Uprated Soyuz booster designed for commercial customers. Upgraded engines, modern avionics, reduced non-Russian content. Uses Fregat upper stage.

LEO Payload: 5,500 kg. to: 450 km Orbit. at: 51.8 degrees. Payload: 4,500 kg. to a: Sun synchronous, 800 km, 98.5 deg orbital trajectory. Liftoff Thrust: 422,640 kgf. Total Mass: 305,000 kg. Core Diameter: 3.0 m. Total Length: 46.1 m. Launch Price $: 35.00 million. in 1999 price dollars.

• Stage Number: 0. 4 x Soyuz ST-0 Gross Mass: 44,400 kg. Empty Mass: 3,810 kg. Thrust (vac): 104,123 kgf. Isp: 310 sec. Burn time: 120 sec. Isp(sl): 264 sec. Diameter: 2.7 m. Span: 2.7 m. Length: 19.6 m. Propellants: Lox/Kerosene No Engines: 1. RD-117

• Stage Number: 1. 1 x Soyuz ST-1 Gross Mass: 105,400 kg. Empty Mass: 6,875 kg. Thrust (vac): 101,931 kgf. Isp: 311 sec. Burn time: 286 sec. Isp(sl): 245 sec. Diameter: 3.0 m. Span: 3.0 m. Length: 27.8 m. Propellants: Lox/Kerosene No Engines: 1. RD-118

• Stage Number: 2. 1 x Soyuz ST-2 Gross Mass: 25,200 kg. Empty Mass: 2,355 kg. Thrust (vac): 30,000 kgf. Isp: 359 sec. Burn time: 300 sec. Diameter: 2.7 m. Span: 2.7 m. Length: 6.7 m. Propellants: Lox/Kerosene No Engines: 1. RD-0124

• Stage Number: 3. 1 x Fregat Gross Mass: 6,535 kg. Empty Mass: 1,100 kg. Thrust (vac): 2,000 kgf. Isp: 327 sec. Burn time: 877 sec. Diameter: 3.4 m. Span: 3.4 m. Length: 1.5 m. Propellants: N2O4/UDMH No Engines: 1. S5.92

• IRDT Payload: Mission 2000.

• Dummy satellite Payload: Dummy satellite.

• Dumsat Payload: Dumsat.

  Mass model of a pair of Cluster II scientific satellites built by Aerospatiale Matra. Second test launch of the Soyuz-Fregat launch vehicle.

• Salsa Spacecraft: Cluster 2.

  The first two European Space Agency Cluster II satellites, Samba (FM7) and Salsa (FM6) were launched into an initial 200 km / 64.8 deg circular orbit. The Fregat upper stage then burned once before ejecting the satellites into a 250 x 18072 km x 64.7 deg transfer orbit. Both satellites then used their Astrium (former MBB) S400 liquid engines in a series of four additional burns before reaching their final 16869 x 121098 km x 90.6 deg orbits. Each magnetosphere research satellite deployed four 50-meter wire antennas.

• Samba Spacecraft: Cluster 2.

• Rumba Spacecraft: Cluster 2.

• Tango Spacecraft: Cluster 2.

  Rumba and Tango were the second pair of Cluster II magnetospheric research satellites of the European Space Agency. A series of five burns of the Fregat stage took them from an initial 190 km / 64.8 degree parking orbit to their final 17,200 x 120,600 km orbits inclined 90 degrees to the equator. They then separated from the Fregat and took up operations.

• 455 - Isakowitz, Steven J,, International Reference to Space Launch Systems Third Edition, AIAA, Washington DC, 2000.

• 455 - Isakowitz, Steven J,, International Reference to Space Launch Systems Third Edition, AIAA, Washington DC, 2000.