With less than three (3) hours to go, loading of liquid oxygen aboard the first and second stages of the Falcon 9 rocket has been completed.
Here is the pre-launch schedule for major events:
At 3:05 PM Phoenix time, we are at T-2 hours 30 minutes.
At 4:35 pm we are at T-60 minutes and counting. A weather briefing is schedule momentarily by the Launch Weather Officer (LWO). Currently there are no significant issues being worked.
LWO – Weather is good, visibility is expected to be unlimited, there are clouds around 4,000 feet, winds are low at 5-10 knots and the chance of launch has been raised to 80%.
At T-35 minutes, a variety of system and range condition checks are underway. There are no issues at the moment.
At T-30 minutes, the Launch Director notes that Dragon can carry powered cargo. One such item is a freezer stocked on this trip with chocolate-vanilla swirl ice cream for the crew aboard the space station.
At T-25 minutes, weather is green. LWO says there are no weather violations at this time.
T-20 and counting.
At T-14 minutes, Falcon switched to internal power. A complete readiness poll is due in two minutes.
T-12 minutes and all systems are go for terminal countdown to begin at T-10:30.
Merlin engines are beginning chill down. At T-8, Dragon will go to internal power. All systems are go and the weather is green.
Stage one and stage two on internal power.
LOX topping has terminated.
T-2:30 – go for launch.
T-2:00 – range office has go for launch.
T-60 seconds and all systems are go.
At T+60 seconds all systems are good. Vehicle is supersonic.
All Merlin engines are nominal.
Second stage chill down.
Separation of first and second stages.
Second stage ignition for a six minute burn.
Fairing jettisoned correctly.
All systems nominal at 4:42.