Vandenberg Space Force Base Guardians and Airmen are scheduled to support the launch of the Space Development Agency’s (SDA) first Tranche 1 mission Wednesday morning from Space Launch Complex 4 East at Vandenberg.

The mission is targeted for liftoff at 7:12 a.m. aboard a SpaceX Falcon 9 rocket. If needed, a backup opportunity is available Thursday at 7:04 a.m.

The launch will place 21 of a planned 154 satellites into orbit, forming part of the Proliferated Warfighter Space Architecture, a mesh network designed to deliver tactical data to forces in the field, track advanced missile threats and support beyond-line-of-sight targeting.

According to base officials, areas nearby to Vandenberg Space Force Base will hear the initial low rumble of take-off.

Following stage separation, the firs

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