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Delta-II/Gravity-B probe launch from Vandenberg AFB, April 20, 2004


(Download a higher resolution picture by clicking on any picture below.)

The Gravity-B probe was launched from Vandenberg Air Force Base on April 20, 2004. It will verify whether the magnitude of warping of the space-time continuum caused by the rotation of the Earth is properly predicted by Einstein's General Theory of Relativity.

Delta-II launches Gravity-B probe from Vandenberg AFB on April 20, 2004 Six solid fuel boosters ignite and the Delta-II Rocket rises from the pad at 23 seconds after 9:57 A.M.

Delta-II launches Gravity-B probe from Vandenberg AFB on April 20, 2004

Delta-II launches Gravity-B probe from Vandenberg AFB on April 20, 2004

Delta-II launches Gravity-B probe from Vandenberg AFB on April 20, 2004

Delta-II launches Gravity-B probe from Vandenberg AFB on April 20, 2004 Three solid fuel boosters ignite one minute and ten seconds after launch as the Delta-II arcs over toward the south.

Delta-II launches Gravity-B probe from Vandenberg AFB on April 20, 2004 Two frame composite, wide-angle view of the departing rocket.

Delta-II launches Gravity-B probe from Vandenberg AFB on April 20, 2004 Three frame composite, wide-angle view of the departing rocket.

Eighty- two minutes after launch the Gravity-B probe was placed into the proper orbit.


Previous launches from Vandenberg AFB More Vandenberg AFB launch photography.


Link to Stanford's Gravity-B Probe web site.

Link to Boeing's Delta-II page.

Link to the Air Force Fact Sheet about the Delta-II.

The home page of the 30th Space Wing

Brian Webb's Space Archive Page provides launch schedule and ham radio information.



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Rocket Launches from Vandenberg Air Force Base

2011 Calendar

You can buy a 2011 calendar featuring my photographs of rocket launches from Vandenberg Air Force Base.

Lockett Books Calendar Catalog: Rocket Launches from Vandenberg Air Force Base

Lockett Books Calendar Catalog: Rocket Launches from Vandenberg Air Force Base

Photos of thirteen rocket launches from Vandenberg Air Force Base:

Pegasus-XL/Wide-Field Infra-red Explorer (WIRE) March 4, 1999
Atlas-IIAS/Terra December 18, 1999
Delta II/Gravity Probe B, April 20, 2004
Minotaur/Streak September 22, 2005
Titan IV/National Reconnaissance Office satellite, October 19, 2005
Minuteman III, February 16, 2006
Minuteman III, April 2, 2008
Target Launch Vehicle, September 24, 2008
Delta-II/GeoEye 1, September 6, 2008
Delta II/Jason 2, June 20, 2008
Delta II/COSMO-Skymed, October 24, 2008
Taurus/Orbiting Carbon Observatory, February 24, 2009
Delta-II/Worldview 2, October 28, 2009

Buy my Rocket Launches from Vandenberg Air Force Base: 2011 calendar at Lulu! Put a copy of the Rocket Launches from Vandenberg Air Force Base: 2011 Calendar in your Lulu.com shopping cart for $16.95.

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