USA 173 is an American military satellite (operated by the National Reconnaissance Office)
Vehicle
Atlas IIAS
Atlas · IIAS
Height
47.54 m
Diameter
3.04 m
LEO capacity
6,580 kg
Successful launches
30
Launch complex
Space Launch Complex 3E
Vandenberg SFB, CA, USA
Vandenberg Space Force Base is a United States Space Force Base in Santa Barbara County, California. Established in 1941, Vandenberg Space Force Base is a space launch base, launching spacecraft from the Western Range, and also performs missile testing. The United States Space Force's Space Launch Delta 30 serves as the host delta for the base, equivalent to an Air Force air base wing. In addition to its military space launch mission, Vandenberg Space Force Base also hosts space launches for civil and commercial space entities, such as NASA and SpaceX.