Kennedy Space Center, Fla.
Sept. 29, 1995
NASA's Space Shuttle Processing Status Report
KENNEDY SPACE CENTER SPACE SHUTTLE STATUS REPORT
FRIDAY, SEPTEMBER 29, 1995 (11:30 AM EDT)
MISSION: STS-73 -- U.S. MICROGRAVITY LABORATORY-2
LOCATION: Pad 39B
TARGET LAUNCH DATE/TIME: Oct. 5 at 9:40 a.m. EDT (no earlier than)
LAUNCH WINDOW: 2 hours, 30 minutes
TARGET KSC LANDING DATE/TIME: Oct. 21 at 7:35 a.m.
MISSION DURATION: 15 days, 21 hours, 55 minutes
ORBITAL ALTITUDE and INCLINATION: 172 statute miles/39 degrees
NOTE: Following the postponement of Columbia’s launch yesterday, work at Pad 39B continues on schedule to secure the vehicle and perform extended scrub turnaround operations. Off load of cryogenic reactants from the onboard storage tanks is complete and later this afternoon operations will begin to access the aft engine compartment. Tomorrow, workers will remove the faulty main fuel valve from the no. 1 engine and ship it to Canoga Park, Calif., for failure analysis testing. The replacement valve will be installed late Saturday. On Sunday, the flight readiness test and helium signature test will be conducted on the engine and the main propulsion system. Pending results of these tests, the countdown is scheduled to begin again at the T-43 hour mark at 4 a.m. Monday. This leads to a rescheduled launch on Thursday, Oct. 5. The 2 1/2 hour window opens at 9:40 a.m.
The mid-deck experiments aboard Columbia have been removed and operations to service the USML-2 spacelab experiments in the orbiter’s payload bay will start this afternoon.
STS-73 Commander Ken Bowersox, Mission Specialist Kathryn Thornton and Payload Specialist Albert Sacco, returned to JSC yesterday. Pilot Kent Rominger, Mission Specialists Michael Lopez-Alegria and Catherine Coleman, and Payload Specialist Fred Leslie are now planning to return to JSC tomorrow. The STS-73 crew will arrive back at KSC early next week.
IN WORK TODAY:
* Access aft engine compartment
* Extended scrub turnaround operations
* Service spacelab experiments
* Off load cryogenic reactants from external tank and from onboard
KEY OPERATIONAL MILESTONES:
* Remove and replace faulty main fuel valve on engine no. 1 (Saturday)
* Flight readiness test and helium signature test (Sunday)
* Close-out aft engine compartment (Monday)
* Begin countdown (4 a.m. Monday)
* STS-73 crew arrival at KSC (Monday or Tuesday)
* Spacelab final stowage operations (Tuesday)
* Begin cryogenic loading of external tank for flight (1:20 a.m. Thursday)
MISSION: STS-74 -- 2nd MIR DOCKING (Docking Module)
LOCATION: Orbiter Processing Facility bay 2
TARGET LAUNCH DATE/TIME: Nov. 1 at 11:51 a.m. EST
LAUNCH WINDOW: 6 minutes
TARGET MIR DOCKING DATE: Nov. 4
TARGET KSC LANDING DATE/TIME: Nov. 9 at 9 a.m.
MISSION DURATION: 7 days, 21 hours
CREW SIZE: 5
ORBITAL ALTITUDE and INCLINATION: 196-245 statute miles/51.6 degrees
NOTE: Operations continue on schedule to prepare Atlantis for launch on Nov. 1. Today, purge disconnects and close-outs of the crew module are in work. Tomorrow, the vehicle will be mounted on the orbiter transporter for roll to the Vehicle Assembly Building at about 9 a.m. next Monday. In the VAB, Atlantis will be lifted to a vertical position and mated to the external tank and solid rocket boosters. Rollout to Pad 39A is set for Monday Oct. 9.
KEY OPERATIONAL MILESTONES (dates are target only):
* Roll to Vehicle Assembly Building (9 a.m. Monday)
* Move to Pad 39A (Oct. 9)
* Terminal Countdown Demonstration Test (Oct. 12-13)
* Flight Readiness Review (Oct. 19)
MISSION: STS-72 -- SFU-Retrieval & OAST-Flyer
LOCATION: Orbiter Processing Facility bay 3
TARGET LAUNCH DATE/TIME: Jan. 11 at 5:04 a.m. EST
LAUNCH WINDOW: 38 minutes
TARGET KSC LANDING DATE/TIME: Jan. 20 at 3:14 a.m.
MISSION DURATION: 8 days, 22 hours, 11 minutes
CREW SIZE: 6
ORBITAL ALTITUDE and INCLINATION: 184 statute miles/28.45 degrees
NOTE: Post-mission servicing of Endeavour continues in OPF bay 3. Hypergolic reactant deservicing will begin on Saturday. Next week the main engines will be removed.
DISCOVERY/OV-103 -- Orbiter Maintenance Down Period
NOTE: Discovery, riding on top of the 747 Shuttle Carrier Aircraft, departed Salt Lake City yesterday afternoon and arrived at Palmdale, Calif., at about 4 p.m. EDT. Discovery will spend nine months undergoing about 100 modifications including the addition of an external airlock for missions to the international Space Station. For additional details, please refer to KSC Release No. 94-95.
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