05 11 07

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

STATUS REPORT: ELV-051107

EXPENDABLE LAUNCH VEHICLE STATUS REPORT

Mission: Dawn Location: Astrotech Space Operations Facility Launch Pad: 17-B Launch Vehicle: Delta II 7925-H Launch Date: NET June 30, 2007 Launch Time: 15:13:15 p m EDT

Mission system performance testing continues and is planned to finish Friday

A test of the spacecraft's primary communications antenna is scheduled for May 21

The spacecraft solar arrays will be attached and deployed May 21 - 24

The spacecraft will be moved to Astrotech's Hazardous Processing Facility for fueling on May 26

Mission: Phoenix Location: Payload Hazardous Servicing Facility Launch Pad: 17-A Launch Vehicle: Delta II 7925 Launch Date: Aug 3, 2007 Launch Time: 15:35:18 a m EDT

Spacecraft spin-balance testing is under way

The spacecraft will be powered to begin testing on May 14

The heat shield will be installed on May 15, and a separation test will then be performed

The spacecraft's electrical power system will undergo a final performance test on May 17

The flight software will be loaded aboard the spacecraft on May 21

Previous status reports are available on the Web at:

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

-end-

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