Starlink Group 10-39
Falcon 9 Block 5. Space Launch Complex 40, Cape Canaveral SFS, FL, USA.
Launch Successful
- Recovery
- B1078: Autonomous Spaceport Drone Ship, A Shortfall of Gravitas, successful
1 Landed
- Your Time
- UTC
- At the Pad
Starlink Group 10-39
SpaceX
Mission
Communications, Low Earth Orbit
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Countdown Sequence
Planned offsets from T-0; confirmations link to their sources
Sequence Ended · Success
- T−00:38:00
GO for Prop Load
Launch director verifies go for propellant load
Planned Time Elapsed
- T−00:35:00
Stage 1 LOX Load
Start of liquid oxygen loading in the first stage
Planned Time Elapsed
- T−00:35:00
Prop Load
Start of propelland loading
Planned Time Elapsed
- T−00:16:00
Stage 2 LOX Load
Start of liquid oxygen loading in the second stage
Planned Time Elapsed
- T−00:07:00
Engine Chill
Start of engine chilling
Planned Time Elapsed
- T−00:01:00
Startup
The onboard computer takes control over the countdown and runs last checks
Planned Time Elapsed
- T−00:01:00
Tank Press
Fuel tanks are pressurized to flight levels
Planned Time Elapsed
- T−00:00:45
GO for Launch
Launch director verifies go for launch
Planned Time Elapsed
- T−00:00:03
Ignition
Start of the engine ignition sequence
Planned Time Elapsed
- T+00:00:00
- T+00:01:10
Max-Q
Maximum dynamic pressure
Planned Time Elapsed
- T+00:02:26
MECO
Cut-off of the main engine
Planned Time Elapsed
- T+00:02:29
Stage 2 Separation
Separation of the second stage from the first
Planned Time Elapsed
- T+00:02:36
SES-1
First start of the second engine
Planned Time Elapsed
- T+00:02:58
Fairing Separation
Separation of the payload fairing
Planned Time Elapsed
- T+00:06:03
Entry Burn Startup
Start of the atmospheric entry burn
Planned Time Elapsed
- T+00:06:24
Entry Burn Shutdown
End of the atmospheric entry burn
Planned Time Elapsed
- T+00:08:02
Stage 1 Landing Burn
Start of the first stage landing burn
Planned Time Elapsed
- T+00:08:25
Stage 1 Landing
Landing of the first stage
Planned Time Elapsed
- T+00:08:39
SECO-1
First cut-off of the second engine
Planned Time Elapsed
- T+00:52:06
SES-2
Second start of the second engine
Planned Time Elapsed
- T+00:52:07
SECO-2
Second cut-off of the second engine
Planned Time Elapsed
- T+01:01:28
Starlink Deployment
Deployment of the Starlink stack from the rocket
Planned Time Elapsed
Change Log
Detected changes and source updates
Launch success.
Liftoff!
Unofficial Re-stream by SPACE AFFAIRS has started
Tweaked T-0.
Updated launch weather, 85% GO at start of window (45% at end).
Now targeting Aug 21 at 15:14 UTC
Scrubbed for the day, rescheduled to August 21.
Hold at T-28 seconds.
Unofficial Re-stream by SPACE AFFAIRS has started
Now targeting Aug 20 at 15:38 UTC
Updated launch weather, 80% GO at start of window (40% at end).
Added launch.