Galaxy 30, MEV-2, BSAT-4b - Ariane 5 ECA (VA253) [№ L5112] - Kourou ELA-3 - 15.08.2020, 22:04 UTC

[tnt22]

https://www.arianespace.com/press-release/launch-va253-new-targeted-launch-date/

Ariane 5 | August 3, 2020
Launch VA253: new targeted launch date

The progress of operations currently underway at the Final Assembly Building has enabled August 14 to be envisioned as the launch date for Ariane Flight 253 (VA253), with the possibility of an optimization in the process for the mission to be performed one day earlier.

If the flight is on August 14, liftoff will occur as early as possible during the following launch window:

• Between 5:33 p.m. and 6:20 p.m. Washington, D.C. time,
• Between 6:33 p.m. and 7:20 p.m. Kourou, French Guiana time,
• Between 21:33 and 22:20 Universal time (UTC),
• Between 11:33 p.m. and 12:20 a.m. Paris time, in the night of August 14 to 15,
• Between 06:33 a.m. and 07:20 a.m. Japan time, in the morning of August 15.

Arianespace is applying its standard procedures to maintain the highest level of reliability for the benefit of its customers. The Ariane 5 launch vehicle and its three spacecraft payloads remain in stable and safe conditions.

14 августа 2020 г. с 21:33 до 22:20 UTC / 15 августа 2020 г. с 00:33 до 01:20 ДМВ

[tnt22]

https://tass.ru/kosmos/9114379

4 АВГ, 04:47
Перенесенный запуск с Куру ракеты Ariane 5 назначен на 14 августа
Ракете предстоит вывести на орбиту спутник BSAT-4b, запускаемый для японского оператора связи B-SAT, и спутник Galaxy 30 для международного оператора Intelsat

ТАСС, 4 августа. Корпорация Arianespace приняла решение осуществить дважды перенесенный запуск с космодрома Куру ракеты Ariane 5 с тремя спутниками на борту 14 августа. Об этом сообщается в заявлении, опубликованном в понедельник на сайте компании.

"Ход операций в цехе финальной сборки позволяет наметить запуск Ariane <...> на 14 августа", - говорится в сообщении.

Компания отмечает, что при определенных условиях старт может быть осуществлен на день раньше.

Изначально запуск должен был состояться 28 июля, однако его перенесли на 31 июля, обосновав необходимостью провести дополнительные технические проверки. 31 июля Ariane 5 вновь была снята со стартового стола и возвращена в сборочный цех из-за отказа датчика в баке с жидким водородом основной ступени ракеты.

Ракете предстоит вывести на орбиту спутник BSAT-4b, запускаемый для японского оператора связи B-SAT, и спутник Galaxy 30 для международного оператора Intelsat. Они будут использоваться для прямого высококачественного радио- и телевещания. В космос также отправится аппарат MEV-2. Он принадлежит американской корпорации Northrop Grumman и предназначен для продления сроков эксплуатации спутников на геостационарной орбите.

[Новый]

Arianespace дорого будет стоить этот перенос.

https://www.spaceintelreport.com/star-spangled-selection-ses-signs-with-spacex-falcon-9-ula-atlas-5-to-launch-c-band-clearing-satellites/

Европейский оператор SES отдал 2 запуска по 2 аппарата компаниям SpaceX и ULA. Запуски в 2022.

[Zmej Gorynych]

Arianespace дорого будет стоить этот перенос.

https://www.spaceintelreport.com/star-spangled-selection-ses-signs-with-spacex-falcon-9-ula-atlas-5-to-launch-c-band-clearing-satellites/

Европейский оператор SES отдал 2 запуска по 2 аппарата компаниям SpaceX и ULA. Запуски в 2022.

Вы думаете, это связанные между собой вещи? В конце концов, у SpaceX тоже переносы бывают. Разве причина не в цене?

[Новый]

Вы думаете, это связанные между собой вещи? В конце концов, у SpaceX тоже переносы бывают. Разве причина не в цене?

Истеблишменту SES (напоминаю это европейская компания) был необходим весомый повод отказать Arianespace в данном заказе. Хотя Ариану сейчас поддержка крайне важна с учетом мутных перспектив перехода на А-6. Все ждали чем закончится VA-253 и, в случае аварии, это было бы причиной оказа. А так даже аварии не потребовалось.

В итоге, SES впервые за 15 лет (!) отдает заказ ULA и, принимая во внимание цены на Atlas-5, дело не в цене.

Если посмотреть на запуски SES в них всегда была большая доля Ариана и Протона. Потом Протон полностью заменил F-9 (ку-ку, Роскосмос!). Теперь создан новый прецедент и, поверьте, он крайне беспокоит Arianespace, которому четко намекнули, что он может остаться в нише запусков Союзами 03b.

[tnt22]

https://www.arianespace.com/mission-update/va253-lrr/

Ariane 5 | August 12, 2020
Ariane 5 is given the go-ahead for launch on August 14 with a triple satellite payload



Arianespace Flight VA253 – which will utilize an increased-lift Ariane 5 version – is a "go" for launch on August 14 following an additional Launch Readiness Review (LRR) performed today in French Guiana.

This approval clears the way for Ariane 5's return to the Spaceport's ELA-3 launch zone tomorrow, followed by the final countdown leading to an evening liftoff on Friday.

The mission to geostationary transfer orbit will deploy two telecommunications satellites: Galaxy 30 for Intelsat, and BSAT-4b for B-SAT, both of which are long-time Arianespace customers. Also carried by Ariane 5 is the Mission Extension Vehicle-2 (MEV-2) for Northrop Grumman's wholly-owned subsidiary, SpaceLogistics LLC, which is a first-time user of Arianespace launch services.

Galaxy 30 was built by Northrop Grumman for Intelsat and will be the first payload deployed during the Ariane 5 mission. This satellite is to provide Ultra-High-Definition video distribution/broadcast and broadband services that cover North America.

MEV-2 is stacked under Galaxy 30 on Ariane 5, and is to be the second payload released during Flight VA253. The SpaceLogistics LLC-built spacecraft is designed to offer life extension services for in-orbit satellites, and its initial target is the Intelsat 10-02 relay platform, which has been in geostationary orbit since 2004.

Completing Flight VA253's mission sequence will be the deployment of BSAT-4b, configured for Ultra-High-Definition (UHD, 4K and 8K) direct-to-home television broadcasting across Japan. Built by Maxar Technologies, BSAT-4b will be operated by Japan's Broadcasting Satellite System Corporation (B-SAT).

The launcher configuration used for Flight VA253 marks the final step in Ariane 5's latest performance improvement program, which was decided in 2016 and has increased the launch vehicle's total payload capacity by 300 kg. ArianeGroup is production prime contractor for Ariane 5, delivering the launcher to Arianespace for operation.

Liftoff of Flight VA253 is planned as early as possible within the following launch window on August 14:

• Between 5:33 p.m. and 6:20 p.m. Washington, D.C. time,
• Between 6:33 p.m. and 7:20 p.m. Kourou, French Guiana time,
• Between 21:33 and 22:20 Universal time (UTC),
• Between 11:33 p.m. and 12:20 a.m. Paris time, in the night of August 14 to August 15,
• Between 06:33 a.m. and 07:20 a.m. Japan time, in the morning of August 15.

[tnt22]

Обновлены (в соответствии с реалиями) брошюры миссии

DDP_VA253_GB_6.pdf - 1.2 MB, 12 стр, 12.08.2020 15:07:41 UTC

DDP_VA253_FR_6.pdf - 1.2 MB, 12 стр, 12.08.2020 15:07:43 UTC

[tnt22]

VA253 Launch Readiness Review

VA253-RAL-EN-3.pdf - 139.4 KB, 2 стр, 12.08.2020 14:27:07 UTC

[zandr]

arianespace

Вы не можете просматривать это вложение.

[tnt22]

 ArianeGroup @ArianeGroup 2 ч. назад

The new targeted launch date for #Flight253 is tomorrow, August 14
5:33 p.m. Washington, D.C. time
6:33 p.m. Kourou
21:33 UTC
11:33 p.m Paris tim
Join us live on Facebook! (And yes, that's a new version of the mission patch! )

[tnt22]

https://www.arianespace.com/press-release/va253-delay-weather/

Ariane 5 | August 13, 2020
Flight VA253: Ariane 5 – Galaxy 30/MEV-2/BSAT-4b – Launch targeted for August 15 due to weather conditions

The Ariane 5 with its three satellite payloads for Flight VA253 was transferred today to the Guiana Space Center's ELA-3 launch zone. However, due to currently unfavorable wind conditions at altitude above the Guiana Space Center, Arianespace has decided not to initiate the final phase of launch preparation operations.

The soonest possible launch date for Flight VA253 is Saturday, August 15, as early as possible during the following launch window:

• Between 5:33 p.m. and 6:20 p.m. Washington, D.C. time,
• Between 6:33 p.m. and 7:20 p.m. Kourou, French Guiana time,
• Between 21:33 and 22:20 Universal time (UTC),
• Between 11:33 p.m. and 12:20 a.m. Paris time, in the night of August 15 to 16,
• Between 06:33 a.m. and 07:20 a.m. Japan time, in the morning of August 16.

The Ariane 5 launch vehicle and the three satellite payloads: Galaxy 30; MEV-2 and BSAT-4b are in stable and safe conditions.

[tnt22]

https://www.militarynews.ru/story.asp?rid=1&nid=536250&lang=RU

Запуск французской ракеты Ariane 5 перенесен еще на сутки - компания
14.08.2020 0:21:46

Париж. 14 августа. ИНТЕРФАКС - В связи с непогодой запуск тяжелой ракеты-носителя Ariane 5 Европейского космического агентства (ЕSА), которая должна была стартовать на орбиту с космодрома Куру во Французской Гвиане с тремя коммерческими космическими аппаратами, перенесен еще на сутки, сообщила компания-оператор Arianespace.

"Ближайшая возможная дата запуска VA253 планируется в субботу, 15 августа", - говорится в сообщении.

Попытка пуска будет предпринята в субботу во временное окно с 17:33 по 18:20 по времени Восточного побережья США (в воскресенье с 0:33 по 01:20 мск).

Запуск ракеты планировалось осуществить еще в конце июля. Из-за выявленных технических проблем он неоднократно откладывался.
...

[tnt22]

Очередное обновление:

DDP_VA253_EN_7.pdf - 1.2 MB, 12 стр, 14.08.2020 17:13:14 UTC

DDP_VA253_FR_7.pdf - 1.2 MB, 12 стр, 14.08.2020 17:12:56 UTC

[tnt22]

 DutchSpace @DutchSpace 17 ч. назад

Nice shot, while we wait for tomorrow... #VA253 #Ariane5 #CSG #ESA

[tnt22]

COUNTDOWN
Hr:Mn:Sc	Event	GFT	UTC	ДМВ
11:23:00	Start of final countdown	07:10:00	10:10:00	13:10:00
10:33:00	Check of electrical systems	08:00:00	11:00:00	14:00:00
04:38:00	Start of filling of EPC with LOX and LH	13:55:00	16:55:00	19:55:00
03:28:00	Start of filling of ESC-D with LOX and LH	15:05:00	18:05:00	21:05:00
03:18:00	Chilldown of Vulcain main stage engine	15:15:00	18:15:00	21:15:00
01:15:00	Check of connections between launcher and the telemetry, tracking and command systems	17:18:00	20:18:00	23:18:00
00:07:00	"All systems go" report, start of synchronized sequence	18:26:00	21:26:00	00:26:00
00:04:00	Tanks pressurized for flight	18:29:00	21:29:00	00:29:00
00:01:00	Switch to onboard power mode	18:32:00	21:32:00	00:32:00
00:00:05	Opening command for the cryogenic arms	18:32:55	21:32:55	00:32:55
00:00:04	Onboard systems take over	18:32:56	21:32:56	00:32:56
00:00:00	Reference time	18:33:00	21:33:00	00:33:00

[tnt22]

 DutchSpace @DutchSpace 2 ч. назад

Waiting... #VA253 #CSG #ESA




43 мин. назад

What it looks like when you are trying to sneak up to an Ariane 5 in her natural habitat ;-) #VA253 #CSG #ESA

[tnt22]

Об очередной трансляциях пуска

Arianespace Flight VA253 – Galaxy 30 / MEV-2 / BSAT-4b - 31 July 2020 (EN)

youtu.be/KoGaUaGwpfE

Arianespace vol VA253 – Galaxy 30 / MEV-2 / BSAT-4b - 15 August 2020 (FR)

youtu.be/Bn7ed4sxLTg

Начало трансляции - 15 августа 2020 г. в 20:30 UTC / 23:30 ДМВ

[tnt22]

 Arianespace @Arianespace 1 ч. назад

#Arianespace's fifth mission of 2020 is scheduled to lift off later today from the Spaceport in French Guiana. Follow the hashtag #VA253 for updates on this #Ariane 5 mission – and note the local time so you can watch the live broadcast via http://Arianespace.com or YouTube.

[tnt22]

08/15/2020 19:41 Stephen Clark

Minus-4 hours, 51 minutes. The countdown officially commenced at 1010 GMT (6:10 a.m. EDT), with clocks at the Guiana Space Center timed for a targeted liftoff at 2133 GMT (5:33 p.m. EDT; 6:33 p.m. French Guiana time). The launch window extends for 47 minutes.

Electrical systems checks on the Ariane 5 began at 1100 GMT (7 a.m. EDT).

Workers also put finishing touches on the launch pad, including the closure of doors, removal of safety barriers and configuring fluid lines for fueling. The flight program for today's launch was also expected to be loaded into the rocket's computer.

After a weather status report, the launch team will begin the process to fuel the rocket shortly with super-cold liquid hydrogen and liquid oxygen propellants around 1655 GMT (12:55 p.m. EDT). First, ground reservoirs and the rocket's helium tank will be pressurized, then the fuel lines will be chilled down to condition the plumbing for the flow of super-cold liquid hydrogen and liquid oxygen, which are stored at approximately minus 423 degrees Fahrenheit and minus 298 degrees Fahrenheit, respectively.

It is expected to take approximately two hours to fill the Ariane 5 core stage tanks.

A similar procedure for the Ariane 5's cryogenic upper stage is set to commence at 1805 GMT (2:05 p.m. EDT).

Chilldown conditioning of the Vulcain 2 first stage engine will began at 1815 GMT (2:15 p.m. EDT), and a communications check between the rocket and ground telemetry, tracking and command systems is planned at 2018 GMT (4:18 p.m. EDT).

A final weather briefing will come at T-minus 10 minues, and then the computer-controlled synchronized countdown sequence will begin seven minutes before launch 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.

Five seconds after blastoff, the rocket will begin pitching east from the ELA-3 launch pad, surpassing the speed of sound less than a minute into the mission. The Ariane 5's twin solid rocket boosters will jettison nearly two-and-a-half minutes after liftoff.

Once above the dense atmosphere, the launcher's payload fairing will fall away at an altitude of more than 70 miles — about 112 kilometers -- at Plus+3 minutes, 20 seconds. The Ariane 5's first stage will shut down 8 minutes, 40 seconds, after liftoff, followed moments later by stage separation and ignition of the hydrogen-fueled cryogenic HM7B upper stage engine.

The rocket's upper stage will fire more than 16 minutes, accelerating to a velocity of 21,000 mph, or more than 9.3 kilometers per second, to reach an orbit with a planned high point of 35,738 kilometers (22,206 miles), a targeted low point of 250 kilometers (155 miles) and an inclination of 6 degrees.

The release of the Galaxy 30 communications satellite will come first at Plus+27 minutes, 47 seconds. The MEV-2 satellite servicing vehicle, attached below Galaxy 30, will deploy next at Plus+34 minutes, 22 seconds

Once Galaxy 30 and MEV-2 are deployed, the Ariane 5 rocket's barrel-shaped Sylda 5 dual-payload adapter will be jettisoned at Plus+35 minutes, 52 seconds.

The BSAT-4b television broadcast satellite will separate from the lower portion of the payload stack at Plus+47 minutes, 39 seconds.

[tnt22]

Эт уже боле на правду похоже:

 Arianespace @Arianespace 14 мин. назад

The launch broadcast for #Arianespace's fifth mission of 2020 begins in less than one hour. Make sure you are in place to watch the event via http://Arianespace.com or YouTube. #VA253

21:18 UTC / 00:18 ДМВ