SpaceX Demo-2 launch schedule:
-45:00: SpaceX launch director verifies go for fuel propellant.
-42:00: Crew access arm retracts.
-37:00: Dragon’s launch escape system is armed.
-35:00: RP-1 rocket grade kerosene loading begins.
-35:00: First stage liquid oxygen loading begins.
-16:00: Second stage liquid oxygen loading begins.
-07:00: Falcon 9 begins engine chill prior to launch.
-05:00: Dragon transitions to internal power.
-01:00: Command flight to begin final prelaunch checks.
-01:00: Propellant tank pressurisation to flight pressure begins.
-00:45: SpaceX launch director verifies go for launch.
-00:03: Engine controller commands engine ignition sequence to start.
-00:00: SpaceX Falcon 9 liftoff.
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