Status: Retired 1976. First Launch: 1974-09-04. Last Launch: 1976-05-11. Number: 4 . Thrust: 225.00 kN (50,582 lbf). Gross mass: 1,600 kg (3,500 lb). Height: 12.60 m (41.30 ft). Diameter: 0.42 m (1.37 ft). Apogee: 250 km (150 mi).
The Astrobee 200 consisted of an M5 Nike booster and an Aerojet Alcor upper stage, and could reach an altitude of about 300 km (185 miles). It was exclusively used by the USAF's Air Force Cambridge Research Lab, which fired ten of these rockets between 30 June 1961 and 14 December 1966 with aeronomy and ionosphere experiments.