SpaceXFalcon 9 Block 5Space Launch Complex 4E, Vandenberg SFB, CA, USA
Starlink Group 17-8
Launched
September 3, 2025 · 03:51 UTC
Image: SpaceX
Summary
Starlink Group 17-8 launched on a SpaceX Falcon 9 Block 5 from Space Launch Complex 4E, Vandenberg SFB, CA, USA on September 3, 2025 at 03:51 UTC. The launch window ran from 02:33 to 06:33 UTC. It was SpaceX's 562nd launch, 113th this year and humanity's 7,049th orbital launch attempt. It was the 470th Falcon 9 Block 5 flight and the 109th this year. Booster B1097 flew for the 1st time and landed at Of Course I Still Love You. The payload was bound for low Earth orbit (LEO). The tracked orbit of Starlink 35142, one of 24 catalogued objects, from September 13, 2025, was 383 × 386 km inclined 97.6°. 24 objects from this launch are catalogued, all of them payloads.
- Watch
- Vehicle
- Falcon 9 Block 5 · SpaceXStarlink
- Booster
- B1097 · flight 1 · Autonomous Spaceport Drone Ship at Of Course I Still Love You · landed209/217 landed here · 574 km downrange
- Mission
- Communications · Low Earth Orbit (LEO)for SpX
- Milestone
- 470th Falcon 9 Block 5 flight · 109th this yearSpaceX's 562nd launch113th this yearhumanity's 7,049th orbital launch attempt200th orbital launch attempt this year
Flight preview
Simulate in Flight ClubOrbit: as tracked
Starlink 35142 · NORAD 65434 · 2025-194 · Space-Track · tracking 1 of 24 objects
Show the numbers for orbit elements
- Object
- STARLINK-35142
- Object ID
- 2025-194A
- Epoch
- 2025-09-13 06:00:02 UTC
- Mean motion
- 15.63498217 rev/day
- Eccentricity
- 0.00021598
- Inclination
- 97.6027°
- Ascending node
- 107.2899°
- Arg. of perigee
- 71.8326°
- Mean anomaly
- 51.9285°
- Element set
- 999
- Rev at epoch
- 200
- B*
- -0.030952281
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−35MProp Load
- T−35MStage 1 LOX 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+2M25SMECO
- T+2M28SStage 2 Separation
- T+2M35SSES-1
- T+2M55SFairing Separation
- T+6M4SEntry Burn Startup
- T+6M29SEntry Burn Shutdown
- T+7M56SStage 1 Landing Burn
- T+8M20SStage 1 Landing
- T+8M39SSECO-1
- T+53M34SSES-2
- T+53M35SSECO-2
- T+1H2M25SStarlink Deployment
Catalogued objects
24 catalogued: 24 payloads; 24 still in orbit
- Starlink 35142 · NORAD 65434 · in orbit
- Starlink 34978 · NORAD 65435 · in orbit
- Starlink 35043 · NORAD 65436 · in orbit
- Starlink 35080 · NORAD 65437 · in orbit
- Starlink 35068 · NORAD 65438 · in orbit
- Starlink 35045 · NORAD 65439 · in orbit
- Starlink 35050 · NORAD 65440 · in orbit
- Starlink 35065 · NORAD 65441 · in orbit
- Starlink 34679 · NORAD 65442 · in orbit
- Starlink 34678 · NORAD 65443 · in orbit
- Starlink 35049 · NORAD 65444 · in orbit
- Starlink 35029 · NORAD 65445 · in orbit
Show 12 more payloads
- Starlink 34991 · NORAD 65446 · in orbit
- Starlink 34920 · NORAD 65447 · in orbit
- Starlink 35030 · NORAD 65448 · in orbit
- Starlink 35009 · NORAD 65449 · in orbit
- Starlink 34970 · NORAD 65450 · in orbit
- Starlink 35039 · NORAD 65451 · in orbit
- Starlink 35084 · NORAD 65452 · in orbit
- Starlink 34988 · NORAD 65453 · in orbit
- Starlink 35059 · NORAD 65454 · in orbit
- Starlink 34728 · NORAD 65455 · in orbit
- Starlink 35005 · NORAD 65456 · in orbit
- Starlink 35076 · NORAD 65457 · in orbit
Data from J. McDowell, planet4589.org
About this launch
A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Pad
Space Launch Complex 4E, Vandenberg SFB, CA, USA
213th launch from Space Launch Complex 4E, 39th this year · 827th from Vandenberg SFB, CA, USA
Local pad time at liftoff: Sep 2, 8:51 PM PDT, at night
303 launches from this pad · 919 from Vandenberg SFB, CA, USA
3 days 22 hours after the previous launch from this pad
Updates
Launch success.
Show 7 earlier updates
Liftoff.
Cosmic_Penguin · 9/3/2025 · source
Unofficial Re-stream by SPACE AFFAIRS has started
LL2 · 9/3/2025 · source
Now targeting Sep 03 at 03:51 UTC
Cosmic_Penguin · 9/2/2025 · source
Now targeting Sep 03 at 03:21 UTC
Nosu · 9/2/2025 · source
Now targeting Sep 03 at 03:13 UTC
Cosmic_Penguin · 9/2/2025 · source
GO for launch.
Cosmic_Penguin · 8/29/2025 · source
Added launch.
Cosmic_Penguin · 8/26/2025 · source
Questions
When did Starlink Group 17-8 launch?
Starlink Group 17-8 launched on September 3, 2025 at 03:51 UTC. The launch window ran from 02:33 to 06:33 UTC.
Where can I watch Starlink Group 17-8?
Coverage: SpaceX Starlink Group 17-8; SpaceX - Falcon 9 - Starlink 17-8 - SLC-4E - Vandenberg SFB, CA - September 3, 2025; Live: SpaceX Falcon 9 rocket launches Starlink satellites from Vandenberg Space Force Base, Calif.. Watch the replay
What rocket launched Starlink Group 17-8?
Falcon 9 Block 5, flown by SpaceX. Falcon 9 Block 5 spec sheet
Where did Starlink Group 17-8 launch from?
Space Launch Complex 4E, Vandenberg SFB, CA, USA. Liftoff was Sep 2, 8:51 PM PDT local time at the pad.
Did the booster land?
Booster B1097 flew for the 1st time and landed at Of Course I Still Love You.
What orbit did Starlink Group 17-8 reach?
The tracked orbit of Starlink 35142, one of 24 catalogued objects, from September 13, 2025, was 383 × 386 km inclined 97.6°.
How many satellites did Starlink Group 17-8 launch?
24 payloads from this launch are catalogued, 24 of them still in orbit (Data from J. McDowell, planet4589.org).
Which program is Starlink Group 17-8 part of?
Starlink. About Starlink