SpaceX is counting down to a late-night Falcon 9 launch from Vandenberg Space Force Base in California, with a rocket carrying 25 more Starlink satellites set to lift off from Space Launch Complex 4 East at 9:29:49 p.m. PDT. That is 12:29:49 a.m. EDT and 04:29:49 UTC, putting the mission squarely in the middle of the overnight window for East Coast watchers.
The Starlink 17-27 flight is SpaceX's 46th Falcon 9 launch of the year, and it will send the rocket south from the central California coast toward an orbit of 258 by 246 km with a 97-degree inclination. Spaceflight Now plans live coverage starting about 30 minutes before liftoff, giving viewers a short lead time before the countdown reaches zero.
What makes this launch stand out is not just the satellite count but the hardware behind it. The mission will use booster B1082, which entered the SpaceX fleet in January 2024 and is now making its 21st flight. Before this mission, the booster had already launched 17 previous Starlink delivery missions and also flew USSF-62, OneWeb Launch 20 and NROL-145.
After liftoff, the first stage is targeting a landing a little more than eight minutes later on the drone ship Of Course I Still Love You in the Pacific Ocean. If that recovery works as planned, it will set up the booster for another reuse cycle in a program that has become routine for SpaceX even as the pace stays relentless.
The 25 Starlink V2 Mini satellites are expected to deploy about an hour into flight, extending SpaceX's ongoing satellite internet buildout under the Starlink 17-27 mission name. Tonight's launch is another data point in a year that has already made the Falcon 9 the company workhorse, and the schedule now hinges on whether the countdown holds through the final seconds at Vandenberg.
