L-8:30:00 |
Countdown Initiation, Launch Vehicle Power-Up |
L-6:00:00 |
First Weather Balloon Release |
L-5:00:00 |
Launch Area Evacuation |
L-4:45:00 |
Range Controllers on Station |
L-4:35:00 |
Falcon 9 Attitude Control System N2 Loading |
L-4:50:00 |
Falcon 9 Reconfiguration for Propellant Loading |
L-4:37:00 |
GO for Propellant Loading |
L-4:20:00 |
Rocket Propellant 1 Loading |
L-4:00:00 |
Eastern Range Countdown Initiation |
L-4:00:00 |
LOX Systems Setup & Chilldown Ops |
L-3:45:00 |
LOX Loading |
L-2:45:00 |
Falcon 9 RF & Telemetry Checks |
L-2:30:00 |
Falcon 9 Launch Vehicle Release System Test |
L-2:25:00 |
TEA-TEB Bleed In |
L-2:00:00 |
RP-1 Tanking complete |
L-1:45:00 |
Comm & FTS Checks |
L-1:40:00 |
Data Flow Tests with Downrange Tracking Stations |
L-1:30:00 |
LOX Replenish |
L-1:00:00 |
Weather Briefing |
L-0:50:00 |
RF Link Checks |
L-0:45:00 |
Flight Control System Setup (Flight Software Loading) |
L-0:30:00 |
Final LOX Topping |
L-0:27:00 |
Spacecraft to Internal Power |
L-0:13:00 |
COUNTDOWN HOLD POINT |
L-0:13:00 |
Launch Director Poll |
L-0:11:00 |
Terminal Count Briefing |
T-0:10:00 |
Terminal Countdown |
T-0:09:55 |
Verify that Terminal Countdown has started |
T-0:09:50 |
Range Recorders Start |
T-0:09:45 |
Launch Enable to Flight Mode |
T-0:09:30 |
First Stage Merlin Engine Chilldown, Pre Valves to Open |
T-0:09:20 |
Ground TEA-TEB Setup |
T-0:09:17 |
Merlin 1D: Lox Bleeder Valves Open |
T-0:08:15 |
Engine Trim Valve Cycling |
T-0:07:30 |
Go/No Go for Launch |
T-0:07:00 |
Spacecraft on Internal Power |
T-0:07:00 |
First Stage Heater Shutdown |
T-0:07:00 |
First Stage ACS Close-Out |
T-0:06:35 |
Second Stage Heater Shutdown |
T-0:06:25 |
Falcon 9 to Internal Power |
T-0:06:00 |
Transfer to Internal complete |
T-0:05:55 |
Pressurization for Strongback Retract |
T-0:05:30 |
Strongback Cradles Opening |
T-0:05:30 |
Dragon ready for Solar Array Power Generation (if applicable) |
T-0:05:30 |
Dragon Countdown Auto Sequence (if applicable) |
T-0:05:00 |
Second Stage Nitrogen Loading Termination |
T-0:04:46 |
Stage 1 & Stage 2 Auto Sequence starts |
T-0:04:30 |
Stage 2 Thrust Vector Control Test |
T-0:04:25 |
Strongback Retraction |
T-0:04:10 |
Vehicle Release Auto Sequence |
T-0:03:45 |
Verify Good Mvac TVC |
T-0:03:40 |
TEA-TEB Ignition System Activation |
T-0:03:30 |
Strongback Retraction complete |
T-0:03:25 |
Flight Termination System to Internal Power |
T-0:03:05 |
Flight Termination System Armed |
T-0:03:00 |
LOX Topping Termination |
T-0:03:00 |
Strongback Securing complete |
T-0:02:45 |
Fuel Trim Valve to Flight Position |
T-0:02:40 |
FTS Countdown Sequence |
T-0:02:30 |
Launch Director: Go for Launch |
T-0:02:20 |
Propellant Tank Pre-Press |
T-0:02:00 |
Range Verification |
T-0:02:00 |
Flight Control to Self Alignment |
T-0:01:35 |
Helium Loading Termination |
T-0:01:30 |
Final Engine Chilldown, Pre-Valves/Bleeders Open |
T-0:01:20 |
Engine Purge |
T-0:01:00 |
Flight Computer to start-up |
T-0:01:00 |
Pad Deck Water Deluge System Activation |
T-0:00:55 |
Second Stage to Flight Pressure |
T-0:00:50 |
First Stage Thrust Vector Actuator Test |
T-0:00:40 |
First Stage to Flight Pressure |
T-0:00:20 |
All Tanks at Flight Pressure |
T-0:00:15 |
Arm Pyrotechnics |
T-0:00:10 |
Latest VC Abort |
T-0:00:03 |
Merlin Engine Ignition |
T-0:00:00 |
LIFTOFF |