This contract is issued in support of the National Environmental Satellite, Data, and Information Service (NESDIS), Office of System Architecture and Engineering (SAE). This purchase order's requirement is to acquire commercial, near-real-time Microwave Sounder (MWS) Level 1B/Level 1C (L1B/L1C) radiance observation data from one or more on-orbit Low Earth Orbit (LEO) satellites.