NASAs SpaceX Crew-9 Launch Day Milestones
NASA's SpaceX Crew-9 launch operations are underway to send a NASA astronaut and Roscosmos cosmonaut to the International Space Station. Crew-9 is the ninth crew rotation mission with SpaceX to the space station under the agency's Commercial Crew Program.
Time? ? ? ? ? ? ? Event? (All times subject to change) 9:17 a.m.? ? Suit donning and checkouts 9:57 a.m.? Crew walkout from Neil A. Armstrong Operations & Checkout Building 10:02 a.m.? Crew transportation to Launch Complex-40 10:20 a.m. Crew arrives at pad and ascends tower 10:42 a.m.? Crew ingress 10:48 a.m.? Seat rotation 10:49 a.m.? Suit leak checks 10:58 a.m.? Communication check 11:22 a.m.? Hatch close 12:42 p.m. SpaceX Launch Director verifies go for propellant load 12:35 p.m.? Crew access arm retracts 12:39 p.m.? Dragon's launch escape system is armed 12:42 p.m.? RP-1 (rocket grade kerosene) loading begins 12:42 p.m.? 1st stage LOX (liquid oxygen) loading begins 1:01 p.m.? ? 2nd stage LOX loading begins 1:10 p.m.? ? Falcon 9 begins engine chill prior to launch 1:15 p.m.? ? Dragon transitions to internal power 1:16 p.m.? ? Command flight computer to begin final prelaunch checks 1:16 p.m.? ? Propellant tank pressurization to flight pressure begins 1:16 p.m.? ? SpaceX Launch Director verifies go for launch 1:17 p.m.? ? Falcon 9 liftoff 1:18 p.m.? ? Max Q (moment of peak mechanical stress on the rocket) 1:19 p.m.? ? 1st stage main engine cutoff (MECO) 1:19 p.m.? ? 1st and 2nd stages separate 1:19 p.m.? ? 2nd stage engine starts 1:20 p.m.? ? Boostback Burn Starts 1:21 p.m.? ? Boostback Burn Ends 1:23 p.m.? ? 1st stage entry burn starts 1:24 p.m.? ? 1st stage entry burn ends 1:24 p.m.? ? 1st stage landing burn starts 1:25 p.m.? ? 1st stage landing 1:26 p.m.? ? 2nd stage engine cutoff (SECO-1) 1:29 p.m.? ? Dragon separates from 2nd stage 1:30 p.m.? ? Dragon nosecone open sequence begins
NASA's live coverage of the Crew-9 mission continues on NASA+ and the agency's website. Also check back for updates on the mission blog, @commercial_crew on X, or commercial crew on Facebook.
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