SDA Tranche 1 Tracking Layer E

One of five Space Development Agency Tranche 1 Tracking Layer missions for the Proliferated Warfighter Space Architecture, lofting infrared missile-warning satellites to polar orbit from Vandenberg SLC-3E. Distinct from Vulcan's T1 Tracking Layer B and from the Falcon 9 T1 Tracking A, C and D planes.

Status

Date TBD

Target orbit

PO

Polar orbit

Date and time

2026

Rocket

Vulcan

Operator

United Launch Alliance

Launch site

Space Launch Complex 3E, Vandenberg SFB, CA, USA

Payload

Government/Top Secret