Deep Space Advanced Radar Capability
Deep Space Advanced Radar Capability, or DARC, is a US Space Force project in partnership with Australia and the United Kingdom using Northrop Grumman as the main contractor. DARC purpose is to improve the detection and visibility of satellites, objects, space debris, and track activity in geosynchronous orbit.
Source: Wikipedia — Deep Space Advanced Radar Capability (CC BY-SA 4.0)