SpaceXFalcon 9 Block 5Launch Complex 39A, Kennedy Space Center, FL, USA
Starlink Group 6-51
Launched
April 17, 2024 · 21:26 UTC
Image: SpaceX
Summary
Starlink Group 6-51 launched on a SpaceX Falcon 9 Block 5 from Launch Complex 39A, Kennedy Space Center, FL, USA on April 17, 2024 at 21:26 UTC. The launch window ran from 21:26 to 01:24 UTC. It was SpaceX's 351st launch, 40th this year and humanity's 6,663rd orbital launch attempt. It was the 268th Falcon 9 Block 5 flight and the 39th this year. Booster B1077 flew for the 12th time and landed at Just Read the Instructions. The payload was bound for low Earth orbit (LEO). Starlink 31635, one of 23 catalogued objects, reached a 291 × 299 km orbit inclined 43.0°. 23 objects from this launch are catalogued, all of them payloads.
- Watch
- Vehicle
- Falcon 9 Block 5 · SpaceXStarlink
- Booster
- B1077 · flight 12 · Autonomous Spaceport Drone Ship at Just Read the Instructions · landed156/157 landed here · 37 days after its previous flight, Starlink Group 6-43 · 604 km downrange
- Mission
- Communications · Low Earth Orbit (LEO)for SpX
- Milestone
- 268th Falcon 9 Block 5 flight · 39th this yearSpaceX's 351st launch40th this yearhumanity's 6,663rd orbital launch attempt74th orbital launch attempt this year
Flight preview
Simulate in Flight ClubOrbit: as tracked
Starlink 31635 · NORAD 59511 · 2024-073 · Space-Track · tracking 1 of 23 objects
Show the numbers for orbit elements
- Object
- STARLINK-31635
- Object ID
- 2024-073A
- Epoch
- 2024-04-18 10:25:42 UTC
- Mean motion
- 15.95002046 rev/day
- Eccentricity
- 0.000597
- Inclination
- 43.0079°
- Ascending node
- 301.9702°
- Arg. of perigee
- 238.3245°
- Mean anomaly
- 111.5166°
- Element set
- 999
- Rev at epoch
- 130
- B*
- 0.0027825
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.
Flight timeline
- T−38MGO for Prop Load
- T−35MStage 1 LOX Load
- T−35MProp Load
- T−16MStage 2 LOX Load
- T−7MEngine Chill
- T−1MStartup
- T−1MTank Press
- T−45SGO for Launch
- T−3SIgnition
- T−0Liftoff
- T+1M12SMax-Q
- T+2M26SMECO
- T+2M29SStage 2 Separation
- T+2M36SSES-1
- T+2M56SFairing Separation
- T+6M9SEntry Burn Startup
- T+6M33SEntry Burn Shutdown
- T+8M1SStage 1 Landing Burn
- T+8M24SStage 1 Landing
- T+8M39SSECO-1
- T+54M4SSES-2
- T+54M6SSECO-2
- T+1H5M13SStarlink Deployment
Catalogued objects
23 catalogued: 23 payloads; 18 still in orbit
- Starlink 31635 · NORAD 59511 · in orbit
- Starlink 31650 · NORAD 59512 · in orbit
- Starlink 31658 · NORAD 59513 · in orbit
- Starlink 31664 · NORAD 59514 · re-entered February 22, 2025
- Starlink 31669 · NORAD 59515 · in orbit
- Starlink 31671 · NORAD 59516 · in orbit
- Starlink 31674 · NORAD 59517 · in orbit
- Starlink 31672 · NORAD 59518 · re-entered August 12, 2024
- Starlink 31679 · NORAD 59519 · in orbit
- Starlink 31370 · NORAD 59520 · in orbit
- Starlink 31404 · NORAD 59521 · in orbit
- Starlink 31453 · NORAD 59522 · in orbit
Show 11 more payloads
- Starlink 31476 · NORAD 59523 · in orbit
- Starlink 31376 · NORAD 59524 · re-entered September 15, 2025
- Starlink 31538 · NORAD 59525 · in orbit
- Starlink 31564 · NORAD 59526 · in orbit
- Starlink 31452 · NORAD 59527 · in orbit
- Starlink 31618 · NORAD 59528 · re-entered December 3, 2025
- Starlink 31513 · NORAD 59529 · in orbit
- Starlink 31392 · NORAD 59530 · in orbit
- Starlink 31619 · NORAD 59531 · in orbit
- Starlink 31624 · NORAD 59532 · re-entered August 22, 2025
- Starlink 31509 · NORAD 59533 · in orbit
Data from J. McDowell, planet4589.org
About this launch
A batch of 23 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Pad
Launch Complex 39A, Kennedy Space Center, FL, USA
177th launch from Launch Complex 39A, 9th this year · 235th from Kennedy Space Center, FL, USA
Local pad time at liftoff: Apr 17, 5:26 PM EDT, in daylight
224 launches from this pad · 283 from Kennedy Space Center, FL, USA
9 days 22 hours after the previous launch from this pad
Updates
Launch success.
Show 9 earlier updates
Liftoff.
Cosmic_Penguin · 4/17/2024 · source
Unofficial Re-stream by SPACE AFFAIRS has started
LL2 · 4/17/2024 · source
Launch window accurate to the second
Nosu · 4/17/2024 · source
Setting GO
Nosu · 4/16/2024 · source
Weather 90%
Nosu · 4/16/2024 · source
Assigning launch pad.
Cosmic_Penguin · 4/13/2024 · source
Updated launch window.
Cosmic_Penguin · 4/12/2024 · source
Adding window opening time
Nosu · 4/11/2024 · source
Targeting NET April 17 UTC per NOTAM F1372/24 and A1244/24.
Cosmic_Penguin · 4/11/2024 · source
Questions
When did Starlink Group 6-51 launch?
Starlink Group 6-51 launched on April 17, 2024 at 21:26 UTC. The launch window ran from 21:26 to 01:24 UTC.
Where can I watch Starlink Group 6-51?
Coverage: SpaceX Starlink Group 6-51; SpaceX - Falcon 9 - Starlink Group 6-51 - LC-39A - Kennedy Space Center - April 17, 2024; Watch live: SpaceX launches 23 Starlink satellites on a Falcon 9 rocket from Florida. Watch the replay
What rocket launched Starlink Group 6-51?
Falcon 9 Block 5, flown by SpaceX. Falcon 9 Block 5 spec sheet
Where did Starlink Group 6-51 launch from?
Launch Complex 39A, Kennedy Space Center, FL, USA. Liftoff was Apr 17, 5:26 PM EDT local time at the pad.
Did the booster land?
Booster B1077 flew for the 12th time and landed at Just Read the Instructions.
What orbit did Starlink Group 6-51 reach?
Starlink 31635, one of 23 catalogued objects, reached a 291 × 299 km orbit inclined 43.0°.
How many satellites did Starlink Group 6-51 launch?
23 payloads from this launch are catalogued, 18 of them still in orbit (Data from J. McDowell, planet4589.org).
Which program is Starlink Group 6-51 part of?
Starlink. About Starlink