Intelsat 35e - Falcon 9 - Kennedy LC-39A - NET early-mid-July 23:35-00:35

[tnt22]

Детальный прогноз погоды L-1 на 2017-07-02
Falcon 9 L-1 Launch Forecast 2 July
 

[tnt22]

07/02/2017 00:32
SpaceX ground crews rolled the Falcon 9 rocket back inside its hangar at launch pad 39A early this morning to begin attaching the Intelsat 35e communications satellite, already encapsulated inside the launcher's fairing.

 Скрытый текст:

Made by Boeing, the spacecraft will weigh 14,905 pounds (6,761 kilograms) fully fueled at liftoff, according to Intelsat. That makes it one of the heaviest commercial communications satellites ever launched, and the heaviest payload SpaceX has ever sent toward geostationary orbit, the high-altitude perch over the equator favored by most broadcasting and data relay spacecraft.

Launch preparations are running on schedule for liftoff at 7:36 p.m. EDT (2336 GMT), but the timeline is tight to complete the attachment of the Intelsat 35e satellite to the Falcon 9 rocket, finish prelaunch testing, and roll the booster back to pad 39A.

The official launch weather forecast continues to show a 60 percent chance conditions could prohibit liftoff Sunday evening due to storms and clouds. Conditions are forecast to improve Monday, with a 40 percent chance of violating launch weather rules.

[Страшный Боковой Ветер]

tnt22 пишет:
6,761 kilograms

Новый рекорд на ГПО для SpaceX

tnt22 пишет:
but the timeline is tight to complete the attachment of the Intelsat 35e satellite to the Falcon 9 rocket, finish prelaunch testing, and roll the booster back to pad 39A.

А вот еще один потенциальный рекорд - минимальное время для установки ПН

[FarEcho]

Зловредный пишет:
А почему у них потом более чем месячный перерыв в планируемых запусках?

Возможно это связано с монтажем на LC-39A системы для одновременной заправки всех ступеней Falcon Heavy. Некоторое время назад в интерью Маск озвучивал, что им пришлось прерваться с этой работой, чтобы использовать LC-39A для первоочередных запусков, пока SLC-40 не вернулась в строй. И что для завершения этого монтажа им требуется примерно 2 месяца, в течении которых LC-39A использоваться не может. Тут как раз примерно такой перерыв в расписании и получается.

И, кстати, для первого после перерыва старта с Канаверал (CRS-12 10 августа) в расписании не указано, с какой площадки он будет производится.

[drzerg]

перерыв из за range. из флориды никто не будет пускать ничего около месяца. е только спейсы. 

[tnt22]

Поднимают
 

[tnt22]

[tnt22]

Поставили
 

[tnt22]

Robin Seemangal‏Подлинная учетная запись @nova_road 8 мин. назад

Good morning from #SpaceX Pad 39A! The expendable (bummer) Falcon 9 rocket is going vertical for today's 7:36 PM ET Intelsat-35e launch

 Скрытый текст:

[tnt22]

Spaceflight Now‏ @SpaceflightNow 20 мин. назад

SpaceX's Falcon 9 rocket is currently being lifted vertical at pad 39A for liftoff tonight.

[tnt22]

Spaceflight Now‏ @SpaceflightNow 2 мин. назад

Falcon 9 is now standing at pad 39A ahead of launch at 7:36pm EDT (2336 GMT) with Intelsat communications satellite. https://spaceflightnow.com/2017/07/02/falcon-9-intelsat-35e-mission-status-center/ ...

[tnt22]

07/02/2017 16:09
SpaceX's Falcon 9 rocket was hydraulically hoisted upright again at pad 39A this morning, getting in position for liftoff at 7:36 p.m. EDT (2336 GMT).

The 229-foot-tall (70-meter) rocket was vertical on its launch mount by 8:50 a.m. EDT (1250 GMT) after a predawn rollout from SpaceX's hangar a quarter-mile away.

The Falcon 9 is not flying with landing legs or aerodynamic grid fins on this launch because the Intelsat 35e communications satellite is too heavy to permit recovery of the launcher's first stage

[tnt22]

Прогноз погоды на 2017-07-02
24HR Planning Forecast 02 Jul 0800L
 

[tnt22]

Chris B - NSF‏ @NASASpaceflight 13 мин. назад

SpaceX photo of the Falcon 9 that's set to launch Intelsat 35e later today. No legs and fins looks a bit strange these days...

[tnt22]

SpaceX‏Подлинная учетная запись @SpaceX 1 ч. назад

Falcon 9 and @Intelsat 35e vertical on Pad 39A. Weather is 40% favorable for tonight's launch window which opens at 7:36 p.m. EDT, 23:36 UTC

[tnt22]

https://spaceflightnow.com/2017/07/02/photos-expendable-falcon-9-launcher-raised-vertical-at-pad-39a/

Photos: Expendable Falcon 9 launcher raised vertical at pad 39A
July 2, 2017 Stephen Clark

SpaceX's next Falcon 9 rocket was hydraulically hoisted vertical Sunday morning at launch pad 39A at NASA's Kennedy Space Center, less than 12 hours before a scheduled blastoff with the Intelsat 35e communications satellite.

 Скрытый текст:

The 229-foot-tall (70-meter) rocket is not fitted with the landing legs or aerodynamic steering fins needed for recovery because the 14,905-pound (6,761-kilogram) Boeing-built spacecraft mounted atop the Falcon 9 is too heavy to permit a controlled descent of the first stage.

SpaceX is preparing for its second launch in a little more than nine days at pad 39A, a turnaround that will set a record for the shortest time between missions from the historic launch complex, assuming the Falcon 9 lifts off in the next few days.

Sunday's launch, scheduled for 7:36 p.m. EDT (2336 GMT), will be the 10th Falcon 9 mission this year, and the eighth from Kennedy Space Center in Florida.

Follow our live coverage of the countdown and launch.


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now


Credit: Stephen Clark/Spaceflight Now

[tnt22]

https://spaceflightnow.com/2017/07/02/falcon-9-launch-timeline-with-intelsat-35e/

Falcon 9 launch timeline with Intelsat 35e
July 2, 2017 Stephen Clark

SpaceX's Falcon 9 rocket is set for liftoff from Cape Canaveral on Sunday evening, heading due east over the Atlantic Ocean to deliver the Intelsat 35e 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 7:36 p.m. EDT (2336 GMT) Sunday at the opening of a 58-minute launch window.

 Скрытый текст:

Perched atop the rocket is the Intelsat 35e communications satellite, a spacecraft made by Boeing in El Segundo, California, ready to beam video, broadband Internet and data across the Americas, the Caribbean, the Atlantic Ocean and Europe.

The 14,905-pound (6,761-kilogram) spacecraft is the heaviest geostationary satellite ever launched by SpaceX, requiring all of the Falcon 9's fuel capacity to reach an elliptical transfer orbit high above Earth. The heavy payload will prevent the Falcon 9's first stage from attempting a landing.

The timeline below outlines the launch sequence for the Falcon 9 flight with Intelsat 35e, SpaceX's 10th mission of the year, and the 38th Falcon 9 launch since the first version of the rocket debuted in June 2010.

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+0:01:10: Mach 1


The Falcon 9 rocket reaches Mach 1, the speed of sound, as the nine Merlin 1D engines provide more than 1.7 million pounds of thrust.

T+0:01:18: Max Q


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

T+0:02:42: MECO


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

T+0:02:46: Stage 1 Separation


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

T+0:02:53: First Ignition of Second Stage


The second stage Merlin 1D vacuum engine ignites for a nearly 6-minute burn to put the rocket and Intelsat 35e into a preliminary parking orbit.

T+0:03:39: 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+0:08:37: SECO 1


The second stage of the Falcon 9 rocket shuts down after reaching a preliminary low-altitude orbit. The upper stage and Intelsat 35e begin a coast phase scheduled to last nearly 18 minutes before the second stage Merlin vacuum engine reignites.

T+0:26:18: Second Ignition of Second Stage


The Falcon 9's second stage Merlin engine restarts to propel the Intelsat 35e communications satellite into a geostationary transfer orbit.

T+0:27:10 SECO 2


The Merlin engine shuts down after a short burn to put the Intelsat 35e satellite in the proper orbit for deployment.

T+0:32:01: Intelsat 35e Separation


The Intelsat 35e satellite separates from the Falcon 9 rocket in a geostationary transfer orbit.

[Pirat5]

Вот интересный сайт, который на самом деле следы ударов молнии в реальном времени:
https://www.lightningmaps.org/?lang=en#y=28.455;x=-79.8082;z=8;t=3;m=sat;r=0;s=0;o=0;b= ; п = 0, г = 2; дл = 2; DC = 0 ;

https://www.reddit.com/r/spacex/comments/6kt2re/welcome_to_the_rspacex_intelsat_35e_official/

[tnt22]

07/02/2017 22:48
Everything is on track for launch this evening, according to Ken Lee, Intelsat's senior vice president of space systems.

There are no technical issues in work at the moment, and weather is the only factor that could prevent liftoff at 7:36 p.m. EDT (2336 GMT), Lee told Spaceflight Now a few minutes ago.

He said launch preparations over the last few days were "very intense" as SpaceX raced to ready for another Falcon 9 flight from pad 39A in Florida just nine days after its last launch there.

 Скрытый текст:

The Falcon 9 rocket conducted a static fire test Thursday evening at pad 39A, less than 72 hours before the opening of Sunday's launch window. Ground crews rolled back the Falcon 9 to its hangar Friday afternoon and attached the Intelsat 35e satellite to the rocket in time to return to the pad in the predawn hours this morning.

"We had to add additional resources to try to turn around the campaigns in such a short time," Lee said in an interview at Cape Canaveral this afternoon. "More manpower -- a lot of pressure -- but as usual our team is mission-oriented, so when they see a target they're going to do the best they can do meet that date.

"They've been working almost around-the-clock, and we brought in additional engineers to make sure that we did the work that we needed to do without any shortcuts."

The Air Force-run Eastern Range is unavailable for launches for around two weeks after the Fourth of July holiday, so SpaceX and Intelsat were eager to get the Falcon 9 off the ground.

The 14,905-pound (6,761-kilogram) Intelsat 35e communications satellite, built by Boeing, is the heaviest spacecraft ever launched by SpaceX toward a perch in geostationary orbit, a circular loop more than 22,000 miles (nearly 36,000 kilometers) above Earth's equator commonly used by broadcast and data relay stations.

At that altitude, orbital mechanics require a satellite to fly around Earth at the same speed it rotates, allowing a spacecraft to hover over a fixed geographic location, an ideal situation for communications applications.

The heavy weight of Intelsat 35e effectively "maxes out" the Falcon 9's capability to lift a payload going to that type of orbit, Lee said.

SpaceX has budgeted all of the Falcon 9's kerosene and liquid oxygen propellant to send Intelsat 35e into as high of an orbit as possible. That means the first stage will not return to land on a barge at sea, and the upper stage's single Merlin engine is programmed to fire as long as possible, instead of aiming for a specific predetermined altitude.

The mission is designed to leave as little leftover propellant as possible in the second stage, called a "minimum residual shutdown."

"There is a minimum orbital target that we are shooting for, and if there is excess fuel on the rocket, then we're going to continue to burn until we deplete all the fuel," Lee said.

Lee said there is a range of possible orbits the Falcon 9 could deploy Intelsat 35e into, but the minimum expected peak altitude, or apogee, when the satellite separates from the upper stage is 19,405 miles (31,230 kilometers), according to Lee.

The low point, or perigee, of the transfer orbit is expected to be around 155 miles (250 kilometers), and Intelsat 35e's path around Earth will be tilted 26 degrees to the equator.

If the launcher releases the Intelsat 35e satellite in that orbit, the spacecraft will still have enough on-board propellant for its planned 15-year operational life.

"Everything else will be gravy in terms of the service life," Lee said, referring to the benefit of going into a higher initial orbit.

The Falcon 9 could deliver extra performance tonight, and the range of the satellite's initial apogee altitude runs above 22,000 miles, a regime called "supersynchronous" transfer orbit, Lee said.

"The range we are hoping for tonight, we have a minimum number, and we have a maximum number, which would be a slightly supersynchronous (transfer) orbit," Lee said.

Intelsat 35e's own engine will fire multiple times in weeks after launch to circularize the satellite's orbit a geostationary altitude. Lee said the spacecraft should ever service in the second half of August, beaming signals across the Americas, the Caribbean, Latin America, Europe and Africa for wireless network providers and television broadcasters.

[tnt22]

Spaceflight Now‏ @SpaceflightNow 9 мин. назад

Officials say there are no technical issues that could prevent Falcon 9 launch from Florida at 7:36pm EDT (2336 GMT) https://spaceflightnow.com/2017/07/02/falcon-9-intelsat-35e-mission-status-center/ ...