Watch LIVE as SpaceX launches Tranche 1 Transport Layer C from SLC-4E from Vandenberg Space Force Base in California. Launch Date: October 14th at 4:12:09AM MDT (23:12 UTC) Mission: Falcon 9 launch of 21 Tranche 1 Transport Layer C satellites for the United States Space Force Space Development Agency (SDA) for the Proliferated Warfighter Space Architecture (PWSA) Tranche 1 Transport Layer constellation. Location: Space Launch Complex 4E (SLC-4E), Vandenberg Space Force Base, Earth Target Orbit: Polar Orbit ...