Zenit rocket

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For other uses, see Zenit (disambiguation).
Zenit 2/3SL
Missing image
Zenit-2_rocket_ready_for_launch.jpg
Zenit-2 rocket (Baikonur, 10 Dec. 2001)

Stages 2 or 3
1st Stage Engines One RD-171 (four-chambered)
Maximum thrust 7.259 kN (sea-level), 7.908 (vacuum)
Burn time 150 s
Fuels RP-1/LOX
Isp (NĚs/kg) 3,200 (vacuum), 2,990 (sea level)
Mass 28,600 kg (empty), 354,300 kg (fueled)
Dimensions length: 32.9 m, diameter: 3.9 m
2nd Stage Engines One RD-120 and one RD-8
Thrust 912 kN and 79,5 kN
Burn time 315 s
Fuels RP-1/LOX
Isp (NĚs/kg) 3,350 (vacuum)
Mass 9,000 kg (empty), 90,600 kg (fueled)
Dimensions length: 11.5 m, diameter: 3.9 m
3rd Stage Engines One 11D58M
Thrust 84.9 kN
Burn time 650 s
Fuels RP-1/LOX
Isp (NĚs/kg) 3,380 (vacuum)
Mass 2,720 kg (empty), 17,300 kg (fueled)
Dimensions length: 5.6 m, diameter: 3.7 m
Two stage version (Zenit-2)
Payload to LEO 13,740 kg
Payload to PEO 5,000 kg
Payload to GEO Not designed for GEO
Three stage version (Zenit-3SL)
Payload to LEO 6,100 kg,

3rd stage structural limitation

Payload to MEO 3,965 kg (10,000 km, 45░)
Payload to GEO 1,840 kg
Payload to GTO 5,250 kg (upgraded to 6,000+ kg)

The Zenit rocket (Ukrainian: Зеніт, Russian: Зени́т; meaning Zenith) is a space launch vehicle manufactured by the Yuzhnoe Design Bureau of Ukraine. Zenits are launched from Russia's Baikonur Cosmodrome in Kazakhstan, and by the Sea Launch organization's floating launch platform in the Pacific Ocean. Since the Zenit is not produced in Russia, it is planned to be replaced in that service by the new and yet unflown Angara rocket, although Russia does still use the Zenit. Sea Launch company continues to market the Zenit.

On 26 April 2005, a Zenit 3SL operated by Sea Launch broke the record for heaviest commercial communications satellite ever launched into orbit. The satellite, DirecTV's SPACEWAY-1 weighed 6080 kg (13,400 lb).

Current models:

Zenit-2 Zenit-3SL
Stages 2 3
Total length 57 m 59.6 m
Total empty mass 37,600 kg 40,320 kg
Total gross mass 444,900 kg 462,200 kg
Payload 13.74 Mg to LEO ~6 Mg to GTO
Launch site Baikonur Cosmodrome Sea Launch ocean platform
Launches 21 (6 failed) as of 2004-06-10 16 (2 failed) as of 2005-04-26
Success ratio 71.4% 87.5%
Price per launch ~$45 million ~$90 million
de:Zenit (Rakete)

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