asfencard.blogg.se - 1 minute countdowns

Orion spacecraft power up start (L-41 hours).

Fill the water tank for the sound suppression system (L-45 hours).

The launch team arrives on their stations and the countdown begins (L-45, 40 minutes hours).

EDT, June 18 – L-45 hours, 40 minutes and counting

Leak checks are completed on the Orion spacecraft and the launch abort system is closed (will occur at ~L-29 hours, 30 minutes for launch)ĥ p.m.

The crew access arm is retracted (will occur at ~L-30 hours for launch).

The Orion crew module hatch is closed (will occur at ~L-37.5 hours for launch).

If needed, the test team may also hold as necessary to verify conditions before resuming the countdown, or use the test window or extend beyond it, if consumables and resources allow them to complete test objectives. These demonstrations include tests on the cryogenic systems and an approximately three-minute hold inside the terminal count, which would not normally occur on launch day.

During the test, the timing for some events on account of several planned operational demonstrations tied to specific capabilities and test objectives may differ from the day of launch countdown. EDT June 18 with “call to stations,” when the launch team arrives at their consoles inside the Launch Control Center at NASA’s Kennedy Space Center in Florida. The rehearsal will run the Artemis I launch team through operations to load propellant into the rocket’s tanks, conduct a full launch countdown, demonstrate the ability to recycle the countdown clock, and also drain the tanks to give them an opportunity to practice the timelines and procedures they will use for launch.Īpproximate times for milestones during the test are below. The test will begin at approximately 5 p.m. NASA is on track to begin the approximately two-day wet dress rehearsal for the agency’s Artemis I mission.