*** Welcome to piglix ***

Zefiro 23

Vega
Sentinel-2B liftoff.jpg
Vega VV09 liftoff with Sentinel-2B
Function Small-lift launch vehicle
Manufacturer Avio, Safran, Yuzhmash
Country of origin European Union, Italy
Size
Height 30 m (98 ft)
Diameter 3 m (9.8 ft)
Mass 137,000 kg (302,000 lb)
Stages 4
Capacity
Payload to Polar orbit
(700km / inclination 90°)
1,430 kg (3,150 lb)
Payload to Elliptic orbit
(1500x200km / inclination 5.4°)
1,963 kg (4,328 lb)
Payload to SSO (400km) 1,450 kg (3,200 lb)
Associated rockets
Comparable
Launch history
Status Active
Launch sites Guiana Space Centre SLV
Total launches 9
Successes 9
First flight 13 February 2012 (2012-02-13)
First stage - P80
Length 11.7 m (38 ft)
Diameter 3 m (9.8 ft)
Empty mass 7,330 kg (16,160 lb)
Gross mass 95,695 kg (210,971 lb)
Thrust 2,261 kN (508,300 lbf)
Specific impulse 280 s (2.7 km/s)
Burn time 110 s
Fuel HTPB (Solid)
Second stage - Zefiro 23
Length 8.39 m (27.5 ft)
Diameter 1.9 m (6.2 ft)
Empty mass 2,850 kg (6,280 lb)
Gross mass 28,850 kg (63,600 lb)
Thrust 871 kN (195,800 lbf)
Specific impulse 287.5 s (2.819 km/s)
Burn time 77 s
Fuel HTPB (Solid)
Third stage - Zefiro 9
Length 4.12 m (13.5 ft)
Diameter 1.9 m (6.2 ft)
Empty mass 1,315 kg (2,899 lb)
Gross mass 11,815 kg (26,048 lb)
Thrust 260 kN (58,450 lbf)
Specific impulse 296 s (2.90 km/s)
Burn time 120 s
Fuel HTPB (Solid)
Upper stage - AVUM
Length 1.7 m (5.6 ft)
Diameter 1.9 m (6.2 ft)
Empty mass 147 kg (324 lb)
Gross mass 697 kg (1,537 lb)
Engines 1 RD-843
Thrust 2.42 kN (544.0 lbf)
Specific impulse 315.5 s (3.094 km/s)
Burn time 667 s
Fuel UDMH/N2O4

Vega (Vettore Europeo di Generazione Avanzata,Advanced Generation European Carrier Rocket) is an expendable launch system in use by Arianespace jointly developed by the Italian Space Agency and the European Space Agency. Development began in 1998 and the first launch took place from the Guiana Space Centre on 13 February 2012. Arianespace has ordered launchers covering the period till at least the end of 2018.

It is designed to launch small payloads — 300 to 2,500 kg satellites for scientific and Earth observation missions to polar and low Earth orbits. The reference Vega mission is a polar orbit bringing a spacecraft of 1,500 kilograms to an altitude of 700 kilometers.

Vega, named after the brightest star in the constellation Lyra, is a single-body launcher (no strap-on boosters) with three solid rocket stages: the P80 first stage, the Zefiro 23 second stage, and the Zefiro 9 third stage. The upper module is a liquid rocket called AVUM. The improved version of the P80 stage, the P120C, will be used as side booster of the Ariane 6. Italy is the leading contributor to the Vega program (65%), followed by France (13%). Other participants include Spain, Belgium, the Netherlands, Switzerland and Sweden.

Arianespace indicates a Vega launcher is able to carry 1,500 kilograms (3,300 lb) to a circular polar orbit at an altitude of 700 kilometres (430 mi).


...
Wikipedia

...