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George H. Diller
Kennedy Space Center, Fla.

Expendable Launch Vehicle Status Report
Mission: Dawn
Location: Astrotech Space Operations Facility
Launch Pad: 17-B
Launch Vehicle: Delta II 7925-H
Launch Date: Target June 30, 2007
Launch Window: 5:13:15 p.m. EDT

  • Preparations are under way for moving the Dawn spacecraft to an adjacent clean room high bay for solar array integration.

  • Next week, the two spacecraft solar arrays, each consisting of four panels, will be attached to the Dawn spacecraft and undergo deployment testing. A solar array lighting test also will be performed before the arrays are stowed for flight. This activity is scheduled for May 21-24.

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

  • The Delta II first stage will be hoisted into the launcher at Pad 17-B on May 23 and attachment of the nine solid rocket boosters will begin.

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 dry spin test of the spacecraft was successfully completed. A heat shield deployment test also was successfully conducted Wednesday.

  • The electrical power system final performance test was completed Thursday.

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

  • Compatibility testing with the Deep Space Network is scheduled for May 23-25.

  • In Hangar AO at Cape Canaveral Air Force Station, gimbal slew tests of the Delta II first-stage main engine will be conducted next week. These are main engine steering checks using the first-stage hydraulic systems.

Previous status reports are available on the Web at:

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