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Family: R-7.
Standard Soyuz universal booster with Ikar upper stage.
SpecificationsLEO Payload: 4,100 kg. to: 450 km Orbit. at: 51.8 degrees. Payload: 2,750 kg. to a: sun synchronous, 800 km, 98.6 deg inclination trajectory. Liftoff Thrust: 411,000 kgf. Total Mass: 305,000 kg. Core Diameter: 3.0 m. Total Length: 43.4 m. Launch Price $: 50.00 million. in 1999 price dollars.
- Stage Number: 0. 4 x Soyuz 11A511U-0 Gross Mass: 44,500 kg. Empty Mass: 3,784 kg. Thrust (vac): 101,400 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-107-11D511
- Stage Number: 1. 1 x Soyuz 11A511U-1 Gross Mass: 105,400 kg. Empty Mass: 6,875 kg. Thrust (vac): 101,675 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-108-11D512
- Stage Number: 2. 1 x Soyuz 11A511U-2 Gross Mass: 25,200 kg. Empty Mass: 2,355 kg. Thrust (vac): 30,400 kgf. Isp: 330 sec. Burn time: 250 sec. Diameter: 2.7 m. Span: 2.7 m. Length: 6.7 m. Propellants: Lox/Kerosene No Engines: 1. RD-0110
- Stage Number: 3. 1 x Ikar Gross Mass: 3,164 kg. Empty Mass: 2,344 kg. Thrust (vac): 300 kgf. Isp: 326 sec. Burn time: 600 sec. Diameter: 2.7 m. Span: 2.7 m. Length: 2.6 m. Propellants: N2O4/UDMH No Engines: 1. 17D61
Soyuz 11A511U / Ikar Chronology
1999 Feb 9 - - 03:54 GMT. LV Configuration: Soyuz 11A511U / Ikar s/n ST01/058. Launch Site: Baikonur . Launch Complex: LC1.
- Globalstar FM23 Spacecraft: Globalstar. Mass: 222 kg.
- Globalstar FM38 Spacecraft: Globalstar. Mass: 222 kg.
- Globalstar FM40 Spacecraft: Globalstar. Mass: 222 kg.
- Globalstar FM36 Spacecraft: Globalstar. Mass: 222 kg.
The first launch of the Soyuz- Ikar launch vehicle, selected by Orbcomm after failure of the Zenit launcher. The Ikar upper stage was derived from the Yantar reconnaissance satellite's propulsion module. The Soyuz second stage separated at 8 minutes 48 seconds into flight after placing the Ikar into a 236 km x 884 km x 52.0 deg transfer orbit. The Ikar stage burned at the second apogee passage, at 06:23 GMT, and released the Globalstar satellite at the top of the dispenser into a 915 km x 947 km x 52.0 deg orbit at 07:27 GMT. The three remaining satellites mounted around the side of the dispenser were released into a 903 km x 946 km x 52.0 deg orbit. This was also the first launch carried out by the Starsem organization, a joint venture including Aerospatiale and TsSKB-Progress (the launch vehicle manufacturer). The dispenser was built by Aerospatiale/Aquitaine (Bordeaux).
1999 Mar 15 - - 03:06 GMT. LV Configuration: Soyuz 11A511U / Ikar s/n ST02/059?. Launch Site: Baikonur . Launch Complex: LC1.
- Globalstar M022 Spacecraft: Globalstar. Mass: 222 kg.
In the second Soyuz/Ikar launch four Globalstar satellites were delivered with the Ikar upper stage into a 235 km x 899 km x 52.0 degree transfer orbit. The Ikar stage then placed itself and its payload into a 897 km x 950 km x 52.0 degree deployment orbit. Satellite M022 was separated first from the top of the dispenser, followed by ejection of the other three satellites from the sides at 06:37 GMT. After dispensing the satellites, the Ikar deorbited itself on March 16.
- Globalstar M037 Spacecraft: Globalstar. Mass: 222 kg.
- Globalstar M041 Spacecraft: Globalstar. Mass: 222 kg.
- Globalstar M046 Spacecraft: Globalstar. Mass: 222 kg.
1999 Apr 15 - - 00:46 GMT. LV Configuration: Soyuz 11A511U / Ikar s/n ST03/060. Launch Site: Baikonur . Launch Complex: LC1.
- Globalstar M019 Spacecraft: Globalstar. Mass: 222 kg.
The Ikar upper stage entered a 234 km x 900 km transfer orbit, then maneuvered to dispense the four spacecraft into 900 km x 950 km x 52.0 deg parking orbits. The satellite's own thrusters would be used to place them into their 1410 km circular operational orbits. The Ikar stage deorbited itself after one day. The Globalstar satellites, built by Alenia and Loral, are L-band comsats which provide satellite phone service.
- Globalstar M042 Spacecraft: Globalstar. Mass: 222 kg.
- Globalstar M045 Spacecraft: Globalstar. Mass: 222 kg.
- Globalstar M044 Spacecraft: Globalstar. Mass: 222 kg.
1999 Sep 22 - - 14:33 GMT. LV Configuration: Soyuz 11A511U / Ikar s/n ST04/061. Launch Site: Baikonur . Launch Complex: LC1.
- Globalstar 58 Spacecraft: Globalstar.
- Globalstar 50 Spacecraft: Globalstar.
- Globalstar 33 Spacecraft: Globalstar.
The third stage put the complex into a 235 km x 906 km x 51.9 degree transfer orbit. The Ikar upper stage maneouvered, placed the four satellites into their final parking orbit, then made a deorbit burn and re-entered on September 24.
- Globalstar 55 Spacecraft: Globalstar.
1999 Oct 18 - - 13:22 GMT. LV Configuration: Soyuz 11A511U / Ikar s/n ST05. Launch Site: Baikonur . Launch Complex: LC1.
1999 Nov 22 - - 16:20 GMT. LV Configuration: Soyuz 11A511U / Ikar s/n ST06. Launch Site: Baikonur . Launch Complex: LC1.
Bibliography:- 455 - Isakowitz, Steven J,, International Reference to Space Launch Systems Third Edition, AIAA, Washington DC, 2000.
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Last update 12 March 2001.
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© Mark Wade, 2001 .