Aug 8, 2008

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

STATUS REPORT: ELV-080808

EXPENDABLE LAUNCH VEHICLE STATUS REPORT

Mission: IBEX (Interstellar Boundary Explorer) Launch Vehicle: Pegasus XL (Orbital Sciences) Launch Facility: Reagan Test Site, Kwajalein Pacific Atoll Launch Date: Oct 5, 2008 Launch Window: 12:42 p m - 12:45 p m EDT (04:42 a m - 04:45 a m local Kwajalein time)

At Vandenberg Air Force Base in California this week, the IBEX spacecraft is undergoing testing of its science instruments On Monday, Aug 11, the spacecraft will be fueled Meanwhile, the upper stage motor was spin-balanced on Aug 7 This will be followed by spacecraft spin balancing on Aug 14 On Aug 15, IBEX will be mated to the upper stage, and the integrated stack spin-balanced the following day

At the Orbital Sciences launch vehicle hangar, prelaunch processing of the Pegasus XL rocket continues on schedule Mating of the second and third stages is under way Mating of the first and second stages is scheduled for next week

The L-1011 carrying the Pegasus XL rocket with IBEX is currently planned to depart from Vandenberg on Sept 25 After a stop in Hawaii, the flight will continue and arrive at the Reagan Test Site at Kwajalein Atoll in the south Pacific on Sept 26

For information about IBEX and its mission, visit:

http://www nasa gov/ibex

Previous status reports are available at:

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

-end-

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