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Thread: Falcon 9: Inmarsat-5 F4 commsat (May 15, 1920 Eastern, 2320 GMT)

  1. #1
    Moderator Dr Mordrid's Avatar
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    Default Falcon 9: Inmarsat-5 F4 commsat (May 15, 1920 Eastern, 2320 GMT)

    SpaceX's launch rate is getting attention. At this rate they could launch over 20 times this year, while using up to 6 Flight Proven™ first stages.

    ~2 weeks after this launch will be the CRS-11 ISS resupply mission using a Flight Proven™ Cargo Dragon spacecraft, the former CRS-4 airframe, then ~2 weeks after that is BulgariaSat-1 on another Flight Proven™ first stage.

    https://www.universetoday.com/135524...ite-on-may-15/

    KENNEDY SPACE CENTER, FL – SpaceX is all set to continue their absolutely torrid launch pace in 2017 with a commercial High-Speed broadband satellite for Inmarsat on May 15 following Thursday’s successful completion of a critical static hot-fire test of the first stage. Watch our video below.

    The static fire test of all 9 Merlin 1 D first stage engines comes just 10 days after the last successful SpaceX Falcon 9 liftoff of the super secret NROL-76 payload for the National Reconnaissance Office, or NRO – as I reported here.
    >
    Blastoff of the Inmarsat-5 Flight 4 communications satellite for commercial broadband provider Inmarsat is slated for Monday evening, May 15 at 7:20 p.m. EDT (2320 GMT) from SpaceX’s seaside Launch Complex 39A on NASA’s Kennedy Space Center in Florida.
    >
    Launcher: Falcon 9 Expendable
    Launch site: KSC LC-39A
    Launch Date: Monday, May 15
    Launch Window: 1920-2020 Eastern (2320 GMT)
    Stage Landing: no (big satellite, insufficient reserves)

    Satellite Bus: BSS-702HP
    Beams: 89 Ka-band
    Propulsion: 4x Hall effect thrusters (ion propulsion)
    Reaction mass: Xenon
    Power: 15 kW
    Satellite Mass: 6,070 kg

    Static Fire still


    Last edited by Dr Mordrid; 13th May 2017 at 11:32.
    Dr. Mordrid
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    Moderator Dr Mordrid's Avatar
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    Default

    Rollout for tomorrow, weather is 80% go.



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    Dr. Mordrid
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    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  3. #3
    Moderator Dr Mordrid's Avatar
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    SpaceX ✔ @SpaceX
    ~60 minutes until Falcon 9 launch of Inmarsat-5 Flight 4. All systems and weather are go. Watch live → http://spacex.com/webcast
    Dr. Mordrid
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    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  4. #4
    Moderator Dr Mordrid's Avatar
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    Tetxbook, and they demonstrated accelerated LOX & helium loading - 35 min instead of 45 min. A new rocket iteration.

    Dr. Mordrid
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    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

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