Artemis II Flight Day 5: Crew Completes Suit Tests; Trajectory Burn Refines Lunar Flyby Path

On Flight Day 5, all four Artemis II crew members completed a comprehensive Orion Crew Survival System (OCSS) suit demonstration sequence — a primary test objective of the mission. The test involved donning and pressurizing their orange suits, performing leak checks, simulating seat entry procedures, and assessing mobility limitations in the pressurized suit in microgravity. Data from this test will directly inform spacesuit procedures for future Artemis missions and long-duration deep-space operations. Later in the day, mission control and the crew executed the outbound trajectory correction burn at 11:03 p.m. EDT, a 17.5-second maneuver that refined Orion's course to optimize the geometry of the April 6 lunar flyby. Mission control also transmitted to the crew the definitive list of 30 lunar surface features to observe during the flyby window, including the Orientale basin and key regions near both lunar poles. The crew began their sleep period at 2:20 a.m., with wake-up scheduled for 10:50 a.m. on April 6 — flyby day.