The AMPTE/IRM (Ion Release Module) satellite, designated 1984-088B, was launched on August 16, 1984, from Launch Pad LC17A at the Air Force Eastern Test Range using a Delta 3924 launch vehicle. The satellite is part of the AMPTE mission focusing on magnetosphere research and has dimensions of 1.7 meters in length with a diameter of 2.1 meters and a span of 47 meters, indicating its antenna deployment. It was manufactured by MPE for DFVLR (Deutsche Forschungsanstalt für Luft- und Raumfahrt) and operated for approximately two years after launch. The satellite has a dry mass and launch mass both at 298 kg and utilizes solar cells along with batteries for power generation. Its shape is described as cylindrical with antennas, featuring an RCS (Reaction Control System) value of 0.31.