Astra 3B,COMSATBw 2-Ariane 5ECA- 22.05.10 02:01 ЛМВ -Kourou

[Salo]

Перенос на десять дней:

http://www.aeroplans.fr/Europespace/tir-report-ariane.html
http://www.avia.ru/news/?id=1269614421

Arianespace вновь перенес запуск ракеты Ariane-5

26 марта 2010
 
/AVIA.RU/
26 марта, AVIA.RU – Европейский космический концерн Arianespace не сможет запустить ракету-носитель Ariane-5 в день своего 30-летия, передает РИА Новости.
 
Запуск во второй раз отложен на несколько дней из-за технических проблем. Ракета должна вывести на орбиту два спутника: Astra 3B выводится по заказу люксембургского телеканала SES Astra, а спутник-ретранслятор COMSATBw-2 для немецкого министерства обороны.
 
Первоначально Arianespace собирался запустить ракету 24 марта, однако отложил запуск, чтобы провести дополнительную техническую проверку пускового устройства. Пуск был перенесен на 26 марта, на эту дату выпадает 30-я годовщина создания Arianespace.
 
"Мы проверяем систему давления в пусковой установке. Нам нужно будет доставить ее с места запуска в цех окончательной сборки, эти операции по проверке займут несколько дней. Возможно, в начале следующей недели, мы объявим точную дату запуска. Мы можем сказать, что это будет через несколько дней", - сказал представитель Arianespace.
 
Всего за год запланировано семь запусков.

[Salo]

http://www.arianespace.com/news-press-release/2010/03-26-2010-v194-launch-postponed.asp

Flight 194 - ASTRA 3B & COMSATBw-2: launch delayed

Kourou, March 26, 2010

During final count-down operations for Flight 194 slated for today, an anomaly occurred in a launcher subsystem.

As a result, Arianespace has decided to replace this part, and thus to postpone the launch for a few days.

The launch vehicle and its ASTRA 3B and COMSATBw-2 satellite payloads have been placed in stand-by mode and maintained in fully safe conditions.

[Разъём]

Потек клапан системы наддува бака окислителя 1-й ступени. Предварительная информация, что повтор будет не ранее 5-6 апреля.

[Salo]

Спасибо!

[Salo]

http://www.spaceflightnow.com/ariane/v194/preview/

50th Ariane 5 rocket ready for launch Friday evening
BY STEPHEN CLARK
SPACEFLIGHT NOW
Posted: March 26, 2010

A commercial satellite to distribute television programs to Europe and a German military communications bird are shrouded inside an Ariane 5 rocket scheduled to lift off Friday evening on its 50th flight.

The 166-foot-tall rocket can launch during a 49-minute window opening at 2203 GMT (6:03 p.m. EDT) Friday. The Ariane 5 will blast off from the French-run spaceport in Kourou, French Guiana.

The rocket rolled atop a mobile launch table to the ELA-3 pad Thursday morning. The trip on dual rail tracks took nearly two hours, according to Arianespace, the rocket's commercial operator.

Once on the launch pad, the Ariane 5 was hooked up to the complex's electrical, fluid and communications systems for its one-day stay.

The mission will be the 50th launch of the Ariane 5 rocket since its disastrous debut flight in 1996, which was ended by an infamous computer glitch causing the vehicle to spin out of control 30 seconds after liftoff.

The Ariane 5 rocket overcame its dark beginnings and has amassed 35 straight successful launches since 2003. The European rocket now leads the cutthroat commercial launch industry.

Friday's launch is typical of Ariane 5 missions today. Powered into space by the combined force of hydrogen and solid rocket propulsion, the Ariane 5 ECA launcher will drop off two communications satellites in a preliminary transfer orbit. From there, the spacecraft will push themselves to their permanent stations in the geosynchronous arc 22,300 miles above the planet.

It will take more than 33 minutes for the Ariane 5 to deploy its payloads in an elliptical orbit that will take the satellites as far as 22,236 miles from Earth. The orbit should have an inclination angle of 3 degrees to the equator, according to Arianespace, which has managed the Ariane 5 rocket's commercial operations since 1999.

After providing the bulk of the thrust needed to propel that Ariane 5 into the upper atmosphere, the launcher's two cylindrical solid rocket boosters will be released at T+2 minutes, 20 seconds.

The hydrogen-fueled Vulcain 2 main engine of the first stage will give way to a cryogenic upper stage just after the 9-minute point in the flight. The Ariane 5's second stage will fire for nearly 16 minutes before shutting down at T+24 minutes, 45 seconds.

ASTRA 3B will separate from the Ariane 5 first at T+Plus 27 minutes, 40 seconds, according to Arianespace data. A barrel-shaped satellite adapter will be jettisoned three-and-a-half minutes later, exposing the COMSATBw 2 spacecraft for deployment at T+33 minutes, 21 seconds.

After arriving in geosynchronous orbit, ASTRA 3B will be positioned at 23.5 degrees east longitude to replace two aging satellites covering communications users across Europe and the Middle East.

Operated by SES ASTRA, the 12,063-pound satellite will broadcast television services directly to homes in Europe and provide two-way broadband communications for Middle East customers. ASTRA 3B's service life is projected to be at least 15 years.

COMSATBw 2 will join a nearly identical satellite launched in October to serve Germany's military with secure communications. The sister satellites will ensure the German Armed Forces receives reliable voice and data relay, video and multimedia broadcasting services for the next 15 years.

Germany's new satellite constellation will reach from the Americas to the Far East. COMSATBw 2 will focus its coverage on Europe and Africa.

Controllers at the Guiana Space Center will begin the Ariane 5's final countdown at 1033 GMT (6:33 a.m. EDT) Friday. Four hours later, at 1433 GMT (10:33 a.m. EDT), engineers will check the rocket's electrical systems. The first stage liquid oxygen and liquid hydrogen propellant loading sequence should begin just after 1700 GMT (1 p.m. EDT). Fueling of the second stage is expected about an hour later.

A final test of telemetry, tracking and command connections between the launcher and ground systems is scheduled for around 2053 GMT (4:53 p.m. EDT).

Seven minutes before launch, computers will take control of the countdown in a synchronized sequence of events to pressurize propellant tanks, switch to on-board power and take the rocket's guidance system to flight mode.

The Vulcain 2 engine will ignite as the countdown clock reaches zero, followed by a health check and ignition of the Ariane 5's solid rocket boosters seven seconds later to send the 1.7 million-pound launcher skyward.

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=20359.msg565487#msg565487

According to Forum Conquete Spatiale new launch date is 8 April.

[Salo]

http://www.spaceflightnow.com/tracking/index.html

NET April 8    Ariane 5  •  Astra 3B & COMSATBw 2
Launch window: Approx. 2158-2148 GMT (5:58-6:48 p.m. EDT)
Launch site: ELA-3, Kourou, French Guiana

Arianespace Flight 194 will use an Ariane 5 rocket with a cryogenic upper stage to launch the Astra 3B direct-to-home television and broadband satellite for Europe and COMSATBw 2 communications satellite for the German military. Delayed from March 24 for rocket issue. Delayed from March 26 due to launcher subsystem problem. [April 1]

[Salo]

http://www.arianespace.com/news-press-release/2010/04-06-2010-v194-launch-date.asp

Arianespace launch 194 – ASTRA 3B & COMSATBw-2: Liftoff is set for Friday, April 9, 2010

Evry, France, April 6, 2010

Following additional checks, Arianespace has decided to restart the final countdown for its mission with the ASTRA 3B and COMSATBw-2 satellites.

Liftoff of the Ariane 5 launcher is now set for the night of Friday, April 9, as early as possible in the following launch window:
From 6:59 p.m. to 7:48 p.m., local time in Kourou, French Guiana
From 5:59 p.m. to 6:48 p.m. in Washington, D.C.
From 9:59 p.m. to 10:48 p.m. UTC, on April 9.
From 11:59 p.m. to 12:48 a.m. in Paris, on April 9/10.

[Salo]

http://www.astrium.eads.net/en/news/50th-ariane-5-ready-to-launch-astra-3b-and-comsatbw-2.html

50th Ariane 5 set for launch
April 07 2010
 
Ariane 5 Flight 194 – ready to launch Astra 3B and COMSATBw-2 on 9 April

The first Ariane 5 mission of 2010, due for lift-off from the European Spaceport at Kourou, French Guiana on 9 April, will orbit two communications satellites developed by Astrium: Astra 3B for European operator SES ASTRA and COMSATBw-2 the German Armed Forces.

The 49-minute launch window opens at 21.59 UT (18.59 local time in Kourou, 23.59 in continental Western Europe).

Astrium is single prime contractor for the Ariane 5 system, responsible for delivery to Arianespace of a fully integrated and tested launch vehicle. This first launch of 2010 is also the fiftieth for Ariane 5.

[us2-star]

Трансляция будет тут?
http://www.videocorner.tv/videocorner2/live_flv/index.php?langue=en

[Брабонт]

Трансляция будет тут?

Да, уже началась.

[Salo]

У меня только тут:
http://www.videocorner.tv/videocorner2/live_flv/index_fr.php?langue=fr

[us2-star]

Встали на -7..

[Брабонт]

Ожидаемое время пуска 02:24 лмв. Стартовое окно закрывается в 02:48 лмв.

[Salo]

Пошёл отсчёт.

[Salo]

Пять минут до старта!

[Salo]

Одна минута!

[Salo]

Отбой на 42 секунде!  

[Salo]

Всё сначала.

[Dude]

Отменила автоматика, "из-за проблем в интерфейсе связи с РН". Ранее -7 мин это вроде был запланированный hold.