UR-500
Proton / UR-500 familyKhrunichev State Research and Production Space CenterRetired
Proton is an expendable launch system used for both commercial and Russian government space launches. The first Proton rocket was launched in 1965.

Specifications
- Thrust
- 8,847 kN
- Height
- 46.28 m
- Diameter
- 4.15 m
- Launch mass
- 595 t
- Stages
- 2
- LEO capacity
- 8,400 kg
Specifications from Launch Library. Figures the operator has not published are omitted.
Flight record
4flightswith a definitive outcome
75%success rate3 of 4
1success streakcurrent
Counted from padside's own launch record, the same basis as the stats page.