Live coverage: Falcon 9 disintegrates after launch

The first launch for Iridium’s next-generation mobile communications fleet has been pushed back four months — from December until April — to resolve a technical problem inside the spacecraft’s Ka-band communications payload.

Liftoff of the Starlink 17-23 mission occurred at 2:10:39 a.m. PST (5:10:39 a.m. EST / 1010:39 UTC). The rocket, carrying 25 Starlink V2 Mini satellites, took southerly trajectory on departure from Vandenberg Space Force Base.

This mission follows a similar model of processing used during the Rapid Response Trailblazer (RRT-1) mission, which saw the launch of the GPS 3 Space Vehicle 07 (SV-07) spacecraft on a Falcon 9 instead of a United Launch Alliance Vulcan rocket as originally planned.