SpaceX - Falcon 9 - Starlink 11-21 - SLC-4E - Vandenberg SFB - October 27, 2025

Launch Date: October 27, 2025
Launch Time: 5:43 p.m. PDT (October 28, 0043, 01:43 CET)
Launch Window: Open until 6:12 p.m. PDT
Launch Site: SLC-4E - Vandenberg Space Force Base, California
Targeted Orbit: Low Earth Orbit (LEO)
Launch Inclination: Southeast
Launch Status: Nominal orbit insertion, Falcon 9 booster landed successful on the droneship

Mission: Starlink Group 11-21
Launch Provider: SpaceX
Launcher System: Falcon 9 (Booster B1082 - Turnaround time 31 days)
Flight for the Booster: 17
Previous Flights of the Booster: 16 - USSF-62, OneWeb Launch 20, NROL-145, and 13 Starlink missions
Droneship: Of Course I Still Love You (OCISLY)

Price: $69,75 million (without payload)
Diameter: 3,7 m
Height: 70 meters
Payload to Orbit: 22,800 LEO / 8,300 GTO
Lift-Off Thrust: 7,607 kilonewtons
Fairing: Diameter 5,2 meters / Height 13 meters
Stages: 2

SpaceX targets October 27, 2025, for a Falcon 9 launch of 28 Starlink satellites to low-Earth orbit from Space Launch Complex 4E (SLC-4E) at Vandenberg Space Force Base in California. The launch window opens at 2:12 p.m. PDT and closes at 6:12 p.m. PDT.

This is the 17th flight for the first stage booster supporting this mission, which previously launched USSF-62, OneWeb Launch 20, NROL-145, and 13 Starlink missions. Following stage separation, the first stage will land on the Of Course I Still Love You droneship, which will be stationed in the Pacific Ocean.

Residents of Santa Barbara, San Luis Obispo, and Ventura counties may hear one or more sonic booms during the launch, but what they experience will depend on weather and other conditions.

You will find more information about the trajectory and data on the day of the launch here: https://flightclub.io/live

Countdown
Hr/Min/Sec Event
00:38:00 SpaceX Launch Director verifies go for propellant load
00:35:00 RP-1 (rocket grade kerosene) loading begins
00:35:00 1st stage LOX (liquid oxygen) loading begins
00:16:00 2nd stage LOX loading begins
00:07:00 Falcon 9 begins engine chill prior to launch
00:01:00 Command flight computer to begin final prelaunch checks
00:01:00 Propellant tank pressurization to flight pressure begins
00:00:45 SpaceX Launch Director verifies go for launch
00:00:03 Engine controller commands engine ignition sequence to start
00:00:00 Falcon 9 liftoff