AKA: Equipment Module. Status: Operational 1964. Gross mass: 1,277 kg (2,815 lb). Unfuelled mass: 955 kg (2,105 lb). Specific impulse: 273 s. Height: 1.40 m (4.50 ft). Diameter: 3.05 m (10.00 ft).
Structure: 250 kg (550 lb). Reaction Control System: 60 kg (132 lb). Telemetry Equipment: 40 kg (88 lb). Electrical Equipment: 294 kg (648 lb). Miscellaneous Contingency: 75 kg (165 lb). Environmental Control System: 117 kg (257 lb). RCS Fine No x Thrust: 8 x 98 N. RCS specific impulse: 288 sec. RCS total impulse: 1,078 kgf-sec. Spacecraft delta v: 222 m/s (728 ft/sec). Electric System: 151.00 kWh. Electric System: 2.16 average kW.