SpaceXFalcon 9 Block 5Space Launch Complex 4E, Vandenberg SFB, CA, USA
Starlink Group 17-4
Launched
August 14, 2025 · 05:05 UTC
Image: SpaceX
Summary
Starlink Group 17-4 launched on a SpaceX Falcon 9 Block 5 from Space Launch Complex 4E, Vandenberg SFB, CA, USA on August 14, 2025 at 05:05 UTC. The launch window ran from 02:05 to 06:05 UTC. It was SpaceX's 550th launch, 101st this year and humanity's 7,029th orbital launch attempt. It was the 459th Falcon 9 Block 5 flight and the 98th this year. Booster B1093 flew for the 5th time and landed at Of Course I Still Love You. The payload was bound for low Earth orbit (LEO). The tracked orbit of Starlink 34956, one of 24 catalogued objects, from August 20, 2025, was 290 × 291 km inclined 97.6°. 24 objects from this launch are catalogued, all of them payloads.
- Watch
- Vehicle
- Falcon 9 Block 5 · SpaceXStarlink
- Booster
- B1093 · flight 5 · Autonomous Spaceport Drone Ship at Of Course I Still Love You · landed209/217 landed here · 29 days after its previous flight, Starlink Group 15-2 · 574 km downrange
- Mission
- Communications · Low Earth Orbit (LEO)for SpX
- Milestone
- 459th Falcon 9 Block 5 flight · 98th this yearSpaceX's 550th launch101st this yearhumanity's 7,029th orbital launch attempt180th orbital launch attempt this year
Flight preview
Simulate in Flight ClubOrbit: as tracked
Starlink 34956 · NORAD 65174 · 2025-175 · Space-Track · tracking 1 of 24 objects
Show the numbers for orbit elements
- Object
- STARLINK-34956
- Object ID
- 2025-175A
- Epoch
- 2025-08-20 14:00:01 UTC
- Mean motion
- 15.96852898 rev/day
- Eccentricity
- 0.0001028
- Inclination
- 97.6029°
- Ascending node
- 102.1841°
- Arg. of perigee
- 72.3247°
- Mean anomaly
- 24.9534°
- Element set
- 999
- Rev at epoch
- 218
- B*
- -0.0026385
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+2M26SMECO
- T+2M29SStage 2 Separation
- T+2M36SSES-1
- T+2M54SFairing Separation
- T+6M10SEntry Burn Startup
- T+6M33SEntry Burn Shutdown
- T+7M54SStage 1 Landing Burn
- T+8M23SStage 1 Landing
- T+8M39SSECO-1
- T+54M15SSES-2
- T+54M16SSECO-2
- T+1H3M7SStarlink Deployment
Catalogued objects
24 catalogued: 24 payloads; 24 still in orbit
- Starlink 34956 · NORAD 65174 · in orbit
- Starlink 34949 · NORAD 65175 · in orbit
- Starlink 34707 · NORAD 65176 · in orbit
- Starlink 34967 · NORAD 65177 · in orbit
- Starlink 34929 · NORAD 65178 · in orbit
- Starlink 34932 · NORAD 65179 · in orbit
- Starlink 34862 · NORAD 65180 · in orbit
- Starlink 34942 · NORAD 65181 · in orbit
- Starlink 34944 · NORAD 65182 · in orbit
- Starlink 34939 · NORAD 65183 · in orbit
- Starlink 34947 · NORAD 65184 · in orbit
- Starlink 34945 · NORAD 65185 · in orbit
Show 12 more payloads
- Starlink 34965 · NORAD 65186 · in orbit
- Starlink 34915 · NORAD 65187 · in orbit
- Starlink 34972 · NORAD 65188 · in orbit
- Starlink 34866 · NORAD 65189 · in orbit
- Starlink 34917 · NORAD 65190 · in orbit
- Starlink 34948 · NORAD 65191 · in orbit
- Starlink 34955 · NORAD 65192 · in orbit
- Starlink 34950 · NORAD 65193 · in orbit
- Starlink 34926 · NORAD 65194 · in orbit
- Starlink 34928 · NORAD 65195 · in orbit
- Starlink 34927 · NORAD 65196 · in orbit
- Starlink 34952 · NORAD 65197 · 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
208th launch from Space Launch Complex 4E, 34th this year · 822nd from Vandenberg SFB, CA, USA
Local pad time at liftoff: Aug 13, 10:05 PM PDT, at night
303 launches from this pad · 919 from Vandenberg SFB, CA, USA
13 days after the previous launch from this pad
Updates
Launch success.
Show 9 earlier updates
Liftoff.
Cosmic_Penguin · 8/14/2025 · source
Now targeting Aug 14 at 05:05 UTC
Cosmic_Penguin · 8/14/2025 · source
Now targeting Aug 14 at 04:26 UTC
Cosmic_Penguin · 8/13/2025 · source
Now targeting Aug 14 at 03:43 UTC
Cosmic_Penguin · 8/13/2025 · source
Delayed to NET August 14 UTC.
Cosmic_Penguin · 8/12/2025 · source
Now targeting Aug 13 at 02:05 UTC
SwGustav · 8/11/2025 · source
Now targeting Aug 12 at 03:44 UTC
hitura-nobad · 8/11/2025 · source
Delayed to NET August 12.
Cosmic_Penguin · 8/10/2025 · source
Delayed to NET August 11 UTC.
Cosmic_Penguin · 8/9/2025 · source
Questions
When did Starlink Group 17-4 launch?
Starlink Group 17-4 launched on August 14, 2025 at 05:05 UTC. The launch window ran from 02:05 to 06:05 UTC.
Where can I watch Starlink Group 17-4?
Coverage: SpaceX Starlink Group 17-4; SpaceX - Falcon 9 - Starlink 17-4 - SLC-4E - Vandenberg SFB - August 13, 2025; Watch live: SpaceX Falcon 9 rocket launches 24 Starlink satellites from Vandenberg, California. Watch the replay
What rocket launched Starlink Group 17-4?
Falcon 9 Block 5, flown by SpaceX. Falcon 9 Block 5 spec sheet
Where did Starlink Group 17-4 launch from?
Space Launch Complex 4E, Vandenberg SFB, CA, USA. Liftoff was Aug 13, 10:05 PM PDT local time at the pad.
Did the booster land?
Booster B1093 flew for the 5th time and landed at Of Course I Still Love You.
What orbit did Starlink Group 17-4 reach?
The tracked orbit of Starlink 34956, one of 24 catalogued objects, from August 20, 2025, was 290 × 291 km inclined 97.6°.
How many satellites did Starlink Group 17-4 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 17-4 part of?
Starlink. About Starlink