NROL-77
Falcon 9 Block 5
SpaceX
Rocket Launch Videos
Trajectory
Detailed trajectory information from FlightClub.io is currently unavailable. This page will be updated with trajectory details as soon as they are released. Please check back for updates.
Rocket Launch Timeline
Enhance your rocket launch experience with a detailed timeline! From pre-launch preparations to post-launch milestones, a well-structured schedule ensures every step—payload prep, safety checks, and liftoff—runs smoothly. Stay informed and follow the action with precision.
| T- 00 : 38 : 00 | GO for Prop Load Launch director verifies go for propellant load |
| T- 00 : 35 : 00 | Prop Load Start of propelland loading |
| T- 00 : 35 : 00 | Stage 1 LOX Load Start of liquid oxygen loading in the first stage |
| T- 00 : 16 : 00 | Stage 2 LOX Load Start of liquid oxygen loading in the second stage |
| T- 00 : 07 : 00 | Engine Chill Start of engine chilling |
| T- 00 : 01 : 00 | Tank Press Fuel tanks are pressurized to flight levels |
| T- 00 : 01 : 00 | Startup The onboard computer takes control over the countdown and runs last checks |
| T- 00 : 00 : 45 | GO for Launch Launch director verifies go for launch |
| T- 00 : 00 : 03 | Ignition Start of the engine ignition sequence |
| T+ 00 : 00 : 00 | Liftoff First upwards movement of the rocket |
| T+ 00 : 01 : 12 | Max-Q Maximum dynamic pressure |
| T+ 00 : 02 : 12 | MECO Cut-off of the main engine |
| T+ 00 : 02 : 15 | Stage 2 Separation Separation of the second stage from the first |
| T+ 00 : 02 : 23 | SES-1 First start of the second engine |
| T+ 00 : 02 : 28 | Booster Boostback Burn Startup Start of the booster boostback burn |
| T+ 00 : 03 : 04 | Fairing Separation Separation of the payload fairing |
| T+ 00 : 03 : 22 | Booster Boostback Burn Shutdown End of the booster boostback burn |
| T+ 00 : 06 : 44 | Entry Burn Startup Start of the atmospheric entry burn |
| T+ 00 : 07 : 04 | Entry Burn Shutdown End of the atmospheric entry burn |
| T+ 00 : 08 : 01 | Stage 1 Landing Burn Start of the first stage landing burn |
| T+ 00 : 08 : 17 | SECO-1 First cut-off of the second engine |
| T+ 00 : 08 : 28 | Stage 1 Landing Landing of the first stage |
Mission
NROL-77
- Type: Government/Top Secret
- Orbit: Unknown
- Launch Cost: $52,000,000
Classified payload for the US National Reconnaissance Office.
Location
Space Launch Complex 40
Cape Canaveral SFS, FL, USA
Find the best place to watch the launch from Florida
Space Launch Complex 40 has witnessed the launch of 350 rockets, including 350 orbital launch attempts. While Cape Canaveral SFS, FL, USA, has been the site for 1071 rocket launches.
Cape Canaveral Space Force Station (CCSFS) is an installation of the United States Space Force's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida.
Rocket
SpaceX 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.
Landing
Core B1096
The Falcon 9 first stage B1096 will attempt to land back at the launch site at Landing Zone 2 (LZ-2) after its 4th flight. Booster B1096 last launched 11/11/2025 and has seen 3 successful launches and landings. Falcon 9 booster.
A sonic boom is likely to occur a few minutes after launch as the booster returns to the launch site. Be prepared for a loud but thrilling experience! Learn more about rocket launch sonic booms
Landing Zone 2 - LZ-2
LZ-2 Pad located at Cape Canaveral Space Force Station at the previous LC-13. Directly next to LZ-1
Return to Launch Site - RTLS
A return to launch site usually means that after stage separation the booster flips and does a burn back towards the launch site, landing near where it initially launched from.
Agency
SpaceX
Space Exploration Technologies Corp., known as SpaceX, is an American aerospace manufacturer and space transport services company headquartered in Hawthorne, California. It was founded in 2002 by entrepreneur Elon Musk with the goal of reducing space transportation costs and enabling the colonization of Mars. SpaceX operates from many pads, on the East Coast of the US they operate from SLC-40 at Cape Canaveral Space Force Station and historic LC-39A at Kennedy Space Center. They also operate from SLC-4E at Vandenberg Space Force Base, California, usually for polar launches. Another launch site is being developed at Boca Chica, Texas.
