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STS-111 Liftoff Status Page

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Shuttle Endeavour Launch Status

June 5, 2002 5:22:49 p.m. EDT (21:22:49 GMT) The Launch Window was 4 minutes, 39 seconds.

On Wednesday, June 5, 2002, launch countdown has been proceeding on schedule with no weather constraints. At 4 p.m. EDT final cabin vents tests were complete and the hatch verified closed for flight. At 4:18 p.m. the countdown clock came out of the planned 10 minute hold at the T-minus 20 minute mark. At 4:29 p.m. the countdown clock entered into the T-minus 9 minute mark for a planned 45 hold. At 5:15 p.m. EDT the countdown clock came out of the T-minus 9 minute hold. At 5:17 p.m the Orbiter Access Arm (OAA) was retracted. Launch occured at the start of the launch window.
On Friday, May 31, 2002, at the tanking meeting, mission managers postponed today's launch attempt for Space Shuttle Endeavour. Forecasters predicted an 80 percent chance of weather prohibiting today's launch due to severe thunderstorms and rain showers within the vicinity of the launch pad throughout the day. At the Pad, workers will move the Rotating Service Structure back around the Shuttle for protection from approaching storms. A meeting will be held at 7:30 p.m. tonight to assess Saturday's weather forecast and determine if a tanking meeting will be held tomorrow.

On Thursday, May 30, 2002, tanking operations began at 10:32 a.m. EDT and was completed at 1:26 p.m. Shortly after 4:00 p.m. the crew departed the crew quarters, traveled to the launch pad and began the process of entering Endeavour. At 6:30 p.m., at the T-minus 20 minute and holding mark, the hatch was closed and latched for flight. The countdown proceeded smoothly with the weather as the primary concerns. There were also issues related to some readings from a GN2 pressure regulator on the left OMS pod. At 6:41 p.m. the launch manager made a call to extend the 10 minute hold at the T-minus 20 minute mark to allow for additional troubleshooting of the OMS GN2 regulator. Troubleshooting confirmed the OMS system was functioning properly and the countdown clock picked up to the T-minus 9 minute mark. At 7:21 p.m. EST, the planned 19:44:26 EDT launch attempt for 5/30/02 was scrubbed due to weather concerns with a 24 hour launch scrub turn-around and a new T-0 set for 7:22p.m. EST

On Wedesday, May 29, 2002, The launch of Space Shuttle Endeavour has been confirmed for Thursday, May 30, at the preferred launch time of 7:44:26 p.m. EDT (23:44:26 GMT). All remaining countdown activities continue on schedule. The planar launch window on Thursday extends from 7:39:27 - 7:49:25 p.m. EDT (23:39:27 - 23:49:25 GMT) with the preferred launch time reflecting a flight day three rendezvous and docking with the International Space Station. The launch window will be updated to coincide with the latest orbital position of the Space Station and will be announced at the T-9 minute hold. (Reference KSC Press Release 51-02).

On Friday, May 24, 2002, during routine testing, technicians observed that temperatures in the Auxiliary Power Unit's coolant system (water spray boiler No. 3) did not reach proper levels in the times required. Workers will enter the aft engine compartment tonight to inspect the water spray boiler and look for possible leaks. The system will be recycled and managers will determine if additional work is required. At this time, no impact to the launch schedule is expected. At the pad in the orbiter's payload bay, late-stow items are being placed in the Multi-Purpose Logistics Module today. Launch countdown preparations are beginning, with the countdown scheduled to pick up early next week. (Reference KSC Shuttle Status 5/24/2002)

On May 14, 2002, the crew of STS-111 arrived to participate in the Terminal Countdown Demonstration Test (TCDT) in preparation for the launch on May 30. As the astronauts were taking part in TCDT, mission managers met for the Flight Readiness Review and determined there were no issues or constraints at this time for Endeavour's launch next week. Late stow items are scheduled to placed in the Leonardo and Extravehicular Mobility Unit installation and checkout is in work. (Reference KSC Shuttle Status 5/20/02)

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Developed under the direction of the NASA KSC Public Affairs Office
Author: Jim Dumoulin ( / NASA - Payload Operations
Last Updated: Monday August 5 11:53:55 EDT 2002(J.Dumoulin)

A service of NASA/Kennedy Space Center Public Affairs Office, Joe Gordon Jr.,Director (