MMS Countdown Dress Rehearsal Today

The launch countdown mission dress rehearsal for the Atlas V launch team and MMS payload test team is under way today. All countdown activities for the launch vehicle and spacecraft are being replicated during the exercise. NASA, United Launch Alliance, Goddard Space Flight Center and Southwest Research Institute are all participating in the test.

The weather forecast for Thursday is generally favorable with only a 30 per cent chance of not meeting the launch weather criteria during the 30-minute launch window due to cloud constraints.

Launch remains scheduled for Thursday, March 12 at 10:44 p.m.

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