The countdown for the Artemis II wet dress rehearsal is underway at NASA’s Kennedy Space Center in Florida.
The countdown clock began at 8:13 p.m. EST, or L-48 hours, 40 minutes before the opening of a simulated launch window at 9 pm. Mon, Feb. 2. The test is expected to go until approximately 1 a.m. Feb. 3.
This test will run the launch team, as well as supporting teams in the Mission Control Center at NASA’s Johnson Space Center in Houston and other supporting NASA centers, through a full range of operations, including loading cryogenic liquid propellant into the SLS (Space Launch System) rocket’s tanks, conducting a launch countdown, demonstrating the ability to recycle the countdown clock, and draining the tanks to practice scrub procedures. These steps ensure the team is fully prepared for launch day.
A 24/7 live stream of the rocket at the pad continues online. NASA will provide a separate feed during tanking activities, as well as real-time blog post updates regarding the test during the fueling day.
Countdown MilestonesThe countdown contains “L minus” and “T minus” times. “L minus” indicates how far away we are from liftoff in hours and minutes. “T minus” time is a sequence of events that are built into the countdown. Pauses in the countdown, or “holds,” are built into the countdown to allow the launc …