NEW ORLEANS (AP) -- A video camera on the space
shuttle Discovery's external fuel tank will record the launch planned for spring
2005, including any flyaway foam of the sort that led to last year's Columbia
disaster.
The camera, to be placed in a recessed spot toward
the top of the fuel tank, will transmit live footage for about 15 minutes after
launch, Neil Otte, chief engineer on Lockheed Martin's external tank project,
said Thursday. A group of NASA officials will review the images and determine
how much insulating foam flew off the tank.
"They will categorize any anomalous issues that we
have," Otte said.
An investigation into the Columbia disaster
determined a briefcase-sized chunk of foam flew off the external tank during
liftoff and struck the shuttle's left wing, creating a hole. Hot gases burned
through the hole when the shuttle re-entered the atmosphere, causing the
spacecraft to break apart over Texas and the deaths of all seven
astronauts.
The findings led to an overhaul of the way workers
apply the foam to the tanks and to heightened inspection systems at the New
Orleans plant where the tanks are put together. Engineers still expect small
pieces of the foam to fly off after launch, but they should be harmless, many
about the size of popcorn kernels, Otte said.
Next year's launch, planned for March or April, will
be the first since the Columbia disaster on Feb. 1, 2003.
The only other shuttle with a camera on the external
tank was used on the 2002 Atlantis mission. That camera's lens was obscured by
exhaust particles when the external tank was jettisoned minutes after
launch.
The camera on next year's mission will be positioned
on the opposite side of the tank, away from the shuttle, Otte said, so the
vessel's exhaust will not smear the lens when the tank detaches.
The external tank supplies fuel to the shuttle
engines for liftoff. It detaches about eight minutes after launch and
disintegrates when it re-enters the atmosphere.