Engine Model: Star 13. Manufacturer Name: TE-M-458. Designer: Thiokol. Gross Mass: 36 kg (79 lb). Empty Mass: 5.00 kg (11.00 lb). Propellants: Solid. Thrust(vac): 3.800 kN (854 lbf). Isp: 273 sec. Burn time: 22 sec. Chambers: 1. Country: USA. Status: Out of Production. Flown: 9.00. A braking motor used by NASA for the Anchored Interplanetary Monitoring Platform program. A charge of AP/Al urethane contained in a spherical case of 6Al-4V titanium, with a graphite/vitreous silica phenolic nozzle. Sweden's Freja scientific satellite used it in October of 1992, to raise its apogee. Total impulse 8,524 kgf-sec. Motor propellant mass fraction 0.869.