NASA’s Artemis I mission management team met this afternoon to review the status of the operations. They have given a “go” for a September 3 launch attempt of the Space Launch System rocket and Orion spacecraft. Since the previous launch attempt on Monday, August 29, teams have updated procedures, practiced operations, and refined timelines.
Over the last day, teams worked to fix a leak on the tail service mast umbilical. They replaced a flex-hose and a loose pressure sensor line, which were the likely sources of the leak. Teams also retorqued, or tightened, the bolts surrounding that enclosure to ensure a tight seal when introducing the super-cooled propellants through those lines. While there was no leak detected at ambient temperatures, teams will continue to monitor during tanking operations.
Teams will adjust the procedures to chill down the engines, also called the kick start bleed test, about 30 to 45 minutes earlier in the countdown during the liquid hydrogen fast fill phase for the core stage. This will allow for additional time to cool the engines to appropriate temperatures for launch.
U.S. Space Force Space Launch Delta 45 meteorologists predict 60% favorable weather conditions, improving throughout the window for Saturday.
- Jeremy Parsons, Exploration Ground Systems, deputy program manager, NASA Kennedy
- Melody Lovin, weather officer, Space Launch Delta 45
On Saturday, live coverage of tanking operations with commentary on NASA TV will begin at 5:45 a.m. EDT (2:45 a.m. PDT). Full launch coverage in English will begin at 12:15 p.m.