STS-99 - Shuttle Radar Topography Mission (SRTM)
VEHICLE: Endeavour/OV-105
LOCATION: Pad 39A
TARGET LAUNCH DATE/TIME: Not before Jan. 31 at 12:47 p.m. EST
TARGET KSC LANDING DATE/TIME: Feb. 11 at 4:52 p.m. EST
LAUNCH WINDOW: 2 hours and 2 minutes
MISSION DURATION: 11 days and 4 hours
CREW: Kregel, Gorie, Kavandi, Voss, Mohri, Thiele
ORBITAL ALTITUDE and INCLINATION: 126 nautical miles/57 degrees

Work in progress: Processing of Space Shuttle Endeavour has resumed at Launch Pad 39A following the holiday downtime. Just prior to the holidays, workers completed launch pad validations and conducted a hotfire test of all three auxiliary power units. In addition, Endeavour's three main engines underwent flight readiness tests. Shuttle workers then configured the Shuttle for an eight-day holiday break.

Tuesday, technicians were preparing for Friday's helium signature leak test and conducting routine leak checks on main engine No. 3. Wednesday, the launch team will assemble in firing room No. 3 to participate in a launch countdown simulation. Loading of prelaunch propellant into Endeavour's onboard storage tanks begins Monday. Terminal Countdown Demonstration Test activities with the flight crew are slated to occur Jan. 13 and 14.

STS-101 - 3rd ISS Flight (2A.2) - SPACEHAB DM
VEHICLE: Atlantis/OV-104
LOCATION: Orbiter Processing Facility bay 3
TARGET LAUNCH DATE/TIME: Not before March 16 at 7:45 a.m. EST
TARGET KSC LANDING DATE/TIME: March 27 at 2:40 a.m. EST
LAUNCH WINDOW: 5-10 minutes
MISSION DURATION: 10 days and 19 hours
CREW: Halsell, Horowitz, Weber, Lu, Williams, Malenchenko, Morukov
ORBITAL ALTITUDE and INCLINATION: 173 n. miles/51.6 degrees

Work in progress: Orbiter Atlantis' three auxiliary power units were installed before the holidays. This week, technicians are conducting wiring inspections and repairs in the orbiter's midbody and aft compartments. Engineers also plan to check out Atlantis' replaced orbiter maneuvering system pods later this week.

STS-92 - 4th ISS Flight (3A) - Z-1 Truss, PMA-3
VEHICLE: Discovery/OV-103
LOCATION: OPF bay 1
TARGET LAUNCH DATE/TIME: No earlier than June 14 at 8:42 p.m. EDT
TARGET KSC LANDING DATE/TIME: June 24 at 5:10 p.m. EDT
LAUNCH WINDOW: 10 minutes
MISSION DURATION: 10 days
CREW: Duffy, Melroy, Wakata, Chiao, Wisoff, Lopez-Alegria, McArthur
ORBITAL ALTITUDE and INCLINATION: 173 n. miles/51.6 degrees

Work in progress: Processing of orbiter Discovery has resumed in OPF bay 1. Workers drained the vehicle's onboard cryogenic reactants after a Dec. 27 landing and then secured Discovery for the transition to year 2000. Preparations are now under way to open Discovery's payload bay doors later this week. Next week, work begins to remove any residual hypergolics from Discovery's storage tanks.