Inmarsat 5 F4 – Falcon 9 – Кеннеди LC-39A – 15.05.2017 – 23:21 UTC

[tnt22]

Вывоз

Massimiliano Ladovaz‏ @M_Ladovaz 13 мин назад

#I5F4 rolling to the pad @InmarsatGlobal

[Max Andriyahov]

Оффтоп: однако процесс разборки башни Шаттлов за месяц совсем не продвинулся. Из-за шпионского спутника остановили работы?

[Max Andriyahov]

Ну и удачи этим парням. Пригодится.

[tnt22]

Прогноз погоды L-1
L-1 Forecast 15 May Launch
 

[S.Chaban]

Думаю просто ждут когда запуски перенесут на другую площадку 
Чтобы Все недоделки за один присест доделать

[tnt22]

http://www.spacex.com/press/2017/05/14/inmarsat-5-flight-4

May 14, 2017

Inmarsat-5 Flight 4

 SpaceX is targeting launch of Inmarsat-5 Flight 4 from historic Launch Complex 39A (LC-39A) at NASA's Kennedy Space Center in Florida. The 49-minute launch window opens on Monday, May 15, at 7:21 p.m. EDT, or 23:21 UTC. A backup launch window opens on Tuesday, May 16, at 7:21 p.m. EDT, or 23:21 UTC. SpaceX will not attempt to land Falcon 9's first stage after launch due to mission requirements.

A mission press kit is available here.

P.S. Информация на странице http://www.spacex.com/webcast приведена в соответствие с вышеприведённой
P.P.S Press-kit inmarsat5f4presskit.pdf тоже исправлен в части пускового окна

[tnt22]

На странице http://www.inmarsat.com/i5f4/ запущен обратный отсчет.

[tnt22]

     

Inmarsat‏Подлинная учетная запись @InmarsatGlobal 11 мин. назад

#I5F4 has been loaded in the @SpaceX Proton 9 rocket & rolled out to LC-39A. Countdown to launch tomorrow begins ! http://www.inmarsat.com/i5f4/ 

М-да, если потом не удалят с ленты или не исправят...

Update
Сообщение https://twitter.com/InmarsatGlobal/status/8638197981 таки удалили:

К сожалению, такой страницы нет!

[Атяпа]

А жаль!
Всё таки Протон 9! Да ещё с LC-39A. 
Красота!

[tnt22]

Во-во!
Крис Берджин не даст соврать!

Chris B - NSF‏ @NASASpaceflight 34 мин. назад

Falcon 9 rollout to 39A ahead of Monday's launch of Inmarsat 5 F4. Can't RT as Inmarsat deleted it due to funny typo. Anyway, screenshot...

[tnt22]

 Таки решили исправить - новый твит:

Inmarsat‏Подлинная учетная запись @InmarsatGlobal 2 мин назад

#I5F4 has been loaded into a @SpaceX Falcon 9 & rolled out to LC-39A. Countdown to launch tomorrow begins! http://www.inmarsat.com/i5f4/ 

Спойлер

[свернуть]

[George]

Max Andriyahov пишет:
Оффтоп: однако процесс разборки башни Шаттлов за месяц совсем не продвинулся. Из-за шпионского спутника остановили работы?

Башня должна быть перестроена для посадки экипажа в "Драгон".

№39а в своей истории не знала таких темпов пусков. 

[Boris Mekler]

Перестраивают башню FSS (Fixed Service Structure), она осталась ещё от Сатурнов. Разбирают потихоньку подвижную RSS (Rotating Service Structure) которая была сделана для Шаттлов и больше не нужна.

[tnt22]

https://spaceflightnow.com/2017/05/14/falcon-9-set-to-launch-inmarsat-satellite-for-in-flight-wifi-mobile-broadband/

Falcon 9 set to launch Inmarsat satellite for in-flight wifi, mobile broadband             
May 14, 2017 Stephen Clark

...

The Boeing-made Inmarsat 5 F4 communications craft... will launch from NASA's Kennedy Space Center aboard a 229-foot-tall (70-meter) Falcon 9 booster at 2321 GMT (7:21 p.m. EDT) Monday, the opening of a 49-minute launch window.

Спойлер

...

SpaceX's launch conductor will poll the launch team at 2208 GMT (6:08 p.m. EDT) for a "go" to begin loading super-chilled, densified propellant into the Falcon 9 rocket. RP-1 kerosene should be pumped into the Falcon 9 beginning at 2211 GMT (6:11 p.m. EDT), followed by cryogenic liquid oxygen at 2236 GMT (6:36 p.m. EDT).

The propellants will continue flowing into the rocket until the final few minutes of the countdown, when the Falcon 9 will switch to internal battery power and its tanks will be pressurized for liftoff.

The Falcon 9's computers will command nine Merlin 1D engines to ignite at the base of the rocket at T-minus 3 seconds. Following an automated health check, the launcher will climb away from pad 39A with 1.7 million pounds of thrust, veering to the east over the Atlantic Ocean.

...

The Falcon 9's first stage engines will fire until T+plus 2 minutes, 45 seconds, and then the 14-story booster will fall away from the rocket's upper stage around four seconds later. A single Merlin 1D engine, fitted with an enlarged nozzle for better efficiency in the airless vacuum of space, will start up at T+plus 2 minutes, 56 seconds, delivering 210,000 pounds of thrust for nearly six minutes to steer into a preliminary orbit.

The rocket's nose cone, a composite fairing that shields the satellite during the first few phase of flight, will drop away from the Falcon 9 during the second stage burn at T+plus 3 minutes, 35 seconds.

After shutdown of the second stage engine, the rocket and the attached Inmarsat 5 F4 satellite will speed across the Atlantic Ocean, flying over Cape Verde before firing its engine again near the equator at T+plus 26 minutes, 59 seconds.

Franci said the 56-second engine firing is designed to push the telecom payload into a "supersynchronous" transfer orbit, with an apogee, or high point, above the satellite's 22,300-mile-high (35,800-kilometer) final operating position.

Parameters for the target orbit are not available, he said, because the upper stage engine is programmed to keep firing until it is almost out of fuel, a technique rocket engineers call a "minimum residual shutdown." The tank-draining burn is intended to ensure the Inmarsat 5 F4 satellite goes into as high of an orbit as possible, reducing the work the craft's own thrusters need to do in the coming months.

Deployment of the satellite from the Falcon 9's upper stage is scheduled for T+plus 31 minutes, 48 seconds.

Around a half-dozen orbit-adjustment firings by the satellite's hydrazine-fueled thruster are planned in the first couple of weeks after launch, followed by the extension of Inmarsat 5 F4's solar panels May 28 to a wingspan of 133 feet — more than 40 meters — wider than the wingspan of a Boeing 737 passenger jet, Franci said.

Then the satellite's xenon-ion maneuvering jets will take over to fine-tune its path around Earth, settling in a circular orbit directly over Earth's equator by mid-August. If the Falcon 9 can boost the craft into a higher-than-expected orbit, several weeks could be shaved off the orbit-raising schedule, according to Franci.

...

Inmarsat 5 F4 should be operational around the end of this year, and its first job will likely be to grow Inmarsat's broadband network load over Europe, the Middle East, North Africa and the Indian subcontinent, Franci said.

...

[свернуть]

[tnt22]

https://spaceflightnow.com/2017/05/14/falcon-9-launch-timeline-with-inmarsat-5-f4/

Falcon 9 launch timeline with Inmarsat 5 F4
 May 14, 2017 Stephen Clark

SpaceX's Falcon 9 rocket is set for liftoff from Cape Canaveral early Thursday, heading due east over the Atlantic Ocean to deliver the Inmarsat 5 F4 communications satellite into orbit 32 minutes later.

The 229-foot-tall (70-meter) rocket is poised for launch from pad 39A at NASA's Kennedy Space Center in Florida at 7:21 p.m. EDT (2321 GMT) Thursday at the opening of a 49-minute launch window.

Спойлер

Perched atop the rocket is the Inmarsat 5 F4 communications satellite, a spacecraft made by Boeing, ready to join Inmarsat's Global Xpress network providing broadband connectivity to airline passengers and maritime crews. The rocket will place the satellite into a high-altitude "supersynchronous" transfer orbit.

The timeline below outlines the launch sequence for the Falcon 9 flight with Inmarsat 5 F4. On this mission, SpaceX does not plan to attempt a recovery of the rocket's first stage booster due to the high performance required to place the heavy Inmarsat 5 F4 spacecraft into a high-altitude orbit.

The Falcon 9 does not carry landing legs or grid fins, which are not required for the expendable mission.

Data source: SpaceX

T-0:00:00: Liftoff


After the rocket's nine Merlin engines pass an automated health check, hold-down clamps will release the Falcon 9 booster for liftoff from pad 39A.

T+0:01:13: Mach 1


The Falcon 9 rocket reaches Mach 1, the speed of sound, as the nine Merlin 1D engines provide more than 1.5 million pounds of thrust.

T+0:01:17: Max Q


The Falcon 9 rocket reaches Max Q, the point of maximum aerodynamic pressure.

T+0:02:45: MECO


The Falcon 9's nine Merlin 1D engines shut down.

T+0:02:49: Stage 1 Separation


The Falcon 9's first stage separates from the second stage moments after MECO.

T+0:02:56: First Ignition of Second Stage


The second stage Merlin 1D vacuum engine ignites for a nearly 6-minute burn to put the rocket and Inmarsat 5 F4 into a preliminary parking orbit.

T+0:03:35: Fairing Jettison


The 5.2-meter (17.1-foot) diameter payload fairing jettisons once the Falcon 9 rocket ascends through the dense lower atmosphere. The 43-foot-tall fairing is made of two clamshell-like halves composed of carbon fiber with an aluminum honeycomb core.

T+0:08:38: SECO 1


The second stage of the Falcon 9 rocket shuts down after reaching a preliminary low-altitude orbit. The upper stage and Inmarsat 5 F4 begin a coast phase scheduled to last more than 18 minutes before the second stage Merlin vacuum engine reignites.

T+0:26:59: Second Ignition of Second Stage


The Falcon 9's second stage Merlin engine restarts to propel the Inmarsat 5 F4 communications satellite into a supersynchronous transfer orbit.

T+0:27:55: SECO 2


The Merlin engine shuts down after a short burn to put the Inmarsat 5 F4 satellite in the proper orbit for deployment.

T+0:31:48: Inmarsat 5 F4 Separation


The Inmarsat 5 F4 satellite separates from the Falcon 9 rocket in a supersynchronous transfer orbit. Due to a decision to burn the second stage nearly to depletion, there is some slight uncertainty on the orbital parameters based on the exact performance of the launcher.

[свернуть]

[tnt22]

Inmarsat‏Подлинная учетная запись @InmarsatGlobal 1 ч. назад

#I5F4 launches today from @NASA's historic LC-39A, home to Apollo 11's 1st manned mission to the Moon in July 1969! http://www.inmarsat.com/i5f4/ 

[Max Andriyahov]

Забавная опечатка Инмарсат:
http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=42846.0;attach=1426819;image

Proton 9

[tnt22]

Max Andriyahov пишет:
Забавная опечатка Инмарсат:
 http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=42846.0;attach=1426819;image

Proton 9

Ну, об этом см выше посты с #70 по #73 на этой же странице ещё вчера...

[tnt22]

Подняли

[tnt22]

https://www.nasaspaceflight.com/2017/05/expendable-falcon-9-inmarsat-5-f4-launch/