Launch success.
Update ↗
Historical mission record
This page records Falcon 9 Block 5 | NROL-77 and its reported outcome: Launch Successful. The date above is a historical record.
Source record updated . This is a source update, not a confirmed launch time.
Check the source: SpaceX ↗ · Official Press Kit ↗ · Launch Library ↗
What changed?
Status reported by the mission data provider.
Mission
Classified payload for the US National Reconnaissance Office.
- Launch vehicle
- Falcon 9 Block 5
- Mission type
- Government/Top Secret
- Destination orbit
- Unknown
- Launch pad
- Space Launch Complex 40
- Provider
- SpaceX
- Recovery
- Return to Launch Site, The Falcon 9 first stage B1096 has landed back at the launch site at Landing Zone 2 (LZ-2) after its 4th flight. +1
The vehicle
Published configuration and flight history.

Falcon 9 Block 5
Falcon 9 is a two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of satellites and the Dragon spacecraft into orbit. The Block 5 variant is the fifth major interval aimed at improving upon the ability for rapid reusability.
- Height
- 70 m
- Diameter
- 3.65 m
- Stages
- 2
- Recorded launches
- 537
- First flight
- 2018-05-11

Recorded timing
This is a mission record, not an upcoming calendar appointment.
A single scheduled moment. The schedule may change before launch.
Flight timeline
Planned sequence, not live telemetry. Times are relative to the launch target.
- T−00:38:00
GO for Prop Load
- T−00:35:00
Prop Load
- T−00:35:00
Stage 1 LOX Load
- T−00:16:00
Stage 2 LOX Load
- T−00:07:00
Engine Chill
- T−00:01:00
Startup
Show the full sequence (22 events)
- T−00:01:00
Tank Press
- T−00:00:45
GO for Launch
- T−00:00:03
Ignition
- T+00:00:00
Liftoff
- T+00:01:12
Max-Q
- T+00:02:12
MECO
- T+00:02:15
Stage 2 Separation
- T+00:02:23
SES-1
- T+00:02:28
Booster Boostback Burn Startup
- T+00:03:04
Fairing Separation
- T+00:03:22
Booster Boostback Burn Shutdown
- T+00:06:44
Entry Burn Startup
- T+00:07:04
Entry Burn Shutdown
- T+00:08:01
Stage 1 Landing Burn
- T+00:08:17
SECO-1
- T+00:08:28
Stage 1 Landing
Launch site & orbit
Cape Canaveral SFS, FL, USA
Launch site
Explore the launch pad on Earth using its published coordinates.
Explore Earth’s orbits
Coverage & sources
Links supplied by the mission data provider.
Coverage and times may change.
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