Launch News Oko-2 (Cosmos-2479) atop Proton-K/Block DM-2 on March 30, 2012

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On March, 30th, Russia will launch the last of Oko-2 Early Missile Attack warning satellites on the last produced Proton-K launcher. This GEO-bound satellite should perform constant survelliance of Earth and detect launches of ballistic missiles that might pose threat to Russian territory. Oko sats, analogous to US DSP system have a long heritage, and still no operating replacement of a newer generation (which is known to be in development, though). Proton-K will use Block DM-2 upper stage for this launch.

Launch location:

Baikonur Baikonur Launch pad no. 81/24 46°4'15.38"N, 62°59'5.11"E

81_24.png


Launch dates and times:

[table="head"]{colsp=6}Launch times

Time Zone|
Australia - Sydney/UTC+11
|
Baikonur / UTC+6
|
Moscow / UTC+4/
|
Universal / UTC
|
Washington / EDT

Launch time (Primary):
|
4:49 p.m.​
|
11:49​
|
09:49​
|
05:49​
|
12:49 a.m.​

on:
|
Mar. 30, 2012
|
Mar. 30, 2012
|
Mar. 30, 2012
|
Mar. 30, 2012
|
Mar. 30, 2012

{colsp=6}
[highlight][eventTimer]2012-03-30 05:49?before|after;%dd% Days %hh% Hours %mm% Minutes %ss% Seconds %c%[/eventTimer] Oko-2 (US-KMO) launch[/highlight]​
[/table]

Live Coverage Of The Launch:

None available, sorry.

PAYLOAD

Oko-2 (US-KMO) is a military Early Missile Warning satellite. Oko means Eye in high style Russian.

The US-KMO early warning satellites of the second generation were developed as part of the Oko-1 system, which was supposed to complement and then replace the first generation US-KS satellite in the Oko space-based early warning system. Development of the US-KMO system began in 1979. In contrast to the first-generation system, which was designed to detect only launches of ICBMs from bases in U.S. territory, the US-KMO system was designed to provide coverage of SLBM launches from oceans as well.

The satellites feature an IR-telescope with diameter of main mirror of 1 m. Length of the deployable sunshade is 4.5 m. The most important distinguishing feature of the second-generation satellites was their look-down capability. These satellites were to be deployed in geosynchronous orbits, from which they could provide coverage of most of the oceans. It is likely that these satellites are supposed to replace the US-KS first-generation satellites in GEO and supplement the US-K satellites in HEO orbits.

[table="head"]Characteristics|
US-KMO

Customer:​
|
  • Roscosmos, Russian Ministry of Defense

Prime contractor:​
|
  • Lavochkin Association (NPO)

Mission:​
|
  • Missile Attack Early Warning System

GRAU Index:​
|
  • 71Kh6

Type of Platform:​
|
  • Pressurized

Mass:​
|
  • 2 600 kg

Stabilization:​
|
  • 3 axis stabilized

Observation Payload:​
|
  • IR telescope with 1m aperture

On-board power:​
|
  • ?

Life time:​
|
  • 5-7 years

Coverage area:​
|
  • Global

|
prognoz__1.jpg
[/table]

Launch Vehicle:

[table="head"]{colsp=2}Characteristics

proton.jpg
|[table="head"]{colsp=2}
Proton-K / Block DM2

Prime contractor:​
|
  • Khrunichev Space Centre

GRAU Index:​
|
  • 8K82K

Height:​
| ~57 m with upper stage and payload fairing

Diameter:​
| max 7.4 m

Liftoff mass:​
| ~700 tonnes

Payload mass:​
| ~22 tonnes at LEO

1st stage:​
|
  • 6 X RD-275 engines
  • Empty 30.6 tonnes
  • Propellants 419.41 tonnes (UDMH and NTO)
  • Thrust in vacuum 1069.8 tonnes of force
  • Thrust at sea level 971.4 tonnes of force

2nd stage:​
|
  • 1 X RD-0211 engine 3 X RD-0210 engines
  • Empty 11.4 tonnes
  • Propellants 156.113 tonnes (UDMH and NTO)
  • Thrust in vacuum 237.4 tonnes of force

3rd stage:​
|
  • 1 X RD-0213 engine & 1 X RD-0214 vernier engine
  • Empty 3.7 tonnes
  • Propellants 46.562 tonnes (UDMH and NTO)
  • Thrust in vacuum 59.36 (core) + 3.15 (vernier) tonnes of force

Upper Stage:​
|
dminfarning3lf.png

  • GRAU Index: 11S861
  • Common Name: Block DM2
  • Designer: RKK Energia
  • Manufacturer: "Krasmash" Krasnoyarsk Machine Building Plant
  • 1 X RD-58M engine
  • Empty 2.2 tonnes
  • Diameter 4.1 m
  • Length 6.26 m
  • Propellants 15.095 tonnes (LOX and Kerosene RG-1)
  • Thrust in vacuum 8.67 tonnes of force
  • ISP 254 s
  • Flight time 7-21 hours

Payload Fairing:​
|
  • Diameter 4.35 m
  • Length 10 m

[/table]
[/table]


The vehicle's reliability statistics according to http://www.spacelaunchreport.com/log2011.html#rate:

Code:
================================================================ 
Vehicle     Successes/Tries Realzd Pred  Consc. Last     Dates    
                             Rate  Rate* Succes Fail    
================================================================
Proton-K/DM-2   100   108    .93  .92     14    10/27/99 1982-
Weather forecast for Baikonur, Kazakhstan on March 30, 2012 (12 p.m.)

Time|Temps|Wind Chill|Heat Index|UV Index|Dew Point|Relative Humidity|Precip|Snow|Clouds|Visibility|Wind|Weather
12 PM|10°C|8°C|10°C|4 Moderate|0°C|48%|0%|0%|3%|16KM|ENE 3.1 m/s |
wx_85.png
Sunny
References
http://www.federalspace.ru
http://tvroscosmos.ru
http://www.tsenki.com/launch_services/help_information/launch/2011/?EID=88633
http://www.khrunichev.ru
http://tihiy.fromru.com/Rn/RN_Proton.htm
http://arkos.kharkov.ua/
http://claw.ru/a-kosmos/347.html
http://forum.nasaspaceflight.com
http://www.novosti-kosmonavtiki.ru
http://www.spacelaunchreport.com
http://www.intellicast.com/Local/Forecast.aspx
 
Last edited:
I didn't knew there were still Proton-K around. I though they were long replaced by the Proton-M.
 
Production stopped in 2007, but it looks like they have one left, maybe similar to the Delta II.
Last launch of the Proton-K was on 28th of February 2009 in the same configuration.
 
Yup, this rocket has been stored for several years before final shipped to Baikonur for this launch. This will be the last Proton-K to fly after 45 years in service. The Oko flying is also the last in the line, as well as the stock DM-2 upper stage.

Here's a good overview of the history of the Proton rocket by William Graham of NSF.com:
http://www.nasaspaceflight.com/2012/03/russian-proton-k-rocket-launch-us-kmo/
 
Thank you Proton-K for Salyut, Mir and Zarya and Zvezda without you space stations would be different:salute:
 
Protons are starting the year very well ! Let's keep it this way ! :thumbup:
 
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