Launch News Proton-M/Briz-M launch with Turksat 4B, October 16/17, 2015

Cosmic Penguin

Geek Penguin in GTO
News Reporter
Donator
Joined
Jan 27, 2011
Messages
3,672
Reaction score
2
Points
63
Location
Hong Kong
ILS, the major launch service provider for Proton rocket launches, seems to have started their long climb out of their Great Proton Curse (TM) hole that caused the depletion of their launch contracts - in fact they managed to score their first new contract in at least 2 years when Spain's Hispasat ordered 1 Proton flight in 2017 last month (though they also ordered 1 flight for Proton's most fierce future competitor - SpaceX's Falcon Heavy - at the same time)!

In the mean time, ILS continues to clear their (decreasing) launch backlog with yet another flight today. Turksat 4B is the 2nd of 2 new satellites ordered by Turkey's state owned satellite communication company for expanding the company's network in Turkey and Europe/Middle East/Africa, 1.5 years after Turksat 4A flew out of Baikonur in February 2014. Like Turksat 4A, this satellite is built by Mitsubishi Electric, probably the most experienced satellite developer in Japan. They did not have many foreign satellite orders in the past (Turksat 4B was their 3rd ever), but MELCO has picked up more orders in the past few years, one of the signs that Japan's space industry has finally attracted some commercial interests worldwide.

As always, let's hope that the local priest has :hailprobe: correctly before hand.....

This is the 4th commercial mission of the year for ILS and the 91st ILS Proton mission since the first commercial flight of the Proton in April 1996.

This is the 2nd TURKSAT satellite launched with Proton and the 2nd MELCO-built satellite launched on Proton.

Turksat4B_poster_lg.attached_images.jpg


200px-Khrunichev_logo.svg.png


ils.jpg


130914121829.jpg


200px-Mitsubishi_Electric_logo.svg.png


Launch location:

Baikonur Launch pad no. 200/39 46° 2'23.85"N, 63° 1'54.98"E

baik200-39.png


Launch dates and times:

{colsp=6}Launch times

Time Zone |
Baikonur / UTC+6
|
Moscow / UTC+3
|
Universal / UTC
|
Washington / EDT
|
Los Angeles / PDT
Launch time (Primary):
|
02:40:11​
|
23:40:11​
|
20:40:11​
|
16:40:11​
|
13:40:11​
on:
|
Oct. 17, 2015
|
Oct. 16, 2015
|
Oct. 16, 2015
|
Oct. 16, 2015
|
Oct. 16, 2015

{colsp=6}
[highlight][eventTimer]2015-10-16 20:40:11?before|after;%dd% Days %hh% Hours %mm% Minutes %ss% Seconds %c%[/eventTimer] Turksat 4B Launch[/highlight]​

Live Coverage Of The Launch:


PAYLOAD

Turksat 4B communication satellite:

turksat-4b__1.jpg


Mission Summary
Turkey signed in March 2011 a $571 million deal with Japanese technology firm Mitsubishi Electric MELCO to procure and launch Turksat 4A and Turksat 4B.

The two satellites, both offering minimum 15-year service lives, will enable Turksat AS to offer telecommunication and direct TV broadcasting services throughout Turkey, as well as in Europe, Central Asia, the Middle East and Africa. Turksat 4B will be used for Turksat AS's new broadband connectivity service in the Ka band, as well as fixed communication services via the Ku and C bands at 50 degrees east longitude.

Both satellites will be built on Mitsubishi Electric's DS-2000 satellite bus platform, a fully proven modular platform with the flexibility to handle a broad range of payload applications. As the ninth and tenth members of the DS2000 family of satellites, the Turksat 4A and 4B will further demonstrate the platform's well-established high reliability for in-orbit performance.

Turksat 4A and Turksat 4B will have a lifespan of 15 years. Turkey plans to place Turksat 4A into orbit by the last quarter of 2013. Turksat 4B will be launched in 2014.

{colsp=2}Summary
Parameter | Value
Working Orbit:​
| GEO
Orbital Location:​
| 50° East
Coverage:​
| Turkey, Europe, Central Asia, Middle East and Africa
ApA at separation:​
| 35786 km
PeA at separation:​
| 9141 km
Inc at separation:​
| 13.3°

Characteristics|
Turksat 4B
Customer:​
|
  • Turksat
Prime contractor:​
|
  • Mitsubishi Electric
Platform:​
|
  • DS2000
Mass at Separation:​
|
  • 4928 kg
Dry Mass:​
|
  • ?
Stabilization:​
|
  • 3 axis stabilized
Dimensions (stowed):​
|
  • 5.90 x 2.36 x 2.36 m
Batteries:​
|
  • ?
Payload:​
|
  • 43 Ku-band, C-band and Ka-band transponders
Life time:​
|
  • 30 years
Coverage:​
|
  • turksat-4b-tanitim-karti-page-002.jpg



|
CCE1OjaWIAAVdgS.jpg:orig

Launch Vehicle:

{colsp=2}Characteristics

proton_m.jpg
|
{colsp=2}
Proton-M / Briz-M
Prime contractor:​
|
  • Khrunichev Space Centre
    khrunichev_logo.gif
GRAU Index:​
|
  • 8K82KM
Height:​
| 58.2 m with upper stage and payload fairing

Diameter:​
| max 7.4 m

Liftoff mass:​
| 705 metric 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:​
|
briz2b.gif
  • GRAU Index: 14S43
  • Common Name: Briz-M
  • Designer & Manufacturer: Khrunichev Space Centre
  • Dimensions: Length 2.654 m, Diameter 4 m
  • Empty Mass 2.2 tonnes
  • Propellants 6 660 kg UDMH + 13 260 kg N2O4
  • Flight time: no less than 24 hours
  • Main Engine: 1 X 14D30
  • Thrust in vacuum 2.0 tonnes of force
  • ISP 328.6 s
  • Main engine restarts: up to 8 times
  • Precision Manoeuvering Engines: 4 X 11D458
  • Thrust in vacuum 400 N each
  • ISP 252 s
  • RCS Engines: 12 X 17D58E
  • Thrust in vacuum 13.3 N each
  • ISP 274 s
Payload Fairing:​
|
  • Diameter 4.35 m
  • Length 11.6 m

The vehicle's reliability statistics according to http://www.spacelaunchreport.com/log2015.html#rate:

Code:
================================================================ 
Vehicle     Successes/Tries Realzd Pred  Consc. Last     Dates    
                             Rate  Rate* Succes Fail    
================================================================
Proton-M/Briz-M   74    83    .89  .88      1    10/21/14 2001-


Turksat 4B Ascent Profile
The Proton-M first three stages place the orbital unit (OU), which consists of a Breeze-M upper stage, adapter system and Turksat 4B, into a 51.5° inclination suborbital trajectory.

Proton-M powered flight lasts 582 seconds. The OU powered flight begins at the moment of the third stage separation.

shema_rn_b_r.jpg


Immediately after the separation of the third stage booster, the Breeze-M stability engines start, damping the angular velocities of the third stage separation and then providing orbital unit orientation and stability during coast flight along a suborbital trajectory to await the first burn. The upper stage follows a five-burn injection profile.

shema_b_r.jpg


trassa_b_r.jpg


ciklogr_b_r_1.jpg


ciklogr_b_r_2.jpg


Turksat 4B Ascent Timeline

Event|Time rel lift-off|Time UTC|Comment
Ignition Start Sequence|-00:00:02.5|20:40:08.5|
Stage 1 Ignition (40% thrust)|-00:00:01.75|20:40:09.25|
Command Stage 1 (100% thrust)|-00:00:00.9|20:40:10.1|
Maximum Dynamic Pressure|00:01:02|20:41:13|
1st/2nd Stage Separation|00:02:00|20:42:11|
2nd/3rd Stage Separation|00:05:27|20:45:38|
Payload Fairing Separation|00:05:47|20:45:58|
3rd Stage/Breeze M Separation|00:09:42|20:49:53|
1st Burn Ignition|00:11:46|20:51:57|
1st Burn Shutdown|00:16:12|20:56:23|1st Burn's Duration 00:04:26
2nd Burn Ignition|01:07:33|21:47:44|
2nd Burn Shutdown|01:25:19|22:05:30|2nd Burn's Duration 00:17:46
3rd Burn Ignition|03:28:30|00:08:41|
3rd Burn Shutdown|03:42:57|00:23:08|3rd Burn's Duration 00:14:27
APT Jettison|03:43:47|00:23:58|
4th Burn Ignition|03:45:14|00:25:25|
4th Burn Shutdown|03:48:23|00:28:34|4th Burn's Duration 00:03:09
5th Burn Ignition|08:51:35|05:31:46|
5th Burn Shutdown|09:00:32|05:40:43|5th Burn's Duration 00:08:57
Spacecraft Separation|09:13:00|05:53:11|

Weather forecast for Baikonur, Kazakhstan on October 17, 2015 (2 a.m.)

Rain showers this evening with clearing overnight. Low 1C. Winds light and variable. Chance of rain 50%.

Time|Temps|Dew Point|Relative Humidity|Precip|Snow|Cloud cover|Pressure|Wind|Weather
2 AM|3°C|-3°C|61%|1%|0%|64%|1020 hPa|8 km/h WNW|
nt_mostlycloudy.svg
Mostly Cloudy

References
http://www.federalspace.ru
http://tvroscosmos.ru
http://www.khrunichev.ru
http://www.ilslaunch.com
http://tihiy.fromru.com/Rn/RN_Proton.htm
http://space.skyrocket.de/doc_sdat/turksat-4b.htm
http://www.turksat.com.tr/
http://www.mitsubishielectric.com/
http://www.tsenki.com
http://forum.nasaspaceflight.com
http://www.novosti-kosmonavtiki.ru
http://www.spacelaunchreport.com
http://english.wunderground.com/q/locid:KZXX0055
 
Top