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

Starlink Group 10-56

Launched

August 27, 2025 · 11:10 UTC

Launch Successful
Space X Starlink Mission Patch

Image: SpaceX

Summary

Starlink Group 10-56 launched on a SpaceX Falcon 9 Block 5 from Space Launch Complex 40, Cape Canaveral SFS, FL, USA on August 27, 2025 at 11:10 UTC. The launch window ran from 10:53 to 14:53 UTC. It was SpaceX's 558th launch, 109th this year and humanity's 7,044th orbital launch attempt. It was the 466th Falcon 9 Block 5 flight and the 105th this year. Booster B1095 flew for the 2nd time and landed at Just Read the Instructions. The payload was bound for low Earth orbit (LEO). The tracked orbit of Starlink 34899, one of 28 catalogued objects, from September 5, 2025, was 311 × 313 km inclined 53.2°. 28 objects from this launch are catalogued, all of them payloads.

Booster
  • B1095 · flight 2 · Autonomous Spaceport Drone Ship at Just Read the Instructions · landed156/157 landed here · 98 days after its previous flight, Starlink Group 12-15 · 600 km downrange
Mission
Communications · Low Earth Orbit (LEO)for SpX
Milestone
466th Falcon 9 Block 5 flight · 105th this yearSpaceX's 558th launch109th this yearhumanity's 7,044th orbital launch attempt195th orbital launch attempt this year

Flight preview

Simulate in Flight Club

Orbit: as tracked

53.2°Inclination
311 × 313 kmPerigee × apogeefrom mean elements
90.6 minPeriodfrom mean elements
352.1°Ascending node
405 d agoElement epoch2025-09-05 22:00 UTC · stale

Starlink 34899 · NORAD 65323 · 2025-189 · Space-Track · tracking 1 of 28 objects

Show the numbers for orbit elements
Object
STARLINK-3489
Object ID
2025-189A
Epoch
2025-09-05 22:00:00 UTC
Mean motion
15.89151036 rev/day
Eccentricity
0.00011346
Inclination
53.157°
Ascending node
352.0739°
Arg. of perigee
83.3304°
Mean anomaly
73.5884°
Element set
999
Rev at epoch
272
B*
-0.0067608856

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 3 min
  1. T−38MGO for Prop Load
  2. T−35MProp Load
  3. T−35MStage 1 LOX 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+2M35SSES-1
  15. T+2M55SFairing Separation
  16. T+6M8SEntry Burn Startup
  17. T+6M33SEntry Burn Shutdown
  18. T+7M59SStage 1 Landing Burn
  19. T+8M23SStage 1 Landing
  20. T+8M37SSECO-1
  21. T+54M33SSES-2
  22. T+54M35SSECO-2
  23. T+1H3M55SStarlink Deployment

Catalogued objects

28 catalogued: 28 payloads; 28 still in orbit

  • Starlink 34899 · NORAD 65323 · in orbit
  • Starlink 34196 · NORAD 65324 · in orbit
  • Starlink 34911 · NORAD 65325 · in orbit
  • Starlink 34902 · NORAD 65326 · in orbit
  • Starlink 34880 · NORAD 65327 · in orbit
  • Starlink 34885 · NORAD 65328 · in orbit
  • Starlink 34908 · NORAD 65329 · in orbit
  • Starlink 34864 · NORAD 65330 · in orbit
  • Starlink 34918 · NORAD 65331 · in orbit
  • Starlink 33890 · NORAD 65332 · in orbit
  • Starlink 34602 · NORAD 65333 · in orbit
  • Starlink 34878 · NORAD 65334 · in orbit
Show 16 more payloads
  • Starlink 34874 · NORAD 65335 · in orbit
  • Starlink 34835 · NORAD 65336 · in orbit
  • Starlink 34854 · NORAD 65337 · in orbit
  • Starlink 34751 · NORAD 65338 · in orbit
  • Starlink 34777 · NORAD 65339 · in orbit
  • Starlink 35020 · NORAD 65340 · in orbit
  • Starlink 35016 · NORAD 65341 · in orbit
  • Starlink 35092 · NORAD 65342 · in orbit
  • Starlink 34838 · NORAD 65343 · in orbit
  • Starlink 35088 · NORAD 65344 · in orbit
  • Starlink 34831 · NORAD 65345 · in orbit
  • Starlink 34873 · NORAD 65346 · in orbit
  • Starlink 34881 · NORAD 65347 · in orbit
  • Starlink 34859 · NORAD 65348 · in orbit
  • Starlink 34895 · NORAD 65349 · in orbit
  • Starlink 34892 · NORAD 65350 · 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

330th launch from Space Launch Complex 40, 50th this year · 1,048th from Cape Canaveral SFS, FL, USA

Local pad time at liftoff: Aug 27, 7:10 AM EDT, in daylight

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

3 days 4 hours after the previous launch from this pad

Updates

Launch success.

Show 4 earlier updates
  • Liftoff.

    Cosmic_Penguin · 8/27/2025 · source

  • Unofficial Re-stream by SPACE AFFAIRS has started

    LL2 · 8/27/2025 · source

  • Now targeting Aug 27 at 11:10 UTC

    Cosmic_Penguin · 8/26/2025 · source

  • Added launch.

    Cosmic_Penguin · 8/20/2025 · source

Questions

When did Starlink Group 10-56 launch?

Starlink Group 10-56 launched on August 27, 2025 at 11:10 UTC. The launch window ran from 10:53 to 14:53 UTC.

Where can I watch Starlink Group 10-56?

Coverage: SpaceX Starlink Group 10-56; SpaceX - Falcon 9 - Starlink 10-56 - SLC-40 - Cape Canaveral SFS - August 27, 2025; Watch live: SpaceX Falcon 9 rocket lifts off from Cape Canaveral with 28 Starlink satellites. Watch the replay

What rocket launched Starlink Group 10-56?

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

Where did Starlink Group 10-56 launch from?

Space Launch Complex 40, Cape Canaveral SFS, FL, USA. Liftoff was Aug 27, 7:10 AM EDT local time at the pad.

Did the booster land?

Booster B1095 flew for the 2nd time and landed at Just Read the Instructions.

What orbit did Starlink Group 10-56 reach?

The tracked orbit of Starlink 34899, one of 28 catalogued objects, from September 5, 2025, was 311 × 313 km inclined 53.2°.

How many satellites did Starlink Group 10-56 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 10-56 part of?

Starlink. About Starlink