Kacific-1 (JCSat-18) - Falcon 9-078 - CCAFS SLC-40 – 17.12.2019, 00:10 UTC

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Чебурашка написал:
2-ое включение верхней ступени - 48 секунд. Надо сравнить с предыдущими случаеми.

Telstar 18 V - 43 с.

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https://spaceflightnow.com/2019/12/16/falcon-9-launch-timeline-with-jcsat-8-kacific-1/

Falcon 9 launch timeline with JCSAT 8/Kacific 1
December 16, 2019 | Stephen Clark

SpaceX's Falcon 9 rocket is set for liftoff fr om Cape Canaveral on Monday, heading due east over the Atlantic Ocean to deliver the JCSAT 18/Kacific 1 communications satellite into orbit around 33 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 7:10 p.m. EST Monday (0010 GMT Tuesday) at the opening of an 88-minute launch window.

Perched atop the rocket is the JCSAT 18/Kacific 1 communications satellite, a spacecraft manufactured by Boeing in El Segundo, California, and jointly owned by Sky Perfect JSAT Corp. of Tokyo and Kacific Broadband Satellites of Singapore.

The JCSAT 18/Kacific 1 satellite weighs 15,335 pounds (6,956 kilograms) with its propellant tanks fully loaded, making it one of the heaviest satellites ever launched by SpaceX.

After deployment from the upper stage of the Falcon 9 rocket in an elliptical transfer orbit, the JCSAT 18/Kacific 1 spacecraft 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 JCSAT 18/Kacific 1 spacecraft will park itself in geostationary orbit at 150 degrees east longitude, wh ere it will operate over a fixed geographic position during its 15-year mission.

Sky Perfect JSAT will use its Ku-band capacity on the satellite to support mobile and broadband services over Japan, the Asia-Pacific and far eastern Russia. Kacific's portion of the satellite's Ka-band payload will provide Internet service to under-served populations across Southeast Asia and the Pacific islands.

The Falcon 9 first stage booster set to loft the JCSAT 18/Kacific 1 payload has flown twice before on a pair of space station resupply missions earlier this year. The timeline below outlines the launch sequence for the Falcon 9 flight with JCSAT 18/Kacific 1.

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+0:01:00: 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+0:01:13: Max Q


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

T+0:02:32: MECO


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

T+0:02:35: Stage 1 Separation


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

T+0:02:42: First Ignition of Second Stage


The second stage Merlin 1D vacuum engine ignites for a five-and-a-half-minute burn to put the rocket and JCSAT 18/Kacific 1 spacecraft 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+0:06:14: 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+0:08:11: SECO 1


The second stage of the Falcon 9 rocket shuts down after reaching a preliminary low-altitude orbit. The upper stage and JCSAT 18/Kacific 1 begin a coast phase scheduled to last more than 19 minutes before the second stage Merlin vacuum engine reignites.

T+0:08:38: Stage 1 Landing


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

T+0:27:21: Second Ignition of Second Stage


The Falcon 9's second stage Merlin engine restarts to propel the JCSAT 18/Kacific 1 communications satellite into an elliptical transfer orbit.

T+0:28:09: SECO 2


The Merlin engine shuts down after a short burn to put the JCSAT 18/Kacific 1 satellite in the proper elliptical orbit for deployment.

T+0:33:10: JCSAT 18/Kacific 1 Separation


The JCSAT 18/Kacific 1 satellite separates from the Falcon 9 rocket into an elliptical transfer orbit, on the way to a perch in geostationary orbit.

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12/16/2019 21:29 Stephen Clark

SpaceX's Falcon 9 rocket has been raised vertical at Cape Canaveral's Complex 40 launch pad in preparation for liftoff tonight during a launch window that opens at 7:10 p.m. EST (0010 GMT).

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SpaceX‏ @SpaceX 52 мин. назад

Falcon 9 and JCSAT-18/Kacific1 are vertical on Pad 40 in Florida. Weather is 90% favorable for tonight's launch window, which opens at 7:10 p.m. and closes at 8:38 p.m. EST → http://spacex.com/webcast

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 Brady Kenniston‏ @TheFavoritist 3 мин. назад

Falcon 9 & JCSAT-18/Kacific1 are vertical ahead of their 7:10pm - 8:38pm EST launch window! Get ready for these 9 merlins to light up the night!

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12/16/2019 23:41 Stephen Clark

T-minus 3 hours, 30 minutes. Final countdown preparations are underway at the Kennedy Space Center as teams prepare a Falcon 9 rocket for liftoff at 7:10 p.m. EST (0010 GMT).

Fueling of the Falcon 9 rocket is expected to begin at 6:35 p.m. EST (2335 GMT), three minutes after a planned readiness check by SpaceX's launch conductor to verify the launch vehicle, payload and weather are "go" for liftoff.

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.

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12/17/2019 00:00 Stephen Clark

Christian Patouraux, founder and CEO of Kacific, says tonight's countdown remain on track for the opening of the launch window at 7:10 p.m. EST (0010 GMT).

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 Nathan Barker‏ @NASA_Nerd 6 мин. назад

#Space Falcon 9 Booster 1056.3.

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 Trevor Mahlmann‏ @TrevorMahlmann 5 мин. назад

T-4 hours to launch of JCSAT-18 / KACIFIC1 payload. Should be a gorgeous night launch, first one in awhile! Here's one of my favorites from remote camera setup this afternoon!

//: https://www.tmahlmann.com/photos/Rockets/SpaceX/JCSAT-18-KACIFIC1/i-PrLdTq9/ ...

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 Boeing Space‏ @BoeingSpace 7 мин. назад

Ready for launch! The JCSAT-18/Kacific1 satellite we built for SKY Perfect JSAT and @Kacific is headed to orbit aboard a @SpaceX Falcon 9 rocket today at 7:10 p.m. ET.

See the launch: http://bit.ly/2thdzDt

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12/17/2019 01:28 Stephen Clark

T-minus 1 hour, 42 minutes. All weather parameters are currently observed "go" for launch of SpaceX's Falcon 9 rocket tonight. The launch window opens at 7:10 p.m. EST (0010 GMT), and the countdown is on track for liftoff at that time with the JCSAT 18/Kacific 1 communications satellite.

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 SpaceXFleet Updates‏ @SpaceXFleet 29 мин. назад

Tracking indicates that Tug Hawk has released OCISLY from her tow and is moving away to a safe distance. T - 2 hours!

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 SpaceXFleet Updates‏ @SpaceXFleet 3 мин. назад

Recovery technicians have just finished preparing Of Course I Still Love You for the landing! GO Quest is now retreating to a safe distance to observe the attempt. T - 75 minutes!

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12/17/2019 02:12 Stephen Clark

T-minus 58 minutes. The countdown has entered the final hour before the scheduled liftoff of a SpaceX Falcon 9 rocket at 7:10 p.m. EST (0010 GMT).

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12/17/2019 02:27 Stephen Clark

T-minus 43 minutes. Here are some statistics on today's launch:

[/li]
• 77th launch of a Falcon 9 rocket since 2010
  
• 85th launch of Falcon rocket family since 2006
  
• 3rd launch of Falcon 9 booster B1056
  
• 62nd Falcon 9 launch from Cape Canaveral
  
• 47th Falcon 9 launch from pad 40
  
• 3rd SpaceX launch for Sky Perfect JSAT
  
• 1st SpaceX launch for Kacific
  
• 10th Boeing-built satellite launched by SpaceX
  
• 11th Falcon 9 launch of 2019
  
• 13th launch by SpaceX in 2019
  
• 15th orbital launch based out of Cape Canaveral in 2019
  

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12/17/2019 02:32 Stephen Clark

SpaceX will attempt to recover the first stage and both halves of the Falcon 9's fairing downrange in the Atlantic Ocean. This marks the first time SpaceX will try to catch both halves of a Falcon 9 nose cone using two different ships fitted with giant nets east of Cape Canaveral.

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12/17/2019 02:40 Stephen Clark

T-minus 30 minutes. Filling of the Falcon 9 rocket with kerosene and liquid oxygen appears to be underway at Cape Canaveral. This will mark SpaceX's 13th launch of the year, and the 77th flight of a Falcon 9 rocket since June 2010.

The liquid oxygen flowing into the first stage is chilled to near minus 340 degrees Fahrenheit (minus 206 degrees Celsius).

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 Chris B - NSF‏ @NASASpaceflight 1 мин. назад

Falcon 9 is venting.

https://www.youtube.com/watch?v=CUNl02W_FUU ...

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12/17/2019 02:49 Stephen Clark

The 15,335-pound (6,956-kilogram) JCSAT 18/Kacific 1 telecom satellite — built by Boeing and destined to serve the Asia-Pacific with new broadband capacity — has switched to internal battery power in preparation for launch atop SpaceX's Falcon 9 rocket.

Here's a picture of the spacecraft during manufacturing.[