Atlas V Sensor Problem Resolved; Launch Still At 7:52 P.M.

The countdown to the launch of an Atlas rocket at Cape Canaveral Air Force Station is ticking toward a 7:52 p.m. liftoff and it appears engineers have resolved a problem with a computer that receives data from first-stage engine accelerometers.

Troubleshooters still are trying to re-establish contact with the sensors through the computer and have had some success. In any case, though, engineers are putting together a back-up plan that would rely on other instrumentation in the event of a hot-fire launch pad abort -- the time data from the accelerometers is most critical.

Launch polls will be coming up along with a final weather briefing. But it looks now as if the computer problem will not be a showstopper. Stay tuned. Live coverage above.