NROL-136
Falcon 9 Block 5, SpaceX
Space Launch Complex 4E, Vandenberg SFB, CA, USA
Launch time
Window opens
Sat 21 Nov, 13:30 CET
12:30 UTC
Current T-0 confirmed by official or reliable sources.
- Window closes
How sure is this date?
The source gives minute precision. Launch plans can change.
Launch record updated by LL2
Feed checkedMission
NROL-136 on Falcon 9 Block 5. Sat 21 Nov 2026, 12:30 UTC. Status: Go. Launch site: Space Launch Complex 4E. Source: Launch Library 2.
Fifteenth batch of satellites for a reconnaissance satellite constellation built by SpaceX and Northrop Grumman for the National Reconnaissance Office to provide imaging and other reconnaissance capabilities.
- Mission type
- Government/Top Secret
- Orbit
- Low Earth Orbit
Rocket file imagery
File imagery: Crew-9, 28 September 2024. Falcon 9 lifting off from Space Launch Complex 40.
Credit: NASA/Keegan Barber · Public domain (NASA) · SourceMission patches
- NROL-146
Patch artwork is not shown because its image licence is unconfirmed.
Launch context
Generated from source records
NROL-136: Falcon 9 Block 5, operated by SpaceX. Pad: Space Launch Complex 4E, Vandenberg SFB, CA, USA. Mission type: Government/Top Secret; target orbit: Low Earth Orbit. Window opens: Sat 21 Nov 2026, 12:30 UTC. Go confirms the listed plan, not liftoff. Vehicle: 285/285 resolved orbital outcomes succeeded (100%) in our records since 4 Jan 2025. Pad: 134 orbital attempts in our records since 10 Jan 2025.
Partial historical coverage. Records snapshot: .
What these records cover
Partial coverage of stored records, not lifetime or worldwide totals. Counts use known orbital attempts with a source date at or before this snapshot and a status confirming liftoff or an outcome. Scheduled, upstream-missing, suborbital and unknown-orbit records are excluded. Source dates are NET estimates, not verified actual liftoff times.
The vehicle percentage is Success / (Success + Failure + Partial Failure). In Flight and Payload Deployed count as attempts but are excluded from that denominator. Figures describe the stored record at this snapshot, not the vehicle's flight number or a prediction of this launch's outcome.
Launch Library 2 record checked . Recorded timing does not establish actual liftoff; plans can change.
Launch data: The Space Devs (Launch Library 2)Launch timeline
Times are relative to liftoff. Clock times are not shown while T-0 is unconfirmed or on hold.
- T-38 min
GO for Prop Load
Launch director verifies go for propellant load
- T-35 min
Prop Load
Start of propelland loading
- T-35 min
Stage 1 LOX Load
Start of liquid oxygen loading in the first stage
- T-16 min
Stage 2 LOX Load
Start of liquid oxygen loading in the second stage
- T-7 min
Engine Chill
Start of engine chilling
- T-1 min
Startup
The onboard computer takes control over the countdown and runs last checks
- T-1 min
Tank Press
Fuel tanks are pressurized to flight levels
- T-45 s
GO for Launch
Launch director verifies go for launch
- T-3 s
Ignition
Start of the engine ignition sequence
- T-0
Liftoff
First upwards movement of the rocket
- T+1 min 2 s
Max-Q
Maximum dynamic pressure
- T+2 min 11 s
MECO
Cut-off of the main engine
- T+2 min 14 s
Stage 2 Separation
Separation of the second stage from the first
- T+2 min 22 s
SES-1
First start of the second engine
- T+2 min 27 s
Booster Boostback Burn Startup
Start of the booster boostback burn
- T+2 min 59 s
Fairing Separation
Separation of the payload fairing
- T+3 min 22 s
Booster Boostback Burn Shutdown
End of the booster boostback burn
- T+5 min 53 s
Entry Burn Startup
Start of the atmospheric entry burn
- T+6 min 10 s
Entry Burn Shutdown
End of the atmospheric entry burn
- T+7 min 9 s
Stage 1 Landing Burn
Start of the first stage landing burn
- T+7 min 34 s
Stage 1 Landing
Landing of the first stage
Slip history
Changes recorded by Space Right Now
No changes since we started tracking on .
Source updates from Launch Library 2 (1)
Announcements supplied by LL2 may predate our tracking. They are separate from changes observed by Space Right Now.
- LL2 update
Added launch.
Read the source update
Launch pad
Space Launch Complex 4E
Vandenberg SFB, CA, USA (US)
Coordinates: 34.632, -120.611
View launch pad on a map