DESCENT is a CubeSat (1U) satellite launched on November 20, 1998, from TYMSC Pad 0A using an Antares 230+ launch vehicle. The spacecraft measures 0.1 meters in length, diameter, and span with a dry mass of 1 kg and was manufactured by YORK. It operates primarily for technology demonstration purposes, powered by solar cells and batteries. Launched as part of the DESCENT mission, its ownership is attributed to YORK. No specific equipment or major events are listed, and the satellite's stability date is noted as November 5, 2020.