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Thread: F9: Intelsat 35e - 3 launches. 10 days, heaviest commsat yet

  1. #1
    Moderator Dr Mordrid's Avatar
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    Default F9: Intelsat 35e - 3 launches. 10 days, heaviest commsat yet

    Intelsat 35e is the heaviest GTO payload launched by SpaceX to date. No landing - the payload is too heavy. Falcon Heavy will get these in the future. SpaceX is negotiating contracts for commsats massing >7,000 kg.

    Core: 1037
    Static fire: June 29 (Thursday)
    Launch date: July 3
    Launch time: 1937 EDT (2337 UT)
    Stage recovery: NO

    Satellite: Intelsat-35e
    Destination: GTO
    Slot: 325.5ºE
    Satellite bus: Boeing-702MP EpicNG (HTS: high throughput satellite)
    Bands: C-band (43 spots), Ku-band (39 transponders)
    Propulsion: chemical
    Coverage: Americas, Africa and Europe
    Mass: 6,761.1 kg (14,905.6 lbs)

    Webcast link
    Last edited by Dr Mordrid; 3rd July 2017 at 11:41.
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    Webcast live after a weather delay
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    Moderator Dr Mordrid's Avatar
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    SpaceX ✔ @SpaceX
    Standing down today due to a violation of abort criteria, vehicle/payload in good health, next launch opportunity tomorrow, July 4th!
    8:55 PM - 3 Jul 2017
    Dr. Mordrid
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    Super MURCer cjolley's Avatar
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    Once they have an inventory of used booster this kind of launch will be so much more affordable.
    Be interesting to see how the lower cost will change what organizations want to place in orbit.
    Chuck
    秋音的爸爸

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    Moderator Dr Mordrid's Avatar
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    An insight into how much operators save was revealed by BulgariaSat's CEO: 40% of their initial $250 million budget.

    That'd pay for a few lattes at Starbucks.

    Confirmation of tonight's attempt. The previous scrubs appear to have been caused by ground side equipment.

    Intelsat‏ @INTELSAT 33s34 seconds ago
    Following a complete review of all criteria, @SpaceX has confirmed we are 'Go' for #launch tonight. Window opens at 7:37 pm EDT. Go IS-35e!
    http://www.spacex.com/webcast

    SpaceX is targeting launch of Intelsat 35e from Launch Complex 39A (LC-39A) at NASAs Kennedy Space Center in Florida on Wednesday, July 5. The launch window opens at 7:37 p.m. EDT, or 23:37 UTC.
    Last edited by Dr Mordrid; 5th July 2017 at 14:47.
    Dr. Mordrid
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    Weather: 90%

    SpaceX ✔ @SpaceX
    Targeting launch of @Intelsat 35e today at 7:38 p.m. EDT, 23:38 UTC. Webcast goes live ~10 minutes before liftoff -->http://www.spacex.com/webcast
    4:10 PM - 5 Jul 2017
    Dr. Mordrid
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    New webcast link

    Dr. Mordrid
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    Go for fueling
    Dr. Mordrid
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    5 min to LOX load.
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    T-18, count going smooth.
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    Webcast Funky music!!

    Talking heads soon
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    100% success launching their largest GEO satellite ever, with bigger ones in the pipeline.
    Dr. Mordrid
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    Holy over-performance, Batman!

    SpaceX ✔ @SpaceX
    Successful deployment of @Intelsat 35e to a Geostationary Transfer Orbit confirmed. pic.twitter.com/f4ZzLNnQZF

    Elon Musk ✔ @elonmusk
    Thanks @INTELSAT! Really proud of the rocket and SpaceX team today. Min apogee requirement was 28,000 km, Falcon 9 achieved 43,000 km.
    8:40 PM - 5 Jul 2017

    The extra apogee will make the plane change to equatorial much easier.
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    Super MURCer cjolley's Avatar
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    Which will allow the sat to keep itself positioned longer due to more retained fuel?
    Chuck
    秋音的爸爸

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    Quote Originally Posted by cjolley View Post
    Which will allow the sat to keep itself positioned longer due to more retained fuel?
    Absolutely! Years added to the mission so long as nothing breaks or it gets hit by debris. No doubt about it, Intelsat is a very happy customer.

    This still isn't SpaceX's record over-performance to a GTO apogee. That would be a lighter bird which was pushed to 90,000 km. It also pushed DSCOVR (Deep Space Climate Observatory ) to L1, a gravity well about 1,500,000 km out between Earth and the Sun
    Last edited by Dr Mordrid; 10th July 2017 at 01:18.
    Dr. Mordrid
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    I carry a gun because I can't throw a rock 1,250 fps

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