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

• VEHICLE: Columbia/OV-102 (image)
• LOCATION: Pad 39A
• LAUNCH DATE/TIME: April 3 at 2:01 p.m. EST
• LAUNCH WINDOW: 2 hours, 30 minutes
• TARGET KSC LANDING DATE/TIME: April 19 at about 7:37 a.m. EDT
• MISSION DURATION: 15 days, 16 hours, 36 minutes
• CREW: Halsell, Still, Voss, Thomas, Gernhardt, Linteris, Crouch (image)
• ORBITAL ALTITUDE and INCLINATION: 160 nautical miles/28.45 degrees

NOTE: Aft engine compartment close-outs and launch countdown preparations continue on schedule. The aft compartment doors are scheduled to be installed this weekend. The countdown will begin at the T-43 hour mark at 2 p.m. Monday, March 31.

STS-83 SCHEDULED OPERATIONAL MILESTONES (dates are target only):

* Complete aft engine compartment close-outs (March 29)

* Begin launch countdown (2 p.m. March 31)

* Crew arrival (2:30 p.m. March 31)

* Begin external tanking operations (5:11 a.m. April 3)

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: The forward reaction control system (FRCS) has been removed from Atlantis and sent to the Hypergolic Maintenance Facility where work will be conducted to verify the proper installation of thruster seals. The FRCS is scheduled to be returned to the OPF this weekend and reinstalled on the orbiter.

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

* Reinstall FRCS (March 31)

* Close payload bay doors for roll to VAB (April 1)

* Roll over to the VAB (April 10)

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: The forward reaction control system will be removed later this week and sent to the Hypergolic Maintenance Facility for inspections of the thrusters' seals. Also, a helium isolation valve will be replaced. Work to remove and replace fuel cell No. 2 is underway.

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

* Install main engines (April 18)

NOTE ON ENDEAVOUR: The orbiter Endeavour, riding atop the 747 Shuttle Carrier Aircraft (SCA), landed at KSC's Shuttle Landing Facility at about 9:45 a.m. today, completing is cross-country ferry flight from Palmdale, CA. (image) Endeavour departed Palmdale at about 9 a.m. EST March 26 and stopped briefly for fuel at Ft. Worth Naval Air Station, TX. The vehicle then proceeded to Warner Robbins Air Force Base, GA, where it stayed overnight last night before departing for KSC this morning. Endeavour will be removed from the SCA today and transported to Orbiter Processing Facility bay 1 early tomorrow morning.

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