Soyuz family
Soyuz 2.1b
Soyuz-2 is the 21st-century version of the Russian Soyuz rocket. In its basic form, it is a three-stage carrier rocket for placing payloads into low Earth orbit. The 2.1b version adds an upgraded engine (RD-0124) with improved performance to the second stage.
Flights flown251 scheduled
Success rate100%25/25
Payload to LEO8,200kg
Cost per kg to LEO$9,756$80M per launch
Maiden flight2008-07-26
Peak year20214 flights
Soyuz 2.1b is built by Progress Rocket Space Center of Russia. Company background, funding, contracts and news for this operator are tracked on Space Index. It first flew on 26 July 2008.
Flight record
100% success rate25 of 25 flown
2008peak 2021 · 4 flights2026
First flight2008-07-26
Latest flight2026-09-16
Failures0
Consecutive successes25
Fastest turnaround1d 15h
Payload
| Low Earth orbit | 8,200kg |
|---|---|
| Sun-synchronous orbit | 4,900kg |
| Geostationary transfer orbit | 3,250kg |
| Launch cost | $80M |
| Cost per kg to LEO | $9,756 |
Vehicle
| Stages | 3 |
|---|---|
| Length | 46.3m |
| Diameter | 2.95m |
| Launch mass | 312t |
| Maiden flight | 2008-07-26 |
| Reusable | No |
Pads used
Orbits delivered
Low Earth Orbit13Sun-Synchronous Orbit6Polar Orbit4
Compare
Launch history
| Date | Mission | Pad | Orbit | Outcome |
|---|---|---|---|---|
| 2026-09-16 | Soyuz 2.1b | Progress MS-35 (96P) | 31/6 | Low Earth Orbit | Success |
| 2026-07-19 | Soyuz 2.1b | 16 x Rassvet-3 | 43/4 (43R) | Polar Orbit | Success |
| 2026-03-23 | Soyuz 2.1b | 16 x Rassvet-3 | 43/4 (43R) | Polar Orbit | Success |
| 2025-08-20 | Soyuz 2.1b | Bion-M No. 2 | 31/6 | Low Earth Orbit | Success |
| 2024-12-25 | Soyuz 2.1b | Resurs-P No.5 | 31/6 | Sun-Synchronous Orbit | Success |
| 2024-12-04 | Soyuz 2.1b | Kosmos 2580 (Lotos-S1 #9) | 43/4 (43R) | Low Earth Orbit | Success |
| 2024-03-31 | Soyuz 2.1b | Resurs-P No.4 | 31/6 | Sun-Synchronous Orbit | Success |
| 2023-12-21 | Soyuz 2.1b | Kosmos 2573 (Bars-M No. 5?) | 43/4 (43R) | Sun-Synchronous Orbit | Success |
| 2023-11-25 | Soyuz 2.1b | Kosmos 2572 (Razdan No. 1?) | 43/4 (43R) | Polar Orbit | Success |
| 2023-10-27 | Soyuz 2.1b | Kosmos 2570 (Lotos-S1 #8) | 43/3 (43L) | Low Earth Orbit | Success |
| 2022-11-30 | Soyuz 2.1b | Kosmos 2565 (Lotos-S1 #7) | 43/4 (43R) | Low Earth Orbit | Success |
| 2022-04-07 | Soyuz 2.1b | Kosmos 2554 (Lotos-S1 #6) | 43/3 (43L) | Low Earth Orbit | Success |
| 2021-11-24 | Soyuz 2.1b | Uzlovoy Module (UM) "Prichal" | 31/6 | Low Earth Orbit | Success |
| 2021-10-14 | Soyuz 2.1b/Fregat-M | OneWeb 11 | Cosmodrome Site 1S | Polar Orbit | Success |
| 2021-06-25 | Soyuz 2.1b | Pion-NKS No. 1 (Kosmos 2550) | 43/4 (43R) | Low Earth Orbit | Success |
| 2021-02-02 | Soyuz 2.1b | Lotos-S1 | 43/4 (43R) | Low Earth Orbit | Success |
| 2018-10-25 | Soyuz 2.1B | Lotos-S1 (Kosmos 2528) | 43/4 (43R) | Low Earth Orbit | Success |
| 2017-12-02 | Soyuz-2.1b | Lotos-S1 (Kosmos-2524) | 43/4 (43R) | Low Earth Orbit | Success |
| 2016-03-13 | Soyuz 2.1b | Resurs-P No.3 | 31/6 | Low Earth Orbit | Success |
| 2015-06-23 | Soyuz | Persona (Kosmos 2506) | 43/4 (43R) | Sun-Synchronous Orbit | Success |
| 2014-12-26 | Soyuz 2.1b | Resurs-P No.2 | 31/6 | Success | |
| 2014-12-25 | Soyuz 2-1B | Lotos-S (Kosmos 2502) | 43/4 (43R) | Success | |
| 2013-06-25 | Soyuz 2.1b | Resurs-P No.1 | 31/6 | Sun-Synchronous Orbit | Success |
| 2013-06-07 | Soyuz 2.1b | Persona (Kosmos-2486) | 43/4 (43R) | Success | |
| 2008-07-26 | Soyuz 2.1b | Persona 1 | 43/4 (43R) | Sun-Synchronous Orbit | Success |
| 2026-11-24 | Soyuz 2.1b | Progress MS-36 (97P) | 31/6 | Low Earth Orbit | Scheduled |
Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.
Further reading: Wikipedia