Defense & policy · first seen 15 Sep, updated 15 Sep
Live coverage: SpaceX to launch national security payload for the U.S. Space Force on Falcon 9 rocket from Vandenberg
The rocket will carry an unspecified number of satellites to orbit. Liftoff from pad 4E at Vandenberg Space Force Base is scheduled for 7:18 p.m. PDT (10:18 p.m. EDT / 0218 UTC).
Summary from Spaceflight Now.