MISSION: STS-83 -- Microgravity Science Laboratory-1 (image)

• VEHICLE: Columbia/OV-102 (image)
• LOCATION: Orbiter Processing Facility bay 1
• LAUNCH DATE/TIME: April 4 at 2:20:32 p.m. EST
• KSC LANDING DATE/TIME: April 8 at about 2:33 p.m. EDT
• MISSION DURATION: 3 days, 23 hours, 12 minutes
• CREW: Halsell, Still, Voss, Thomas, Gernhardt, Linteris, Crouch (image)

NOTE: Columbia's power reactant storage distribution system is being drained of cryogenics today. Strong backs will be installed today to support payload bay door opening on Friday. Spacelab destow activities are complete.

Fuel cell No. 2 removal is slated for Saturday. The problem fuel cell will then be shipped to the vendor for inspection.

At Hangar AF, preparations are underway to ship the STS-83 booster nozzles to Utah on Friday.

MISSION: STS-84 -- 6th MIR DOCKING & SPACEHAB DM (image)

• VEHICLE: Atlantis/OV-104
• LOCATION: Orbiter Processing Facility bay 3
• TARGET KSC LAUNCH DATE/TIME: May 15 at about 4:07 a.m.
• LAUNCH WINDOW: 7-10 minutes
• TARGET KSC LANDING DATE/TIME: May 24 at about 7:52 a.m.
• MISSION DURATION: 9 days, 3 hours, 45 minutes
• CREW: Precourt, Collins, Foale, Noriega, Lu, Clervoy, Kondakova
• ORBITAL ALTITUDE and INCLINATION: 160 nautical miles/51.6 degrees

NOTE: Work to replace fuel cell No. 3 is complete and close-out work should be completed today. Installation of the actuator for Hatch D is complete and will be closed-out today. Payload bay door closure is scheduled for Saturday and preparations to move Atlantis into the VAB are underway. External tank and solid rocket booster close-out activities continue in preparation to be mated to Atlantis next week.

STS-84 SCHEDULED OPERATIONAL MILESTONES (dates are target only):

• Roll over to the VAB (April 14)
• Orbiter mated to ET and SRBs (April 16)

MISSION: STS-85 -- CRISTA-SPAS-2

• VEHICLE: Discovery/OV-103
• LOCATION: Orbiter Processing Facility bay 2
• TARGET LAUNCH DATE/TIME: July 17 at 10:06 a.m.
• LAUNCH WINDOW: 1 hour, 54 minutes
• TARGET KSC LANDING DATE/TIME: July 28 at about 6:54 a.m.
• MISSION DURATION: 10 days, 20 hours, 48 minutes
• CREW: Brown, Rominger, Davis, Curbeam, Robinson, Tryggvason
• ORBITAL ALTITUDE and INCLINATION: 160 nautical miles/57 degrees

NOTE: Testing of Discovery's power reactant storage and distribution system continues today. Mission events controller No. 2 will be replaced next week. The forward reaction control system is scheduled for delivery to OPF bay 2 on Thursday and installation should take place early next week.

STS-85 SCHEDULED OPERATIONAL MILESTONES (dates are target only):

• Install main engines (April 18)

NOTE ON ENDEAVOUR: Purge lines have been hooked up to Endeavour and will remain in place until its transfer to OPF bay 3 on April 17.

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