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Magsat
Magsat
Magsat
Credit: Manufacturer Image
American earth magnetosphere satellite. Measured near-Earth magnetic field and crustal anomalies. Research satellite built by Johns Hopkins University Applied Physics Laboratory (APL) for NASA, USGS, USA. Launched 1979.

Status: Operational 1979. First Launch: 1979-10-30. Last Launch: 1979-10-30. Number: 1 . Gross mass: 181 kg (399 lb).

NASA NSSDC Master Catalog Description

The Magsat project was a joint NASA/United States Geological Survey (USGS) effort to measure near-earth magnetic fields on a global basis. Objectives included obtaining an accurate description of the earth's magnetic field, obtaining data for use in the update and refinement of world and regional magnetic charts, compilation of a global crustal magnetic anomaly map, and interpretation of that map in terms of geologic/geophysical models of the earth's crust. The spacecraft was launched into a low, near-polar, orbit by the Scout vehicle. The basic spacecraft was made up of two distinct parts: the instrument module that contained a vector and a scalar magnetometer and their unique supporting gear; and the base module that contained the necessary data-handling, power, communications, command, and attitude-control subsystems to support the instrument module. The base module complete with its subsystems was comprised of residual Small Astronomy Satellite (SAS-C) hardware. The magnetometers were deployed after launch to a position 6 m behind the spacecraft. At this distance, the influence of magnetic materials from the instrument and base module (chiefly from the star cameras) was less than 1 nT. Sixteen complete vector magnetic field measurements and eight scalar measurements were obtained every second.


More at: Magsat.

Family: Earth, Magnetosphere sat. Country: USA. Launch Vehicles: Scout, Scout G-1. Launch Sites: Vandenberg, Vandenberg SLC5. Agency: NASA. Bibliography: 2, 279, 6, 6670, 12786.

1979 October 30 - . 14:16 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout G-1.
  • Magsat - . Payload: AEM 3. Mass: 181 kg (399 lb). Nation: USA. Agency: NASA Greenbelt. Class: Earth. Type: Magnetosphere satellite. Spacecraft: Magsat. Decay Date: 1980-06-11 . USAF Sat Cat: 11604 . COSPAR: 1979-094A. Apogee: 561 km (348 mi). Perigee: 352 km (218 mi). Inclination: 96.8000 deg. Period: 93.70 min. Measured near-Earth magnetic field and crustal anomalies. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). .


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