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Solwind

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Solwind Credit: Manufacturer Image

Status: Operational 1979. First Launch: 1979-02-24. Last Launch: 1979-02-24. Number: 1 . Gross mass: 1,331 kg (2,934 lb).

• Contract for Space Test Program Flight P78-1. - . Spacecraft Bus: Space Test Program Payloads. Spacecraft: Solwind. Effective on this date, Ball Brothers Research Corporation was awarded a $10.3 million contract to develop a space vehicle system for Space Test Program Flight P78-1..

• Solwind (P 78-1) - . Payload: P 78-1. Mass: 1,331 kg (2,934 lb). Nation: USA. Agency: USN. Class: Earth. Type: Magnetosphere satellite. Spacecraft Bus: Space Test Program Payloads. Spacecraft: Solwind. Decay Date: 1985-09-30 . USAF Sat Cat: 11278 . COSPAR: 1979-017A. Apogee: 317 km (196 mi). Perigee: 310 km (190 mi). Inclination: 97.80 deg. Period: 90.80 min.

  Atlas booster 27F successfully launched Space Test Program Flight P78-1 from Space Launch Complex 3W, Vandenberg AFB, California. The primary payload on the spacecraft was a gamma spectrometer sponsored by the Defense Advanced Research Projects Agency (DARPA). Ionosphere and magnetosphere studies; destroyed on 13 September 1985 (while still functioning) as part of an American ASAT test.

• First US ASAT intercept - . Nation: USA. Agency: USAF. Spacecraft: Solwind. Apogee: 500 km (310 mi). Successful ASAT intercept test; rammed and destroyed the Solwind P78-1 satellite..