AKA: Astro 2. Status: Study. Thrust: 1,170.00 kN (263,020 lbf). Gross mass: 89,290 kg (196,850 lb). Unfuelled mass: 14,000 kg (30,000 lb). Specific impulse: 425 s. Height: 20.70 m (67.90 ft). Span: 13.40 m (43.90 ft).