GO - SpaceX - Falcon 9 - Transporter 17 - SLC-4E - Vandenberg SFB, CA - Space Affairs Live

Launch Date: July 7, 2025 Launch Time: 12:10 a.m. PDT, 0710 UTC, 09:10 CEST Launch Window: Open until 1:45 a.m. PDT Launch Site: SLC-4E - Vandenberg Space Force Base, California, USA Targeted Orbit: Sun-Synchronous Orbit (SSO) Launch Inclination: South Launch Status: Scheduled and announced Mission: Transporter 17 Launch Provider: SpaceX Launcher System: Falcon 9 (Booster B-1097 - Turnaround 30 days) Flight for the Booster: 11 Previous Flights of the Booster: 10 - Sentinel-6B, Twilight, NROL-172, and seven Starlink missions Booster Landing: Droneship Of Course I Still Love You (OCISLY) Price: $69,75 million (without payload) Diameter: 3,7 m Height: 70 m 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 is targeting Tuesday, July 7 for Falcon 9’s launch of the Transporter-17 mission to low-Earth orbit from Space Launch Complex 4E (SLC-4E) at Vandenberg Space Force Base in California. The 95-minute launch window opens at 12:10 a.m. PDT, 0710 UTC, 09:10 CEST. If needed, there is a backup opportunity on Wednesday, July 8 at the same time. This will be the 11th flight for the first stage booster supporting this mission, which previously launched Sentinel-6B, Twilight, NROL-172, and seven 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. Transporter-17 is a dedicated smallsat rideshare mission. There are 81 payloads on this flight, including cubesats, microsats, hosted payloads, and orbital transfer vehicles carrying eight of those payloads to be deployed at a later time. To date, SpaceX has launched more than 1,800 payloads to orbit across our entire Rideshare program. There is the possibility that residents of Santa Barbara, San Luis Obispo, and Ventura counties may hear one or more sonic booms during the launch, but what residents experience will depend on weather and other conditions. 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 Launch, Landing, and Deployment All Times Approximate Hr/Min/Sec Event 00:01:09 Max Q (moment of peak mechanical stress on the rocket) 00:02:26 1st stage main engine cutoff (MECO) 00:02:30 1st and 2nd stages separate 00:02:38 2nd stage engine starts (SES-1) 00:03:13 Fairing separation 00:06:05 1st stage entry burn begins 00:06:29 1st stage entry burn ends 00:08:02 1st stage landing burn begins 00:08:26 1st stage landing 00:51:03 2nd stage engine starts (SES-2) 00:51:07 2nd stage engine cutoff (SECO-2) 00:50:33 Payload deployment sequence starts We will show the complete mission including payload deployment. The first payload deployment is scheduled for 00:50:33 after lift-off. The last payload will be deployed 02:22:42 after lift-off. A complete timeline and list of payload you will find here: https://www.spacex.com/launches/transporter17