- Family: Proton / UR-500
- Length: 58.2 m
- Diameter: 7.4 m
- Launch Mass: 712 T
- Low Earth Orbit Capacity: 2100 kg
The Proton-M Blok DM-03 was manufactured by Khrunichev State Research and Production Space Center with the first launch on 2010-12-05. Proton-M Blok DM-03 has 5 successful launches and 2 failed launches with a total of 7 launches. Proton-M Blok DM-03 is a four stage Russian heavy lift launch vehicle derived from the Soviet Proton launch vehicle.
It is a Proton-M with an added DM-03 Fourth stage.
Manufacturer

Khrunichev State Research and Production Space Center is a Moscow-based producer of spacecraft and space-launch systems, including the Proton and Rokot rockets and is currently developing the Angara rocket family. The Proton launch vehicle launches from Baikonur and Rokot launches from Baikonur and Plesetsk. Angara will launch from Plesetsk and Vostochny. Khrunichev State Research and Production Space Center is a Government RUS entity that was founded in 1916 and is administered by Director: Andrey Vladimirovich Kalinovskiy.
Khrunichev State Research and Production Space Center has 178 successful launches and 15 failed launches with a total of 193 launches.