Date: May 24th 2008

May 23, 2008

George H Diller Kennedy Space Center, Fla 321-867-2468 george h diller@nasa gov

STATUS REPORT: ELV-052308

EXPENDABLE LAUNCH VEHICLE STATUS REPORT

Mission: GLAST (Gamma-ray Large Area Space Telescope) Location: Astrotech payload processing facility Launch Vehicle: Delta II 7920-H (United Launch Alliance) Launch Pad: 17-B Launch Date: No Earlier Than June 3, 2008 Launch Window: 11:45 a m - 1:40 p m EDT

The rollout of the GLAST spacecraft from Astrotech to Pad 17-B began shortly after midnight on May 17, arriving at Pad 17-B on Cape Canaveral Air Force Station at 5 a m The spacecraft was then hoisted atop the Delta II at 7:30 a m Spacecraft state of health checks are successfully complete

Thursday the Flight Program Verification was conducted This is an electrical and mechanical test of the Delta II and GLAST working together as a single integrated system during countdown and launch milestones Once this test is complete, spacecraft closeouts will begin GLAST will be encapsulated into the Delta II fairing on May 27

Mission: OSTM/Jason-2 Location: Astrotech payload processing facility, Vandenberg Air Force Base Launch Vehicle: Delta II 7320 (United Launch Alliance) Launch Pad: Space Launch Complex 2, Vandenberg Air Force Base Launch Date: June 15, 2008 Launch Window: 1:47 - 1:56 a m PDT

At the Astrotech payload processing facility on north Vandenberg, fueling of the OSTM/Jason-2 spacecraft was successfully completed on May 19, and the tanks were pressurized the following day Spacecraft closeouts are now under way Next week, the spacecraft will be weighed and mated to the Delta II payload attach fitting On June 1, OSTM/Jason-2 will be installed into the payload transportation canister and then moved to the launch pad the following day

At Space Launch Complex 2, also on May 19, liquid oxygen was loaded aboard the first stage to check the cryogenic systems of the first stage for leaks This test also served as a countdown dress rehearsal for the Delta II launch team The following day, a simulated flight test was conducted This was an electrical and mechanical test of the Delta II that exercised all of the launch vehicle systems as they will work after liftoff during the rocket's ascent to orbit

Previous status reports are available on the Web at:

http://www nasa gov/centers/kennedy/launchingrockets/status/2008

-end-

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