Delta II | Gravity Probe B
Launch information
Favourite EmbedMission description
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.
Launch status
Launch status information for space mission ‘Delta II | Gravity Probe B’.
Success
Status: Launch Successful
Class: normal
Launch T0: April 20, 2004, 4:57 p.m.
Timezone: America/Los_Angeles
Launch authority
Details about the the rocket, its target orbit and the launch pad location.
Mission |
Gravity Probe B (LEO) |
|---|---|
Launcher |
United States Air Force |
Rocket |
Delta II |
Location |
Vandenberg SFB, CA, USA |
Pad |
Space Launch Complex 2W |
Type |
Astrophysics |
Orbit |
Low Earth Orbit (LEO) |
Satellites on-board
Satellites on-board the space mission ‘Delta II | Gravity Probe B’ are identified by cross checking database entries for launches and satellites. Results could be inaccurate from time to time.
Launch statistics
Tracking key statistics for space mission ‘Delta II | Gravity Probe B’, classified in stats relative to the specific mission launch year or to all-time values.
Orbital Launch
#4643
To this date
Location Launch
#617
To this date
Pad Launch
#71
To this date
Agency Launch
#1060
To this date
Orbital Launch
#14
Year 2004
Location Launch
#1
Year 2004
Pad Launch
#1
Year 2004
Agency Launch
#3
Year 2004
Latest news about the launch
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