Starlink Group 17-39

About this mission

Starlink Group 17-39 lifted off on July 21, 2026 (10 days ago) on a Falcon 9 Block 5 from Space Launch Complex 4E, Vandenberg SFB, CA, USA, adding 24 Starlink satellites to SpaceX's broadband constellation.

Flying from Vandenberg Space Force Base on the California coast, the rocket headed out over the Pacific — the trajectory SpaceX uses for Starlink's higher-inclination and polar shells, which extend coverage toward far northern and southern latitudes.

Starlink satellites are released about 15 minutes after liftoff into a low ~280 km parking orbit, stacked flat like dealt cards. Each satellite then runs health checks, unfolds its single solar array and begins a weeks-long climb on its ion thruster to the operational shell around 550 km. Satellites that fail checkout stay low and re-enter within months by design — the low insertion orbit is Starlink's built-in debris safeguard.

Because this batch flew recently, its satellites are still bunched together in the climb — which means the famous "Starlink train" from Starlink Group 17-39 may still be visible: a chain of bright dots crossing the sky in single file around dawn or dusk. Check the pass forecast for your city while the train lasts; within a few weeks the satellites will have spread out into an even ring.

Frequently asked questions

Can I still see the Starlink train from Starlink Group 17-39?

Quite possibly. The train effect is strongest in the first one to three weeks after launch, and this mission flew 10 days ago. Look during the dark hours near dawn or dusk, and use the pass forecast for your city to catch it.

How many satellites did Starlink Group 17-39 carry?

24 Starlink satellites, riding to orbit stacked flat inside the Falcon 9 Block 5 fairing and released in one go about 15 minutes after liftoff.

Where did Starlink Group 17-39 launch from?

Space Launch Complex 4E, Vandenberg SFB, CA, USA. West-coast launches serve Starlink's higher-inclination shells, which cover far northern and southern latitudes.