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Sunday, 2 February, 2003, 02:08 GMT
Columbia: The last communication
Debris, TV
Columbia broke apart at about 0900 EST
There was nothing in the voice of Columbia shuttle commander Rick Husband to indicate that he was about to lose his ship.

He sounded calm as he was asked by mission control to confirm he was aware of the fault on the sensors monitoring temperature and pressure in the left wheel.

These are the last communications:

0858 EST (1358 GMT) - Commentary: "Columbia continuing toward Florida, now approaching the New Mexico/Texas border, altitude 40 miles, speed 13,200 mph. Range to touch down 1,400 miles. The shuttle in a left-bank, with wings angled about 57 degs to horizontal."

0859 - Mission control: "Columbia, Houston. We see your tyre-pressure messages - we did not copy your last."

Columbia/Husband: "Roger... erm..." (Radio noise and crackling)

Husband, Nasa
Husband was asked to acknowledge the sensor problem
0901 - Commentary: "Columbia out of communications at present with mission control as it continues its course toward Florida."

0902 - Commentary: "Fourteen minutes to touch down at the Kennedy Space Center, flight controllers are standing by to try and regain communications with the spacecraft."

0903 - Mission control: "Columbia, Houston. Comm check."

0903.30 - Mission control: "Columbia - Houston UHF comm check."

0904 - Mission control: "Columbia , Houston. Comm check."

0904.30 - Mission control: "Columbia, Houston. UHF comm check."

0904.45 - Commentary: "Flight controllers are standing by for Columbia to move within communications range of the Merritt Island tracking range in Florida, to regain communications with Columbia."

0905 - Commentary: "Also flight controllers standing by for tracking data from Columbia that's also received through the Merritt Island tracking station. UHF comm check."

0905.40 - Commentary: "Ten-and-a-half minutes to anticipated touch down of Columbia."

0906.45 - Commentary: "Flight controllers are still standing by for C-band tracking data from the Merritt Island tracking station of Columbia and UHF communications."

0907 - Mission control: "Columbia, Houston. UHF comm check."

0908 - Commentary: "Eight minutes on the touch-down clock for Columbia. Flight controllers continuing to standby to regain communications with the spacecraft."

0908.20 - Commentary: "Flight controllers standing by for communications through the Merritt Island tracking station at ground tracking site in Florida."

0910 - Mission control: "This is mission control Houston. Flight controllers are continuing to seek tracking data of Columbia. Touchdown clocks count down to six minutes to touchdown of Columbia at the Kennedy Space Centre runway. Tracking data is being sought through the Merritt Island tracking station located near the Kennedy Space Centre in Florida."

0910.20 - Commentary: "Communications with Columbia were lost at about 8am central time, about 10 minutes ago."

 WATCH/LISTEN
 ON THIS STORY
The BBC's Matt Frei
"Nasa's investigation has only just started"

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