05 25 07

George H Diller Kennedy Space Center, Fla 321-867-2468

STATUS REPORT: ELV-052507

EXPENDABLE LAUNCH VEHICLE STATUS REPORT

Mission: Dawn Location: Astrotech Space Operations Facility Launch Pad: 17-B Launch Vehicle: Delta II 7925-H Launch Date: June 30, 2007 Launch Time: 4:50:13 - 5:10:13 p m EDT

Solar array installation and deployment tests are scheduled to be completed Friday

The spacecraft is scheduled to move to the hazardous processing facility on May 28 Xenon for the Ion Propulsion System is scheduled to be loaded aboard June 1-2 Hydrazine, used for spacecraft control and maneuvering, will be loaded aboard June 6

The Delta II first stage, originally set for hoisting into the launcher on Wednesday, has been rescheduled for May 28 due to high wind conditions at Pad 17-B This will be followed next week by attachment of the nine solid rocket boosters

Mission: Phoenix Location: Payload Hazardous Servicing Facility Launch Pad: 17-A Launch Vehicle: Delta II 7925 Launch Date: Aug 3, 2007 Launch Time: 5:35:18 a m EDT

The spacecraft's flight software will be loaded aboard Friday

Guidance navigation and control system performance testing is scheduled for May 30-31

Previous status reports are available on the Web at:

http://www nasa gov/centers/kennedy/launchingrockets/status/2007

-end-

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