Live coverage: SpaceX to launch 21 communications satellites for the Space Development Agency

The Tranche 1 Transporter Layer E (T1TL-E) mission is the third batch of operational satellites launched to support the SDA’s Proliferated Warfighter Space Architecture satellite constellation. Liftoff from pad 4E at Vandenberg Space Force Base is scheduled for 1:32 p.m. PDT (4:32 p.m. EDT / 2032 UTC).