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SpaceXFalcon 9 Block 5Space Launch Complex 4E, Vandenberg SFB, CA, USA

Starlink Group 15-3

Launched

May 10, 2025 · 00:19 UTC

Launch Successful
Space X Starlink Mission Patch

Image: SpaceX

Summary

Starlink Group 15-3 launched on a SpaceX Falcon 9 Block 5 from Space Launch Complex 4E, Vandenberg SFB, CA, USA on May 10, 2025 at 00:19 UTC. The launch window ran from 00:03 to 02:21 UTC. It was SpaceX's 505th launch, 56th this year and humanity's 6,946th orbital launch attempt. It was the 415th Falcon 9 Block 5 flight and the 54th this year. Booster B1081 flew for the 14th time and landed at Of Course I Still Love You. The payload was bound for low Earth orbit (LEO). The tracked orbit of Starlink 33863, one of 26 catalogued objects, from May 15, 2025, was 297 × 303 km inclined 70.0°. 26 objects from this launch are catalogued, all of them payloads.

Booster
Mission
Communications · Low Earth Orbit (LEO)for SpX
Milestone
415th Falcon 9 Block 5 flight · 54th this yearSpaceX's 505th launch56th this yearhumanity's 6,946th orbital launch attempt97th orbital launch attempt this year

Flight preview

Simulate in Flight Club

Orbit: as tracked

70.0°Inclination
297 × 303 kmPerigee × apogeefrom mean elements
90.4 minPeriodfrom mean elements
292.5°Ascending node
518 d agoElement epoch2025-05-15 16:00 UTC · stale

Starlink 33863 · NORAD 63864 · 2025-094 · Space-Track · tracking 1 of 26 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
2025-094A
Epoch
2025-05-15 16:00:01 UTC
Mean motion
15.93284622 rev/day
Eccentricity
0.0004123
Inclination
69.9963°
Ascending node
292.5043°
Arg. of perigee
274.1986°
Mean anomaly
322.8998°
Element set
999
Rev at epoch
210
B*
-0.0027638

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 2 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+1M7SMax-Q
  12. T+2M25SMECO
  13. T+2M29SStage 2 Separation
  14. T+2M36SSES-1
  15. T+2M54SFairing Separation
  16. T+6M6SEntry Burn Startup
  17. T+6M30SEntry Burn Shutdown
  18. T+7M50SStage 1 Landing Burn
  19. T+8M13SStage 1 Landing
  20. T+8M40SSECO-1
  21. T+53M36SSES-2
  22. T+53M38SSECO-2
  23. T+1H2M30SStarlink Deployment

Catalogued objects

26 catalogued: 26 payloads; 25 still in orbit

  • Starlink 33863 · NORAD 63864 · in orbit
  • Starlink 33897 · NORAD 63865 · in orbit
  • Starlink 34022 · NORAD 63866 · in orbit
  • Starlink 33979 · NORAD 63867 · in orbit
  • Starlink 34007 · NORAD 63868 · in orbit
  • Starlink 34006 · NORAD 63869 · in orbit
  • Starlink 33986 · NORAD 63870 · in orbit
  • Starlink 34013 · NORAD 63871 · in orbit
  • Starlink 34059 · NORAD 63872 · in orbit
  • Starlink 33987 · NORAD 63873 · in orbit
  • Starlink 34052 · NORAD 63874 · in orbit
  • Starlink 34023 · NORAD 63875 · in orbit
Show 14 more payloads
  • Starlink 34061 · NORAD 63876 · re-entered May 8, 2026
  • Starlink 33778 · NORAD 63877 · in orbit
  • Starlink 33901 · NORAD 63878 · in orbit
  • Starlink 33812 · NORAD 63879 · in orbit
  • Starlink 33779 · NORAD 63880 · in orbit
  • Starlink 33905 · NORAD 63881 · in orbit
  • Starlink 34003 · NORAD 63882 · in orbit
  • Starlink 33968 · NORAD 63883 · in orbit
  • Starlink 33943 · NORAD 63884 · in orbit
  • Starlink 33858 · NORAD 63885 · in orbit
  • Starlink 33885 · NORAD 63886 · in orbit
  • Starlink 33904 · NORAD 63887 · in orbit
  • Starlink 33981 · NORAD 63888 · in orbit
  • Starlink 33738 · NORAD 63889 · in orbit

Data from J. McDowell, planet4589.org

About this launch

A batch of 26 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.

Pad

Map of Space Launch Complex 4E

Space Launch Complex 4E, Vandenberg SFB, CA, USA

191st launch from Space Launch Complex 4E, 17th this year · 805th from Vandenberg SFB, CA, USA

Local pad time at liftoff: May 9, 5:19 PM PDT, in daylight

303 launches from this pad · 919 from Vandenberg SFB, CA, USA

11 days after the previous launch from this pad

Updates

Launch success.

Show 9 earlier updates
  • Liftoff

    SwGustav · 5/10/2025 · source

  • Unofficial Re-stream by SPACE AFFAIRS has started

    LL2 · 5/10/2025 · source

  • Now targeting May 10 at 00:19 UTC

    SwGustav · 5/10/2025 · source

  • Tweaked T-0.

    Cosmic_Penguin · 5/9/2025 · source

  • GO for launch.

    Cosmic_Penguin · 5/8/2025 · source

  • Tweaked launch window.

    Cosmic_Penguin · 5/5/2025 · source

  • NET May 10 UTC.

    Cosmic_Penguin · 5/4/2025 · source

  • Delayed TBD with removal of official webpage.

    Cosmic_Penguin · 5/4/2025 · source

  • New T-0 is accurate to the second.

    Cosmic_Penguin · 5/3/2025 · source

Questions

When did Starlink Group 15-3 launch?

Starlink Group 15-3 launched on May 10, 2025 at 00:19 UTC. The launch window ran from 00:03 to 02:21 UTC.

Where can I watch Starlink Group 15-3?

Coverage: SpaceX Starlink Group 15-3; SpaceX - Falcon 9 - Starlink 15-3 - SLC-4E - Vandenberg SFB - May 9, 2025; Watch live: SpaceX launches 26 Starlink satellites from California on Falcon 9 rocket. Watch the replay

What rocket launched Starlink Group 15-3?

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

Where did Starlink Group 15-3 launch from?

Space Launch Complex 4E, Vandenberg SFB, CA, USA. Liftoff was May 9, 5:19 PM PDT local time at the pad.

Did the booster land?

Booster B1081 flew for the 14th time and landed at Of Course I Still Love You.

What orbit did Starlink Group 15-3 reach?

The tracked orbit of Starlink 33863, one of 26 catalogued objects, from May 15, 2025, was 297 × 303 km inclined 70.0°.

How many satellites did Starlink Group 15-3 launch?

26 payloads from this launch are catalogued, 25 of them still in orbit (Data from J. McDowell, planet4589.org).

Which program is Starlink Group 15-3 part of?

Starlink. About Starlink