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Jan. 10, 1995
 
STATUS REPORT : S-19950110
 
 
NASA's Space Shuttle Processing Status Report
 
 
MISSION: STS-63 -- MIR RENDEZVOUS, SPARTAN and SPACEHAB-3

VEHICLE: Discovery/OV-103
LOCATION: Vehicle Assembly Building
TARGET LAUNCH DATE/TIME: Feb. 2, 1995 at 12:51 a.m. EST
LAUNCH WINDOW: 5 minutes
TARGET KSC LANDING DATE/TIME: Feb. 10 at 7:05 a.m.
MISSION DURATION: 8 days, 6 hours, 13 minutes
CREW SIZE: 6
ORBITAL ALTITUDE and INCLINATION: 196-245 statute miles/51.60 degrees

NOTE: Managers decided last night to roll out the Shuttle Discovery to pad 39 B a day early. First motion is scheduled for 11:30 a.m. today. The decision to roll early was made when the pressure in a right hand orbital maneuvering system pod oxidizer manifold dropped from 150 psi to about 15 psi. The manifold serves 4 of the orbital maneuvering system thrusters on the right hand pod. One of these thrusters (R3A) has a documented very minor leak which was managed and controlled during the past two flights. However, from the time the orbiter left the Orbiter Processing Facility (Jan. 5) to the time it was first powered up in the Vehicle Assembly Building, the manifold pressure dropped significantly. Engineers think this radical drop was caused by cold weather effects on the thruster's seal this past weekend. Last night, the manifold pressure was brought up to about 65 psi in the Vehicle Assembly Building, the maximum available with equipment in the Vehicle Assembly Building. Once at the pad, the manifold pressure can be returned to the standard 150 psi. Low pressure in the manifold over a period of time may cause other thruster seals to dry-out and leak. Later this week, engineers will decide if thruster R3A must be replaced.

IN WORK TODAY:
Rollout to pad 39B scheduled for 11:30 a.m. today

WORK COMPLETED:
Shuttle interface verification tests

WORK SCHEDULED:
Launch pad validations
Main engine preparations and frequency response test

KEY OPERATIONAL MILESTONES SCHEDULED FOR JANUARY (dates are targeted only):
Terminal Countdown Demonstration Test (Jan. 17-19)
Flight Readiness Review (Jan. 18)
Hot fire auxiliary power unit no. 2 (Jan. 22)
Countdown begins (4 p.m. Jan. 29)

MISSION: STS-67 -- Astro-2

VEHICLE: Endeavour/OV-105
LOCATION: OPF bay 1
TARGET LAUNCH PERIOD: early March
APPROX. LAUNCH TIME: very early morning
LAUNCH WINDOW: 2 hours, 3 minutes
KSC LANDING DATE/TIME: TBD
MISSION DURATION: 15 days, 13 hours
CREW SIZE: 7
ORBITAL ALTITUDE and INCLINATION: 218 statute miles/28.45 degrees

IN WORK TODAY:
Aft engine compartment close-outs
Preparations to remove and repair a signal conditioner on the right hand orbital maneuvering system pod

WORK COMPLETED:
Crew equipment integration test
Orbiter/payload interface verification test
Install main engine no. 3
Main propulsion system verification checks

MISSION: STS-71 -- 1st MIR DOCKING

VEHICLE: Atlantis/OV-104
LOCATION: OPF bay 3
TARGET LAUNCH PERIOD: late May
APPROX. LAUNCH TIME: early morning
LAUNCH WINDOW: 5 minutes
KSC LANDING DATE/TIME: TBD
MISSION DURATION: 9 days, 20 hours
CREW SIZE: 7 up, 8 down
ORBITAL ALTITUDE and INCLINATION: 196-245 statute miles/51.60 degrees

NOTE: Workers this week will remove and replace six ball screws on the orbiter docking system (ODS) in the Vehicle Assembly Building. The work will not impact the schedule to install the ODS in Atlantis' payload bay next month.

IN WORK TODAY:
Main propulsion system verification checks
Mechanical hook-ups of fuel cell no. 2

WORK COMPLETED:
Remove and replace fuel cell no. 2
Remove space shuttle main engines

 

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