NASA’s SpaceX Crew-10 Launch Day Milestones

NASA’s SpaceX Crew-10 launch operations are underway to send four crew members to the International Space Station. Crew-10 is the 10th crew rotation mission with SpaceX to the space station under the agency’s Commercial Crew Program.  

Time              Event  (All times subject to change) 
3:48 p.m.      Suit donning and checkouts 
4:28 p.m.     Crew walkout from Neil A. Armstrong Operations & Checkout Building 
4:33 p.m.     Crew transportation to launch pad 
4:53 p.m.     Crew arrives at pad and ascends tower 
5:13 p.m.     Crew enters SpaceX Dragon spacecraft 
5:28 p.m.     Communication check 
5:33 p.m.     Seat rotation 
5:34 p.m.     Suit leak checks 
5:53 p.m.     Hatch close 
7:03 p.m.     SpaceX Launch Director verifies go for propellant load 
7:06 p.m.     Crew access arm retracts 
7:10 p.m.     Dragon’s launch escape system is armed 
7:13 p.m.     RP-1 (rocket grade kerosene) loading begins 
7:13 p.m.     1st stage LOX (liquid oxygen) loading begins 
7:32 p.m.      2nd stage LOX loading begins 
7:41 p.m.      Falcon 9 begins engine chill prior to launch 
7:43 p.m.     Dragon transitions to internal power 
7:47 p.m.      Command flight computer to begin final prelaunch checks 
7:47 p.m.      Propellant tank pressurization to flight pressure begins 
7:47 p.m.      SpaceX Launch Director verifies go for launch 
7:48 p.m.     Falcon 9 liftoff 
7:49 p.m.     Max Q (moment of peak mechanical stress on the rocket) 
7:50 p.m.    1st stage main engine cutoff (MECO) 
7:50 p.m.    1st and 2nd stages separate 
7:50 p.m.    2nd stage engine starts 
7:55 p.m.     1st stage entry burn starts 
7:57 p.m.      2nd stage engine cutoff (SECO-1) 
7:59 p.m.      Dragon separates from 2nd stage 
8:00 p.m.      Dragon nosecone open sequence begins