Weather Favorable for Sept. 3 Launch, Teams Press Ahead with Plan to Address Issues 

Meteorologists with the U.S. Space Force Space Launch Delta 45 predict a 60% chance of favorable weather conditions for an Artemis I launch attempt during a two-hour  window that opens at 2:17 p.m. EDT Saturday, Sept. 3. While rain showers are expected in the area, they are predicted to be sporadic during the launch window. 

 Today, engineers are implementing plans approved at yesterday’s mission management team meeting to address issues that arose during a launch attempt Aug. 29. The mission management team will reconvene Thursday, Sept. 1 to review data and overall readiness — NASA subsequently will hold a status update at 6 p.m. EDT.  

The countdown for launch is scheduled to resume Saturday at 4:37 a.m., at the L-9 hour, 40 minutes planned hold in the countdown where managers receive a weather briefing and conduct a poll on whether to proceed with propellant loading operations. Launch controllers do not need to begin the initial 46 hour, 10 minute countdown again because many of the configurations needed for launch are already in place.   

On Saturday, live coverage of tanking operations with commentary on NASA TV will begin at 5:45 a.m. EDT. Full launch coverage in English will begin at 12:15 p.m. and NASA en espanol broadcast coverage will begin at 1 p.m. EDT. Click here for the latest information on launch briefings and events.