American earth magnetosphere satellite. Plasma Diagnostics Package; released by STS 51F 8/1/85, retrieved 8/2/85. Technology satellite operated by NASA, USA. Launched 1985.
AKA: Plasma Diagnostics Package. Status: Operational 1985. First Launch: 1985-07-29. Last Launch: 1985-07-29. Number: 1 . Gross mass: 285 kg (628 lb).