Proton-K/17S40
Proton-K/17S40 is a 4-stage Proton / UR-500 rocket built by Khrunichev State Research and Production Space Center.

Specifications
- Height
- 59 m
- Diameter
- 4.15 m
- Mass
- 708000 kg
- Stages
- 4
- Thrust
- 8847 kN
- LEO payload
- 6000 kg
- First flight
- Jun 6, 1997
Manufacturer & operator
- Family
- Proton / UR-500
- Variant
- 17S40
- Manufacturer
- Khrunichev State Research and Production Space Center
- Operator
- —
- Country
- Russia
Launch sites
- Baikonur Cosmodrome, Republic of Kazakhstan (6 launches)
Launch history
6 launches to date.





