USA 312, also known as 2020-101A, is an American satellite launched on December 19, 2020, from Kennedy Space Center's LC39A using a Falcon 9 launch vehicle. The satellite has dimensions of approximately 4 meters in length and 2.5 meters in diameter with a span of 10 meters. It had a launch mass of 2,000 kg and a dry mass of 1,500 kg. The spacecraft's shape is described as "Box+2 panels," though specific equipment details are not provided. Its mission purpose relates to technology, but the exact nature remains unspecified. The satellite was owned by NROC (National Reconnaissance Office) and its payload is listed as "[NRO Unk LEO 3]." Further operational or technical specifications such as power systems, transmitters, or significant events are not detailed in the provided data.