USA 370, also known as Starshield 1-17, is a satellite owned by NROC and manufactured by SPXS. Launched on May 22, 2024, from AFWTR SLC4E using a Falcon 9 launch vehicle, it has dimensions of 0.3 meters in length, 4.1 meters in diameter, and spans 29 meters. The satellite weighs 750 kilograms at launch with a dry mass of 700 kilograms. Its shape is described as box-like with pan features, and it utilizes deployable solar arrays for power. The mission purpose remains unknown but could involve imaging or SIGINT operations.