus, Mars, Mercury, Jupiter, and Saturn; and was America's most successful commercial launcher of communications satellites. Its innovative stage-and-a-half and 'balloon tank' design provided the best dry-mass fraction of any launch vehicle ever built. It was retired in 2004 after 576 launches in a 47-year career. More...
  • Atlas E American intercontinental ballistic missile. Initial fully operational version of Atlas ICBM. Differed in guidance system from Atlas F. Deployed as missiles from 1960 to 1966. After retirement, the ICBM's were refurbished and used over twenty years as space launch vehicles. More...

Associated Manufacturers and Agencies
  • APL American manufacturer of rockets and spacecraft. Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, Laurel, Maryland, USA. More...
  • USN American agency overseeing development of rockets, spacecraft, and rocket engines. USN Joint Task Force 7, USA. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: here.
  • Lockheed Martin Coporation, Atlas Family Fact Sheets, September 1998.. Web Address when accessed: here.
  • McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: here.

Associated Launch Sites
  • Vandenberg Vandenberg Air Force Base is located on the Central Coast of California about 240 km northwest of Los Angeles. It is used for launches of unmanned government and commercial satellites into polar orbit and intercontinental ballistic missile test launches toward the Kwajalein Atoll. More...
  • Vandenberg SLC3W Delta, Atlas launch complex. First designated LC1-1 and used to launch Atlas Agena B with Samos payloads. After Samos cancellation, rebuilt in 1963 to support launch of KH-4 Corona spysats atop Thor-Agena. Refurbished in 1973 to accomodate surplus Atlas ICBM's in space launch role. More...

Geosat Chronology


1985 March 13 - . 02:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Atlas. Launch Vehicle: Atlas E/OIS. LV Configuration: Atlas E/OIS 41E.
  • Geosat - . Mass: 635 kg (1,399 lb). Nation: USA. Agency: USN. Class: Earth. Type: Earth resources radar satellite. Spacecraft: Geosat. USAF Sat Cat: 15595 . COSPAR: 1985-021A. Apogee: 779 km (484 mi). Perigee: 775 km (481 mi). Inclination: 108.1000 deg. Period: 100.40 min. Summary: Ocean sea height mapping. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

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