Artemis II is designed to keep Orion close to Earth for one day to verify life-support systems before a 400,000 km journey to the Moon.
Artemis II liftoff is scheduled for no earlier than 6:24 pm ET (2224 UTC).
Artemis II will be the first Orion mission with humans on board.
The launch range was working on a Flight Termination System issue for Artemis II and considered using Shuttle-era hardware as a workaround.
Artemis II is NASA’s first crewed mission around the Moon.
The Artemis II countdown schedule includes crew access arm retraction at T-8 minutes.
The first launch opportunity for Artemis II is 1 April at 00:24 CEST on 2 April.
The Artemis II countdown schedule calls for RS-25 engine startup at T-6.36 seconds.
The Artemis II crew includes Canadian Space Agency astronaut Jeremy Hansen and NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch.
NASA’s Artemis II countdown schedule includes a 2-hour 45-minute built-in hold from L-12H35M to L-9H50M.
If teams stop the Artemis II countdown between T-6 minutes and T-1 minute 30 seconds, they can hold for up to 3 minutes and then resume.
The Artemis II countdown schedule includes crew boarding Orion at L-4H.
The Artemis II crew is in quarantine under strict health monitoring and completing medical checks to ensure fitness for launch.
The Artemis II crew consists of NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, and Canadian Space Agency astronaut Jeremy Hansen.
NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, along with Canadian Space Agency astronaut Jeremy Hansen, will fly on Artemis II.
Four Artemis II launch opportunities are anticipated between April 1 and April 6.
The Artemis II countdown schedule includes ground launch sequencer activation from L-13H15M to L-11H45M.
Artemis II is a mission to circle the Moon.
Artemis II has a nominal launch window from 6:24 p.m. to 8:24 p.m. on April 1.
Artemis II will send a four-astronaut crew on a 10-day journey around the Moon.