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SpaceXFalcon 9 Block 5Space Launch Complex 40, Cape Canaveral SFS, FL, USA

Starlink Group 10-27

Launched

September 21, 2025 · 10:53 UTC

Launch SuccessfulWeather 90% go
Space X Starlink Mission Patch

Image: SpaceX

Summary

Starlink Group 10-27 launched on a SpaceX Falcon 9 Block 5 from Space Launch Complex 40, Cape Canaveral SFS, FL, USA on September 21, 2025 at 10:53 UTC. The launch window ran from 09:20 to 13:20 UTC. It was SpaceX's 572nd launch, 123rd this year and humanity's 7,067th orbital launch attempt. It was the 480th Falcon 9 Block 5 flight and the 119th this year. Booster B1085 flew for the 11th time and landed at A Shortfall of Gravitas. The payload was bound for low Earth orbit (LEO). The tracked orbit of Starlink 35189, one of 28 catalogued objects, from October 7, 2025, was 361 × 364 km inclined 53.2°. 28 objects from this launch are catalogued, all of them payloads.

Booster
  • B1085 · flight 11 · Autonomous Spaceport Drone Ship at A Shortfall of Gravitas · landed161/162 landed here · 37 days after its previous flight, Starlink Group 10-20 · 600 km downrange
Mission
Communications · Low Earth Orbit (LEO)for SpX
Milestone
480th Falcon 9 Block 5 flight · 119th this yearSpaceX's 572nd launch123rd this yearhumanity's 7,067th orbital launch attempt218th orbital launch attempt this year

Flight preview

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Orbit: as tracked

53.2°Inclination
361 × 364 kmPerigee × apogeefrom mean elements
91.6 minPeriodfrom mean elements
339.3°Ascending node
373 d agoElement epoch2025-10-07 12:42 UTC · stale

Starlink 35189 · NORAD 65676 · 2025-212 · Space-Track · tracking 1 of 28 objects

Show the numbers for orbit elements
Object
STARLINK-35189
Object ID
2025-212A
Epoch
2025-10-07 12:42:46 UTC
Mean motion
15.71241029 rev/day
Eccentricity
0.0002042
Inclination
53.1573°
Ascending node
339.2617°
Arg. of perigee
196.147°
Mean anomaly
163.9483°
Element set
999
Rev at epoch
371
B*
0.0025389

Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.

Flight timeline

23 steps, T−38 min to T+1 h 4 min
  1. T−38MGO for Prop Load
  2. T−35MStage 1 LOX Load
  3. T−35MProp Load
  4. T−16MStage 2 LOX Load
  5. T−7MEngine Chill
  6. T−1MStartup
  7. T−1MTank Press
  8. T−45SGO for Launch
  9. T−3SIgnition
  10. T−0Liftoff
  11. T+1M12SMax-Q
  12. T+2M24SMECO
  13. T+2M28SStage 2 Separation
  14. T+2M36SSES-1
  15. T+2M56SFairing Separation
  16. T+6M11SEntry Burn Startup
  17. T+6M37SEntry Burn Shutdown
  18. T+8MStage 1 Landing Burn
  19. T+8M24SStage 1 Landing
  20. T+8M39SSECO-1
  21. T+54M56SSES-2
  22. T+54M57SSECO-2
  23. T+1H4M18SStarlink Deployment

Catalogued objects

28 catalogued: 28 payloads; 28 still in orbit

  • Starlink 35189 · NORAD 65676 · in orbit
  • Starlink 35222 · NORAD 65677 · in orbit
  • Starlink 35233 · NORAD 65678 · in orbit
  • Starlink 35205 · NORAD 65679 · in orbit
  • Starlink 35070 · NORAD 65680 · in orbit
  • Starlink 35230 · NORAD 65681 · in orbit
  • Starlink 35235 · NORAD 65682 · in orbit
  • Starlink 34886 · NORAD 65683 · in orbit
  • Starlink 34795 · NORAD 65684 · in orbit
  • Starlink 35145 · NORAD 65685 · in orbit
  • Starlink 35137 · NORAD 65686 · in orbit
  • Starlink 34856 · NORAD 65687 · in orbit
Show 16 more payloads
  • Starlink 34930 · NORAD 65688 · in orbit
  • Starlink 34875 · NORAD 65689 · in orbit
  • Starlink 34790 · NORAD 65690 · in orbit
  • Starlink 34691 · NORAD 65691 · in orbit
  • Starlink 34825 · NORAD 65692 · in orbit
  • Starlink 35060 · NORAD 65693 · in orbit
  • Starlink 35204 · NORAD 65694 · in orbit
  • Starlink 35221 · NORAD 65695 · in orbit
  • Starlink 34734 · NORAD 65696 · in orbit
  • Starlink 35113 · NORAD 65697 · in orbit
  • Starlink 35090 · NORAD 65698 · in orbit
  • Starlink 35086 · NORAD 65699 · in orbit
  • Starlink 35101 · NORAD 65700 · in orbit
  • Starlink 35046 · NORAD 65701 · in orbit
  • Starlink 35075 · NORAD 65702 · in orbit
  • Starlink 34839 · NORAD 65703 · in orbit

Data from J. McDowell, planet4589.org

About this launch

A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.

Pad

Map of Space Launch Complex 40

Space Launch Complex 40, Cape Canaveral SFS, FL, USA

336th launch from Space Launch Complex 40, 56th this year · 1,054th from Cape Canaveral SFS, FL, USA

Local pad time at liftoff: Sep 21, 6:53 AM EDT, in twilight

403 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA

3 days 1 hour after the previous launch from this pad

Updates

Launch success.

Show 5 earlier updates
  • Liftoff

    hitura-nobad · 9/21/2025 · source

  • Unofficial Re-stream by SPACE AFFAIRS has started

    LL2 · 9/21/2025 · source

  • Now targeting Sep 21 at 10:53 UTC

    Nosu · 9/20/2025 · source

  • Weather is 90% favorable for launch.

    hitura-nobad · 9/19/2025 · source

  • Added launch.

    Cosmic_Penguin · 9/10/2025 · source

Questions

When did Starlink Group 10-27 launch?

Starlink Group 10-27 launched on September 21, 2025 at 10:53 UTC. The launch window ran from 09:20 to 13:20 UTC.

Where can I watch Starlink Group 10-27?

Coverage: SpaceX Starlink Group 10-27; Watch Live: SpaceX Falcon 9 rocket to launch 28 Starlink satellites from Cape Canaveral; SpaceX Launches Starlink 10-27 Mission. Watch the replay

What rocket launched Starlink Group 10-27?

Falcon 9 Block 5, flown by SpaceX. Falcon 9 Block 5 spec sheet

Where did Starlink Group 10-27 launch from?

Space Launch Complex 40, Cape Canaveral SFS, FL, USA. Liftoff was Sep 21, 6:53 AM EDT local time at the pad.

Did the booster land?

Booster B1085 flew for the 11th time and landed at A Shortfall of Gravitas.

What orbit did Starlink Group 10-27 reach?

The tracked orbit of Starlink 35189, one of 28 catalogued objects, from October 7, 2025, was 361 × 364 km inclined 53.2°.

How many satellites did Starlink Group 10-27 launch?

28 payloads from this launch are catalogued, 28 of them still in orbit (Data from J. McDowell, planet4589.org).

Which program is Starlink Group 10-27 part of?

Starlink. About Starlink