The Air Force hopes a telemetry signal problem is resolved in time to launch a Global Positioning System satellite tonight aboard a Delta IV rocket.
The targeted launch time is 11:13 p.m., the opening of an 18-minute launch window, and there's an 80 percent chance of good weather.
It appears the primary concern remains the ability to maintain and monitor telemetry signals that allow the satellite -- the first in a new generation of GPS spacecraft -- to communicate with ground support equipment during flight.
A first launch attempt scrubbed Friday when the signal was lost late in the countdown.
The Air Force started a new countdown Sunday, but halted it six hours before a planned liftoff, saying more time was needed to test a modified method for monitoring the telemetry.
If the problem has been resolved, plans call for fueling of the United Launch Alliance Delta IV to begin around 5 p.m.
If the mission does not launch tonight, its next attempt would have to wait until after shuttle Atlantis return, planned Wednesday morning.
Space news and analysis from Kennedy Space Center and Cape Canaveral 
2 comments:
The launch window opens at 11:13 pm tonight.
Sorry for the error and thanks for pointing it out. It's been corrected. Apparently I still had Sunday's attempt in mind.
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