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The Mission




Orbiter: Atlantis
Mission: STS-115
Launch: Sept. 9, 2006
Time: 11:15 a.m. EDT (1515 GMT)
Site: Pad 39B, Kennedy Space Center, Florida
Landing: Sept. 21 @ 6:21 a.m. EDT (1021 GMT)
Site: Shuttle Landing Facility, KSC
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The Crew




Veteran shuttle commander Brent Jett leads a six-person crew launching aboard Atlantis for the STS-115 mission.

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CDR: Brent Jett

PLT: Chris Ferguson

MS 1: Joe. Tanner

MS 2: Dan Burbank

MS 3: Heide Piper

MS 4: Steve MacLean

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Suspect sensor stays 'wet' after tank drained
BY WILLIAM HARWOOD
STORY WRITTEN FOR CBS NEWS "SPACE PLACE" & USED WITH PERMISSION
Posted: September 8, 2006

Engine cutoff - ECO - sensor No. 3, the one that "failed wet" earlier today and derailed an attempt to launch the shuttle Atlantis, continued indicating it was immersed in liquid hydrogen after the ship's external tank was drained this afternoon, officials said. The other three ECO sensors in the hydrogen tank correctly indicated they were dry as one would expect.

The readings lend some credence to the belief that three of the four sensors are operating normally. If they continue to behave properly when the tank is re-loaded with liquid hydrogen early Saturday - and if no other sensor issues develop - NASA managers may be able to approve a flight rule change allowing a launch with three of four operational ECO sensors.

At launch pad 39B, meanwhile, approaching bad weather will prevent engineers from moving a gantry back in place around Atlantis. As a result, technicians will be unable to re-install a rain cover over one of the ship's forward thrusters that was blown off during a recent storm.

Water in the thruster can freeze as the shuttle climbs to space and interfere with operation of a pressure sensor. That, in turn, can fool the shuttle's computers into believing the thruster failed. But the thruster in question points to one side, not straight up, and engineers are hopeful any rain showers later today will not cause problems.

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Additional coverage for subscribers:
VIDEO: TODAY'S LAUNCH ATTEMPT SCRUBBED PLAY
VIDEO: CREW DEPARTS QUARTERS FOR THE PAD TODAY PLAY
VIDEO: ASTRONAUTS SUIT UP FOR LAUNCH PLAY
VIDEO: CREW'S LAUNCH MORNING SNACK TIME PLAY
VIDEO: ATLANTIS CLEARED FOR LAUNCH FRIDAY DIAL-UP | BROADBAND
VIDEO: BRIEFING ON FUEL CELL DELAY DIAL-UP | BROADBAND
VIDEO: TUESDAY'S STATUS UPDATE BRIEFING DIAL-UP | BROADBAND
VIDEO: PRE-LAUNCH NEWS BRIEFING DIAL-UP | BROADBAND
VIDEO: MONDAY'S COUNTDOWN STATUS DIAL-UP | BROADBAND

VIDEO: BIOGRAPHY MOVIE ON THE SIX ASTRONAUTS PLAY
VIDEO: SHORT MOVIE PREVIEW OF ATLANTIS' MISSION PLAY
VIDEO: OUTLOOK ON UPCOMING STATION ASSEMBLY FLIGHTS PLAY
VIDEO: CREW ARRIVES IN T-38 TRAINING JETS PLAY
VIDEO: COMMENTS FROM CREW AFTER ARRIVAL PLAY
VIDEO: NEWS BRIEFING ON RETURN TO PAD DIALUP | BROADBAND
VIDEO: ATLANTIS ROLLBACK BEGINS PART 1 | PART 2
VIDEO: OFFICIALS EXPLAIN LIGHTNING SCRUB PLAY
VIDEO: SEE THE LIGHTNING STRIKE AT PAD B PLAY
VIDEO: ANOTHER VIEW OF LIGHTNING STRIKE PLAY


VIDEO: COMPLETE PREVIEW OF ATLANTIS MISSION PLAY
VIDEO: DETAILS OF THE THREE SPACEWALKS PLAY
VIDEO: MEET THE SIX ASTRONAUTS PLAY
MORE: STS-115 VIDEO COVERAGE
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