Rokot

---

title: "Rokot" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["space-launch-vehicles-of-russia", "universal-rocket-(rocket-family)", "space-launch-vehicles-of-the-soviet-union", "vehicles-introduced-in-1990"] description: "Russian space launch vehicle" topic_path: "geography/russia" source: "https://en.wikipedia.org/wiki/Rokot" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Russian space launch vehicle ::

::data[format=table title="Infobox rocket"]

Field	Value
name	Rockot (Rokot)
image	Rokot Rocket.jpg
upright	1.0
caption	Rokot launch vehicle
function	Orbital launch vehicle
manufacturer	Khrunichev State Research and Production Space Center
country-origin	Soviet Union
cpl
height	29 m
diameter	2.5 m
mass	107000 kg
stages	3
{{Infobox Rocket/Payload	mass
{{Infobox Rocket/Payload	mass
status	Retired
sites	Baikonur, 175/1
Plesetsk, 133/3
first	20 November 1990
26 December 1994 (orbital)
last	26 December 2019
launches	34
success	31
partial	1
fail	2
stagedata	{{Infobox Rocket/Stage
type	stage
stageno	First
height	17.2 m
diameter	2.5 m
engines	3 RD-0233 (15D95)
1 RD-0234 (15D96)
thrust	2080 kN
SI	310 isp
burntime	120 seconds
fuel	N2O4 / UDMH
type	stage
stageno	Second
height	2.8 m
diameter	2.5 m
engines	1 RD-0235 (15D113)
1 RD-0236 (15D114)
thrust	255.76 kN
SI	310 isp
burntime	180 seconds
fuel	N2O4 / UDMH
type	stage
stageno	Third
name	Briz-KM
engines	1 S5.98M
thrust	19.6 kN
SI	326 isp
burntime	3,000 seconds
fuel	N2O4 / UDMH
::

| name = Rockot (Rokot) | image = Rokot Rocket.jpg | upright = 1.0 | caption = Rokot launch vehicle

| function = Orbital launch vehicle | manufacturer = Khrunichev State Research and Production Space Center | country-origin = Soviet Union

| cpl = | height = 29 m | diameter = 2.5 m | mass = 107000 kg | stages = 3 | capacities =

| status = Retired | sites = Baikonur, 175/1 Plesetsk, 133/3 | first = 20 November 1990 26 December 1994 (orbital) | last = 26 December 2019 | launches = 34 | success = 31 | partial = 1 | fail = 2

| stagedata = {{Infobox Rocket/Stage | type = stage | stageno = First | height = 17.2 m | diameter = 2.5 m | engines = 3 RD-0233 (15D95) 1 RD-0234 (15D96) | thrust = 2080 kN | SI = 310 isp | burntime = 120 seconds | fuel = N2O4 / UDMH | type = stage | stageno = Second | height = 2.8 m | diameter = 2.5 m | engines = 1 RD-0235 (15D113) 1 RD-0236 (15D114) | thrust = 255.76 kN | SI = 310 isp | burntime = 180 seconds | fuel = N2O4 / UDMH | type = stage | stageno = Third | name = Briz-KM | engines = 1 S5.98M | thrust = 19.6 kN | SI = 326 isp | burntime = 3,000 seconds | fuel = N2O4 / UDMH

Rokot ( meaning Rumble or Boom), also transliterated Rockot, was a Soviet Union (later Russian) space launch vehicle that was capable of launching a payload of 1,950 kg into a 200 km Earth orbit with 63° inclination. It was based on the UR-100N (SS-19 Stiletto) intercontinental ballistic missile (ICBM), supplied and operated by Khrunichev State Research and Production Space Center. The first launches started in the 1990s from Baikonur Cosmodrome out of a silo. Later commercial launches commenced from Plesetsk Cosmodrome using a launch ramp specially rebuilt from one for the Kosmos-3M launch vehicle. The cost of the launcher itself was about US$15 million in 1999; The contract with European Space Agency (ESA) for launching Swarm in September 2013 was worth €27.1 million (US$36 million).

Specifications

Rokot's total mass was 107 tonnes, its length 29 metres and its maximum diameter 2.5 metres. The liquid-fueled launch vehicle comprised three stages. The lower two were based on the Soviet UR-100N ICBM; the first stage used an RD-0233 / RD-0234 engine complex, while the second stage used an RD-0235. The third stage was a Briz-KM ( meaning Breeze-KM), which has a mass of about 6 tonnes when fuelled, and is capable of flying for 7 hours and reigniting its engine six times during flight, allowing different satellites to be placed into different orbits. All stages used unsymmetrical dimethylhydrazine (UDMH) as fuel and dinitrogen tetroxide (N2O4) as oxidiser. The Strela is a similar rocket, also based on the SS-19.

History

::figure[src="https://upload.wikimedia.org/wikipedia/commons/c/ce/Подготовка_ракеты_Рокот_к_старту.png" caption="Preparing the Rokot launch vehicle for launch. Plesetsk cosmodrome"] ::

The first suborbital test launch succeeded on 20 November 1990 from Baikonur Cosmodrome. On 26 December 1994, Rokot brought its first satellite into Earth orbit. In 1995, Khrunichev State Research and Production Space Center formed a company with German DaimlerBenz Aerospace to market Rokot launches for commercial use. Later, the company was renamed to Eurockot Launch Services. Eurockot bought 45 Rokots from the Russian strategic missile forces to build its inventory. In 2000, Eurokot was partly bought by the German company Astrium GmbH, a shareholder of Arianespace. Astrium then held 51% of Eurockot's shares, while Khrunichev held 49%.

Although there are several silos in Baikonur capable of launching Rokots, it was decided to build an open, non-siloed launch pad at Plesetsk Cosmodrome instead. This is because of concerns that the amount of noise generated during a silo-based launch would damage satellites. In the new pad, Rokot was wheeled up to the structure in a vertical position, and then embraced by its launch tower. The payload was lifted by a crane and placed on top of the bottom two stages. The procedure was in contrast to other Russian launchers, which had traditionally been assembled horizontally and then transferred to the launch site via railways. The first launch from Plesetsk took place on 16 May 2000.

After six entirely successful launches, a launch failure occurred on 8 October 2005, leading to the loss of the European Space Agency's CryoSat spacecraft. The launch vehicle's second stage main engine did not shut down properly, leading to a catastrophic failure and the automatic termination of the launch mission by the onboard computer. As a result, the payload was lost. Following the failed CryoSat launch, all Rokot launches were suspended until the cause of the failure was identified. The root cause was unambiguously identified; it was a failure in programming of the Briz-KM (which was contracted to the company JSC "Khartron"). The failure of this high-profile mission led to major reforms in Khrunichev: the director of the company Alexander Medvedev was dismissed, new launch procedures were introduced, the lines of management were straightened out to catch errors and the new Khrunichev chief, Viktor Nesterov, was required to report directly to the head of the Russian Space Agency, Anatoli Perminov. Corrective measures for Rokot's return-to-flight were implemented for the South Korean KOMPSAT-2 Earth observation satellite launch which took place successfully on 28 July 2006. The Korean side reportedly praised the level of service they received, encouraging the Rokot team to rebuild its order book.

Another launch failure occurred in February 2011, when a Briz-KM malfunction resulted in the Geo-IK-2 No.11 (Kosmos-2470) satellite being placed into a lower orbit than planned.

The Rokot version with a Ukrainian control system stopped flying after 2019, due to Ukraine's ban on technology exports to Russia. Rokot had its final flight on 26 December 2019. A fully Russian-made Rokot light carrier rocket, named Rokot-M, was expected to begin operations in 2024. The Rokot-M launch vehicle is intended for the Ministry of Defense of Russia.

Launch history

Rokot

::data[format=table] | Flight No. | Date / time (UTC) | Rocket, Configuration | Launch site | Payload | Payload mass | Orbit | Customer | Launch outcome | 1 | 2 | 3 | N/A | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| | 20 November 1990 04:00 | Rokot/Briz-K | Baikonur, Site 131/29 | Experimental Payload | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suborbital test flight | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 20 December 1991 21:31 | Rokot/Briz-K | Baikonur, Site 175/58 | Experimental Payload | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suborbital test flight | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 26 December 1994 03:01 | Rokot/Briz-K | Baikonur, Site 175/58 | Radio-ROSTO | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | First orbital mission. Amateur radio satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 22 December 1999 | Rokot/Briz-K | Plesetsk, Site 133/3 | RSVN-40 | | | |
(failure pre-flight) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No launch, launch vehicle irreparably damaged during preparation. Experimental payload. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 16 May 2000 08:27 | Rokot/Briz-KM | Plesetsk, Site 133/3 | SimSat-1 and 2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Iridium-mock-ups | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 17 March 2002 09:21 | Rokot/Briz-KM | Plesetsk, Site 133/3 | GRACE-1 and 2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NASA research satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 20 June 2002 09:33 | Rokot/Briz-KM | Plesetsk, Site 133/3 | Iridium-97 and 98 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communication satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 30 June 2003 14:15 | Rokot/Briz-KM | Plesetsk, Site 133/3 | MIMOSA DTUsat MOST Cute-I QuakeSat AAU CubeSat CanX-1 CubeSat Xi-IV Monitor-E mockup | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NLS satellites and Monitor-E-Mockup | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 30 October 2003 13:43 | Rokot/Briz-KM | Plesetsk Site 133/3 | SERVIS-1 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Japanese test satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 26 August 2005 18:34 | Rokot/Briz-KM | Plesetsk Site 133/3 | Monitor-E1 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Earth observation satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 8 October 2005 15:02 | Rokot/Briz-KM | Plesetsk Site 133/3 | CryoSat | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Earth observation satellite. Launch terminated after 2nd stage main engine was not shut down correctly, resulting in an explosion, causing the vehicle to exceed its flight envelope limit and thereby causing the automatic termination of the launch and the re-entry of the combined Rokot 2nd stage/3rd stage/CryoSat spacecraft stack | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 28 July 2006 07:05 | Rokot/Briz-KM | Plesetsk Site 133/3 | KOMPSAT-2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Earth observation satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 23 May 2008 15:20 | Rokot/Briz-KM | Plesetsk Site 133/3 | Kosmos 2437 Kosmos 2438 Kosmos 2439 (3X Strela-3) Yubileiny | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications and amateur radio satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 17 March 2009 14:21 | Rokot/Briz-KM | Plesetsk Site 133/3 | GOCE | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ESA Earth observation satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 6 July 2009 01:26 | Rokot/Briz-KM | Plesetsk Site 133/3 | Kosmos 2451 Kosmos 2452 Kosmos 2453 (3X Strela-3) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2 November 2009 01:50 | Rokot/Briz-KM | Plesetsk Site 133/3 | SMOS PROBA-2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SMOS: ESA Earth-observation satellite; PROBA-2: Sun-observation satellite testing a new spacecraft platform | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2 June 2010 01:59 | Rokot/Briz-KM | Plesetsk Site 133/3 | SERVIS-2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Japanese test satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 8 September 2010 03:30 | Rokot/Briz-KM | Plesetsk Site 133/3 | Gonets-M-2 Kosmos 2467 Kosmos 2468 (2X Strela-3) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1 February 2011 14:00 | Rokot/Briz-KM | Plesetsk Site 133/3 | Geo-IK-2 No.11 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Geodesy satellite. Upper stage malfunction, reached lower orbit than planned. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 28 July 2012 01:35 | Rokot/Briz-KM | Plesetsk Site 133/3 | Gonets-M-3 Gonets-M-4 Kosmos 2481 (Strela-3) MiR | | | | url=http://russianforces.org/blog/2012/07/successful_launch_of_strela-3.shtml|title=Successful launch of Strela-3 and Gonets-M communication satellites|journal=Russian Strategic Nuclear Forces|first=Podvig|last=Pavel|date=2012-07-28|access-date=2012-08-09}} | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications and amateur radio satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 15 January 2013 16:25 | Rokot/Briz-KM | Plesetsk Site 133/3 | Kosmos 2482 Kosmos 2483 Kosmos 2484 (3X Strela-3M) | | | | {{cite news|title=Russia's Rokot Launch Vehicle Also Readying for Return to Flight | date=August 6, 2013 | url=https://spacepolicyonline.com/news/russias-rokot-launch-vehicle-also-readying-for-return-to-flight/ | access-date=March 15, 2023}} | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites. Briz-KM failed around the time of spacecraft separation, resulting in the loss of one satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 11 September 2013 23:23 | Rokot/Briz-KM | Plesetsk Site 133/3 | Gonets-M-5 Gonets-M-6 Gonets-M-7 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 22 November 2013 12:02 | Rokot/Briz-KM | Plesetsk Site 133/3 | Swarm A/B/C | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Magnetosphere research satellites; Briz-km failed deorbit burn | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 25 December 2013 00:31 | Rokot/Briz-KM | Plesetsk Site 133/3 | Kosmos 2488 Kosmos 2489 Kosmos 2490 (3X Strela-3M) | | | | last1=Bergin |first1=Chris |title=Russian Rokot lofts three Rodnik satellites |date=25 December 2013 |url=https://www.nasaspaceflight.com/2013/12/russian-rokot-three-rodnik-satellites/ |publisher=NASASpaceflight.com |access-date=22 March 2020}} | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 23 May 2014 05:27 | Rokot/Briz-KM | Plesetsk Site 133/3 | Kosmos 2496 Kosmos 2497 Kosmos 2498 (3X Strela-3M) Kosmos 2499 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3 July 2014 12:43 | Rokot/Briz-KM | Plesetsk Site 133/3 | Gonets-M-8 Gonets-M-9 Gonets-M-10 | | | | url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|work=Jonathan's Space Page|first=Jonathan|last=McDowell|access-date=18 November 2014}} | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 31 March 2015 13:47 | Rokot/Briz-KM | Plesetsk Site 133/3 | Gonets-M-11 Gonets-M-12 Gonets-M-13 Kosmos 2504 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 23 September 2015 22:00 | Rokot/Briz-KM | Plesetsk Site 133/3 | Kosmos 2507 Kosmos 2508 Kosmos 2509 (3X Strela-3M) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 16 February 2016 17:57 | Rokot/Briz-KM | Plesetsk Site 133/3 | Sentinel-3A | | | | url=http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/Sentinel-3/Third_Sentinel_satellite_launched_for_Copernicus|title=Third Sentinel satellite launched for Copernicus|publisher=ESA|date=16 February 2016|access-date=16 February 2016}} | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ESA earth observation satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 4 June 2016 14:00 | Rokot/Briz-KM | Plesetsk Site 133/3 | Kosmos 2517 (Geo-IK-2 No.12) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Geodesy satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 13 October 2017 09:27 | Rokot/Briz-KM | Plesetsk Site 133/3 | Sentinel-5 Precursor | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Earth observation satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 25 April 2018 17:57 | Rokot/Briz-KM | Plesetsk Site 133/3 | Sentinel-3B | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Earth observation satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 30 November 2018 02:27 | Rokot/Briz-KM | Plesetsk Site 133/3 | Kosmos 2530 Kosmos 2531 Kosmos 2532 (3X Strela-3M) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Communications satellites. After launch, NORAD tracked another object (besides the Briz-KM upper stage) which could possibly be a fourth satellite. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 30 August 2019 14:00 | Rokot/Briz-KM | Plesetsk Site 133/3 | Kosmos 2540 (Geo-IK-2 No.13) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Geodesy satellite | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 26 December 2019 23:11 | Rokot/Briz-KM | Plesetsk Site 133/3 | Gonets-M-14 Gonets-M-15 Gonets-M-16 BLITS-M | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Final flight of Rokot; Communications and geodesy satellites; | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ::

Rokot-M

::data[format=table] | Flight No. | Date / time (UTC) | Rocket, Configuration | Launch site | Payload | Payload mass | Orbit | Customer | Launch outcome | 1 | |---|---|---|---|---|---|---|---|---|---| | NET December 2024 | Rokot-M/Briz-KM2 | Plesetsk Site 133/3 | No Payload (Test Flight) | | | | TBD | | | | First test flight of Rokot-M/Briz-KM2 | | | | | | | | | | ::

References

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