EXPENDABLE LAUNCH VEHICLES STATUS REPORT

MISSION: Deep Impact LAUNCH VEHICLE: Delta II 7925 LAUNCH PAD: Pad 17-B Cape Canaveral Air Force Station LAUNCH DATE: Jan 12, 2005 LAUNCH WINDOW: 1:08:20 p m and 1:48:04 p m EST instantaneous

The launch of the Deep Impact spacecraft has been officially rescheduled on the Eastern Range for Jan 12 There are two instantaneous launch opportunities that day, at 1:08:20 p m and 1:48:04 p m EST

Work to remove and replace the Delta II inter-stage adapter has been completed The second stage was removed from the vehicle on Dec 15, the inter-stage adapter removed on Dec 16, a new inter-stage adapter installed on Dec 17, and the second stage re-installed on Dec 18

In Deep Impact processing activities at the Astrotech Space Operations facility located near Kennedy Space Center, the hydrazine fueling operations began on Monday, Dec 19, and are being completed today The solar arrays will be stowed for flight on Dec 28 and the spacecraft will be weighed Mating to the payload attach fitting and upper stage booster occurs Dec 29-30

At Launch Pad 17-B, the next major launch vehicle milestone is the guidance and control system check that occurs Dec 28 The Flight Simulation, a plus count that exercises all of the systems on the vehicle as they will occur during powered flight, is scheduled for Dec 29

The Deep Impact spacecraft is scheduled to be transported to Pad 17-B on Jan 3 and mated to the Boeing Delta II rocket The Flight Program Verification, the major integrated test with the Delta II, occurs on Dec 30 The Delta II payload fairing will be installed around the Deep Impact spacecraft on Jan 7

The overall Deep Impact mission management for this Discovery class program is conducted by the University of Maryland in College Park, Md Deep Impact project management is handled by the Jet Propulsion Laboratory in Pasadena, Calif The spacecraft was built for NASA by Ball Aerospace and Technologies Corporation

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