There are several key milestones during launch coverage of NASA’s Nancy Grace Roman Space Telescope.
NASA’s live broadcast covering the Roman mission begins at 6:20 a.m. EDT. Watch on NASA+ and a variety of platforms. Learn where to watch: www.nasa.gov/live.
– 00:53:00 | SpaceX Launch Director verifies go for propellant load
– 00:50:00 | 1st stage RP-1 (rocket grade kerosene) loading begins
– 00:45:00 | 1st stage LOX (liquid oxygen) loading begins
– 00:35:00 | 2nd stage RP-1 (rocket grade kerosene) loading begins
– 00:00:59 | Flight computer commanded to begin final pre-launch checks
– 00:00:45 | SpaceX Launch Director verifies go for launch
– 00:00:20 | Propellant tanks pressurize for flight
– 00:00:06 | Engine controller commands engine ignition sequence to start
00:01:08 | Max Q, the moment of peak mechanical stress on the rocket
