TY - RPRT TI - Performance interface document for users of Tracking and Data Relay Satellite System (TDRSS) electromechanically steered antenna systems (EMSAS) AU - Hockensmith, R. AU - Devine, E. AU - Digiacomo, M. AU - Hager, F. AU - Moss, R. PY - 1983 UR - https://ntrs.nasa.gov/citations/19830016274 ID - 19830016274 ER -