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Gravity Probe B

Delta II

United States Air Force

Launch Status
Success

Mission

Gravity Probe B

Type: Astrophysics

Gravity Probe B (GP-B) was a satellite-based experiment to test two unverified predictions of general relativity: the geodetic effect and frame-dragging. This was to be accomplished by measuring, very precisely, tiny changes in the direction of spin of four gyroscopes contained in an Earth-orbiting satellite at 650 km (400 mi) altitude, crossing directly over the poles.

Location

Space Launch Complex 2W

Vandenberg SFB, CA, USA

698 rockets have launched from Vandenberg SFB, CA, USA.

Space Launch Complex 2W, Vandenberg SFB, CA, USA

Rocket

Delta II 7920-10C – United Launch Alliance

Family: Delta
Length: 38.7 m
Diameter: 2.4 m

Low Earth Orbit Capacity: 5959 kg

The Delta II 7920-10C was manufactured by United Launch Alliance with the first launch on . Delta II 7920-10C has 17 successful launches and 0 failed launches with a total of 17 launches. Delta II is an American space launch system developed by McDonnell Douglas, now part of the Delta rocket family operated by United Launch Alliance. With more than 150 missions and a nearly perfect track record, Delta II has established itself as one of the most successful orbital launch systems.

Agency

United States Air Force

Type: Government
Abbreviation: USAF

Country: USA

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