Live In Orbit: NASA Go/No-Go Coming Up At 10:10 AM

NASA Chief Astronaut Steve Lindsey is flying weather reconnaissance around the central Florida area while mission managers hang on to hopes that they can bring Atlantis and its Hubble Space Telescope servicing crew.

The shuttle and its crew will be landing before noon today. The question is whether they'll land at 11:48 a.m. at KSC or 11:39 a.m. at Edwards Air Force Base in California.

Atlantis will run out of electrical power after Monday, so NASA mission managers will direct Atlantis to land on one of the upcoming opportunities. There is one other opportunity available at Edwards at 1:17 p.m.

"We hope thing improve and you get comfortable with Kennedy," Atlantis mission commander Scott Altman told Mission Control.

Mission Control is concerned that clouds in the KSC area could heat up and triggering the development of thunderstorms in the area.

There also is concern that thunderstorms that have been offshore southeast of Cape Canaveral could move within 30 miles of the three-mile shuttle runway at KSC -- a condition that would violate NASA flight rules.

The plan now is to continue monitoring the weather at KSC right up until about 10:10 a.m. -- about 15 minutes before a planned deorbit burn for the 11:39 a.m. opportunity at Edwards.

The deobit burn for the KSC would come about 10:40 a.m.

The weather at Edwards is excellent. NASA astronaut Chris Ferguson is flying weather reconnaissance in the skies around the Mojave Desert military base.

"It will come down to the wire in terms of deciding whether Atlantis will land on the west coast or the east coast," NASA flight commentator Kyle Herring said.