Date: April 14th 2007

04 13 07

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

STATUS REPORT: ELV-041307

EXPENDABLE LAUNCH VEHICLE STATUS REPORT

Mission: AIM (Aeronomy of Ice in the Mesosphere) Launch Pad: Vandenberg Air Force Base, Calif Launch Vehicle: Pegasus XL (Orbital Sciences) Launch Date: April 25, 2007 Launch Time: 1:26:49 p m PDT (4:26:49 p m EDT)

NASA's AIM spacecraft was mated to the Pegasus XL rocket on April 4 An integrated flight simulation was successfully completed earlier this week Technicians began operations to install the Pegasus fairing around the AIM spacecraft, followed by black light inspection of the fairing and spacecraft The spacecraft umbilical was disconnected and re-routed to allow the payload fairing to move into the clean room

The Pegasus rocket with the AIM spacecraft is currently planned to be installed onto the transporter on April 16 The L-1011 carrier aircraft is slated to arrive at Vandenberg Air Force Base the following day The transport of Pegasus/AIM to the runway for mating operations with the L-1011 is scheduled for April 22

Mission: Dawn Launch Pad: Cape Canaveral Air Force Station, Fla Launch Vehicle: Delta II 7925-H Launch Date: NET June 30, 2007 Launch Time: 15:13:15 p m EDT

NASA's Dawn spacecraft arrived at Astrotech Space Operations in Titusville, Fla , on Tuesday at 9 a m for final prelaunch and processing activities The spacecraft was cleaned and inspected after removal of the access panels

Dawn's mission will be the first time a spacecraft will orbit two planetary bodies on a single voyage: asteroid Vesta and the dwarf planet Ceres The Dawn spacecraft is managed by NASA's Jet Propulsion Laboratory in Pasadena, Calif

NASA's Launch Services Program at Kennedy Space Center and the United Launch Alliance are responsible for the launch of the Delta II

Previous status reports are available on the Web at:

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

-end-

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