Telstar 19 Vantage - Falcon 9 - Canaveral SLC-40 - 22.07.2018

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https://spaceflightnow.com/2018/07/21/record-setting-commercial-satellite-awaits-blastoff-from-cape-canaveral/

Record-setting commercial satellite awaits blastoff from Cape Canaveral
July 21, 2018 | Stephen Clark


The Telstar 19 VANTAGE communications satellite is tested at SSL's compact antenna test range. Credit: SSL

A huge U.S.-built, Canadian-owned communications satellite weighing 15,600 pounds, the heaviest spacecraft of its kind ever launched, is mounted to a Falcon 9 rocket for liftoff early Sunday from Cape Canaveral on a heavy-lifting mission that previously would have required SpaceX to throw away the launcher's first stage booster.

The Telstar 19 VANTAGE spacecraft is set to kick off a 15-year mission beaming broadband services across the Americas, and connecting airline passengers to WiFi over the North Atlantic Ocean.

Liftoff of the satellite atop a SpaceX Falcon 9 rocket from Cape Canaveral's Complex 40 launch pad is scheduled for a four-hour window opening at 1:50 a.m. EDT (0550 GMT) Sunday.

There is a 60 percent probability of favorable weather during the launch window. The chief concern is that afternoon and evening thunderstorms could linger late into the night, violating the thick cloud and cumulus cloud weather rules.

Спойлер

Sunday's mission will be the second flight using SpaceX's upgraded Falcon 9 Block 5 first stage, the latest generation in a series of step-by-step enhancements intended to boost the launcher's performance, while introducing changes to allow the booster to be easier to recover and reuse.

SpaceX launched the first Falcon 9 Block 5 rocket May 11 with Bangladesh's first communications satellite. Officials heralded the successful debut as pivotal in allowing SpaceX to reduce the time and money needed to turn around a recovered booster for another mission.


File photo of SpaceX's first Falcon 9 Block 5 rocket awaiting liftoff from pad 39A in May at NASA's Kennedy Space Center in Florida. Credit: Stephen Clark/Spaceflight Now

Elon Musk, SpaceX's founder and CEO, told reporters in May that a Block 5 first stage could be flown 10 times with little changes other than refueling, and up to 100 times with more significant refurbishment. At the time, Musk said SpaceX plans to re-fly a Falcon 9 first stage as quickly as 24 hours after its previous mission as soon as next year.

The enhancements include a beefed-up thermal protection system to better shield the rocket against re-entry heating. SpaceX introduced new black coatings on the interstage and landing legs, and the Falcon 9's first stage engine section, or octaweb, is bolted on to the vehicle in the new configuration, rather than welded to the first stage.

He said the nine Merlin engines on the Falcon 9 Block 5 rocket can generate 8 percent more thrust at sea level, up to around 190,000 pounds of thrust each. The Merlin engine on the Falcon 9's second stage also received a performance upgrade.

Since the first Falcon 9 Block 5 mission in May, SpaceX has launched three Falcon 9 flights using a mix of new Block 5 upper stages and reused Block 4 first stages. Sunday's mission will be the second employing all-Block 5 hardware.

The extra lift capability of the Falcon 9 Block 5 will allow the rocket to send the nearly 15,600-pound (7,075-kilogram) Telstar 19 VANTAGE satellite toward its operational perch in geostationary orbit more than 22,000 miles (nearly 36,000 kilometers) over the equator.

The flight plan calls for the Falcon 9's second stage to fire its engine twice, then deploy the Telstar 19 VANTAGE payload into an elliptical, egg-shaped transfer orbit with a low point a few hundred miles above Earth, and a high point ranging tens of thousands of miles in altitude.

Following the company's standard policy, SpaceX has not released the exact parameters of the orbit targeted on Sunday's mission. Other commercial launch providers typically publish such data in advance of their missions.

The Falcon 9 Block 5 will give the communications satellite, owned by Ottawa-based Telesat, a high-altitude lift while its first stage still retains enough propellant to return to a SpaceX drone ship parked in the Atlantic Ocean a few hundred miles east of Cape Canaveral.

Hauling such a heavy satellite toward a high-altitude geostationary transfer orbit would have required earlier versions of the Falcon 9 to devote all of their first stage propellants toward the launch, leaving insufficient leftover fuel for descent maneuvers.

The Falcon 9's first stage reignites a subset of its engines to target landings at sea or on land, then extends four landing legs while using its center engine to brake for touchdown. The extra engine restarts require extra fuel, eating into the mass the Falcon 9 can send into orbit.


The Telstar 19 VANTAGE satellite pictured during a cryo-vacuum test campaign. Credit: SSL

Sunday's launch will be SpaceX's 13th mission of the year, and the 58th flight of a Falcon 9 rocket since the first version of the launcher debuted in 2010. SpaceX will try for its 26th rocket landing Sunday.

Manufactured by SSL, formerly known as Space Systems/Loral, in Palo Alto, California, the Telstar 19 VANTAGE satellite is the first of two SSL-built, Telesat-owned telecom craft set for launch on Falcon 9 rockets this summer. The Telstar 18 VANTAGE satellite is scheduled for liftoff from Cape Canaveral on another Falcon 9 flight no earlier than Aug. 17.

Telstar 19 VANTAGE will become the heaviest commercial communications satellite ever launched, eclipsing a record set by the TerreStar 1 telecom spacecraft, which weighed 15,234 pounds (6,910 kilograms) when it rode an Ariane 5 rocket into orbit July 2009.

It is also set to be the heaviest satellite ever launched by SpaceX into geostationary transfer orbit, the drop-off for most commercial telecom payloads.

Telstar 19 VANTAGE will use its own hydrazine-fueled engine to circularize its orbit after separation from the Falcon 9 rocket, climbing into a circular geostationary perch nearly 22,300 miles over the equator at 63 degrees west longitude. In that position, Telstar 19 VANTAGE's orbital velocity will match the speed of Earth's rotation, allowing it to hover over a fixed geographic point.

Once the satellite unfurls its power-generating solar wings and communications antennas, Telesat will bring the newest member of its fleet into service by late August, a company spokesperson said.

Telstar 19 VANTAGE will operate in the same geostationary slot as the Telstar 14R satellite deployed in 2011, which encountered a failure in one of its solar arrays shortly after launch, diminishing its capability.

Telstar 19 VANTAGE carries Ku-band and Ka-band payloads, with coverage extending from Northern Canada to South America for broadband connectivity. The new satellite will also provide airborne Internet services for aircraft traveling on trans-Atlantic routes between North America and Europe.

"Telstar 19 VANTAGE is a state-of-the-art high-throughput satellite that will be co-located with our Telstar 14R satellite to expand our services over the Americas, the Caribbean and the North Atlantic," said Dan Goldberg, president and CEO of Telesat. "The satellite has a mix of Ka- and Ku-band capacity."

"The Ka-band capacity for South America is already under a 15-year contract with Hughes Network Systems and our long-standing customer Bell Canada has entered into a 15-year contract for substantially all of the satellite's Ka-band capacity over Northern Canada, which means that all of the satellite's Ka-band capacity serving that region is already under contract."

Goldberg said about a third of the new satellite's Ku-band communications capacity has been pre-sold.

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‪7076 кг

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Brady Kenniston‏ @TheFavoritist 7 мин. назад

Falcon is vertical for tonight's launch attempt for Telstar 19V!

[Georgea]

tnt22 пишет:
satellite weighing 15,600 pounds, the heaviest spacecraft of its kind ever launched

Не совсем понятно. Раньше Фалькон-9 тяжелые спутники на ГПО запускал в одноразовом варианте, без посадки. Неужели они настолько проапгрейдили Блок 5, что могут теперь сажать после рекордно тяжелого аппарата?

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Chris B - NSF‏ @NASASpaceflight 4 ч. назад

ARTICLE: SpaceX Falcon 9 set for a new record with Telstar 19V launch from SLC-40 -

https://www.nasaspaceflight.com/2018/07/spacex-falcon-9-telstar-19v-launch/ ...

- By William Graham

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Brady Kenniston‏ @TheFavoritist 2 ч. назад

Telstar 19V stands proud during remote camera setup at SLC-40 ahead of its 1:50am EST window opening.

Спойлер

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Updated: 07/22/2018 03:39 Spaceflight Now

The Falcon 9 that will launch the Telstar 19 VANTAGE communications satellite is in position for launch after being raised vertical at launch pad 40 this afternoon. Stormy conditions in the Cape Canaveral area have eased and SpaceX says there is a 60% chance of acceptable weather conditions during this evening's four hour launch window.

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https://spaceflightnow.com/2018/07/21/falcon-9-launch-timeline-with-telstar-19-vantage/

Falcon 9 launch timeline with Telstar 19 VANTAGE
July 21, 2018 | Stephen Clark

SpaceX's Falcon 9 rocket is set for liftoff from Cape Canaveral on Monday, heading due east over the Atlantic Ocean to deliver the Telstar 19 VANTAGE communications satellite into orbit around 32 minutes later.

The 229-foot-tall (70-meter) rocket is poised for launch from pad 40 at Cape Canaveral Air Force Station in Florida at 12:50 a.m. EDT (0450 GMT) Sunday at the opening of a four-hour launch window.

Perched atop the rocket is the Telstar 19 VANTAGE communications satellite, a spacecraft manufactured by SSL — formerly known as Space Systems/Loral — and owned by Ottawa-based Telesat.

Telstar 19 VANTAGE weighs 15,597 pounds (7,075 kilograms) with its propellant tanks fully loaded, making it the heaviest commercial communications satellite ever launched.

Спойлер

The U.S.-built, Canadian-owned satellite will beam Ka-band and Ku-band broadband services over the Americas from northern Canada to South America, with a additional coverage providing in-flight WiFi to airliners traveling the North Atlantic Ocean. Telstar 19 VANTAGE is designed for a 15-year mission, and it's the first of two SSL-built, Telesat-owned spacecraft launching on SpaceX Falcon 9 rockets this summer.

After deployment from the upper stage of the Falcon 9 rocket in an elliptical transfer orbit, Telstar 19 VANTAGE will use its on-board hydrazine-fueled engine to boost itself into a circular geostationary orbit more than 22,000 miles (nearly 36,000 kilometers) over the equator.

The Falcon 9 rocket launching Telstar 19 VANTAGE will fly in the upgraded "Block 5" configuration. It will be the second Falcon 9 Block 5 launch after the new rocket version debuted in May.

The timeline below outlines the launch sequence for the Falcon 9 flight with Telstar 19 VANTAGE.

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+0:01:06: 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+0:01:12: Max Q


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

T+0:02:30: MECO


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

T+0:02:33: Stage 1 Separation


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

T+0:02:34: First Ignition of Second Stage


The second stage Merlin 1D vacuum engine ignites for a six-minute burn to put the rocket and Telstar 19 VANTAGE into a preliminary parking orbit.

T+0:03:40: 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+0:06:12: Stage 1 Entry Burn


A subset of the first stage's Merlin 1D engines ignite for an entry burn to slow down for landing. A final landing burn will occur just before touchdown.

T+0:08:12: SECO 1


The second stage of the Falcon 9 rocket shuts down after reaching a preliminary low-altitude orbit. The upper stage and Telstar 19 VANTAGE begin a coast phase scheduled to last more than 18 minutes before the second stage Merlin vacuum engine reignites.

T+0:08:29: Stage 1 Landing


The Falcon 9 rocket's first stage booster touches down on SpaceX's drone ship in the Atlantic Ocean.

T+0:26:49: Second Ignition of Second Stage


The Falcon 9's second stage Merlin engine restarts to propel the Telstar 19 VANTAGE communications satellite into a geostationary transfer orbit.

T+0:27:39: SECO 2


The Merlin engine shuts down after a short burn to put the Telstar 19 VANTAGE satellite in the proper orbit for deployment.

T+0:32:40: Telstar 19 VANTAGE Separation


The Telstar 19 VANTAGE satellite separates from the Falcon 9 rocket in a geostationary transfer orbit.

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SpaceX‏Подлинная учетная запись @SpaceX 2 ч. назад

Falcon 9 and Telstar 19 VANTAGE went vertical this afternoon on Pad 40 in Florida. Weather is 60% favorable for the four-hour launch window, which opens Sunday, July 22 at 1:50 a.m. EDT, 5:50 UTC. http://spacex.com/webcast 

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Ken Kremer‏ @ken_kremer 2 ч. назад

Beautiful Sunset at #pad40 for @SpaceX middle of the night 150 AM ET launch of massive #Telstar19 - after remote camera setup and rain thunder deluge!!! @ken_kremer http://spaceupclose.com 

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07/22/2018 05:55 Stephen Clark

T-minus 2 hours, 55 minutes. Final countdown preparations are underway at Cape Canaveral as teams prepare a Falcon 9 rocket for liftoff at 1:50 a.m. EDT (0550 GMT).

Fueling of the Falcon 9 rocket will begin at 1:15 a.m. EDT (0515 GMT), three minutes after the SpaceX launch team will be electronically polled for their "go" to proceed into the final countdown.

Super-chilled, densified kerosene and liquid oxygen will be simultaneously pumped into the Falcon 9's first stage beginning at T-minus 35 minutes. Liquid oxygen will begin flowing into the second stage at T-minus 16 minutes.

In the final 10 minutes of the countdown, an automatic sequencer will command the Falcon 9's first stage engines to be chilled in preparation for ignition, the rocket's navigation computer will be configured for flight, its upper stage engine will run through a steering profile, and the launch pad's strongback will be retracted around 1.5 degrees away from the rocket.

[Apollo13]

Georgea пишет:

tnt22 пишет:
satellite weighing 15,600 pounds, the heaviest spacecraft of its kind ever launched

Не совсем понятно. Раньше Фалькон-9 тяжелые спутники на ГПО запускал в одноразовом варианте, без посадки. Неужели они настолько проапгрейдили Блок 5, что могут теперь сажать после рекордно тяжелого аппарата?

Скорее всего планируется ГПО-2100 и это специальный спутник с увеличенным запасом топлива. Это второй подобный пуск. Первый был Хиспасат.

http://interactive.satellitetoday.com/via/april-2017/shotwell-ambitious-targets-achievable-this-year/

In terms of trends, Shotwell sees a trend of a bifurcation in the market. She says there are a couple of satellite providers making their satellites bigger. "Some of that is basically putting a giant satellite on Falcon 9 with a lot of propellant, which would normally be a very heavy satellite, even potentially hard for Falcon 9 to throw. But when you put so much propellant on that satellite, they can get themselves to orbit even from a sub-synch. A couple of manufacturers are doing that ... [sending] an over 7-ton satellite on Falcon 9 to GTO. We are seeing a number of satellite manufacturers come around and do that just because of the value proposition presented by Falcon 9." But SpaceX is also seeing a lot of smaller satellites that are really a half bay Falcon 9 capability. "Spaceflight services, for one, is trying to match folks for us and fly on Falcon 9s. We are seeing a little bit more of that this year than we have in the past," she adds.

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Spaceflight Now‏ @SpaceflightNow 2 мин. назад

Less than 90 minutes until the opening of tonight's window for the Falcon 9 launch of the Telstar 19 VANTAGE communications satellite. We've seen the first sign of vapors at the launch pad in preparation for fueling: https://spaceflightnow.com/2018/07/21/live-coverage-spacex-prepares-to-launch-heavyweight-canadian-telecom-satellite/ ...

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Spaceflight Now‏ @SpaceflightNow 4 мин. назад

T-minus 60 minutes and counting. The countdown remains on track for liftoff of a SpaceX Falcon 9 rocket from Cape Canaveral at 1:50am EDT (0550 GMT) with the Telstar 19 VANTAGE communications satellite. Live coverage: https://spaceflightnow.com/2018/07/21/live-coverage-spacex-prepares-to-launch-heavyweight-canadian-telecom-satellite/ ...

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SpaceX‏Подлинная учетная запись @SpaceX 6 мин. назад

T-60 minutes until Falcon 9 launch of Telstar19 VANTAGE. Launch webcast will go live ~15 minutes before liftoff → http://spacex.com/webcast 

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Chris G - NSF‏ @ChrisG_NSF 1 мин. назад

And the poll is complete. We are GO for propellant loading! #SpaceX #Falcon9 #TelStar19V #Block5

Chris G - NSF‏ @ChrisG_NSF 2 мин. назад

T-38mins. The launch team is now verifying that Falcon 9 and the Ground Support Equipment are "GO" to begin prop load. #SpaceX #Falcon9 #TelStar19V #Block5