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Thread: Falcon 9: SES-12 commsat

  1. #1
    Moderator Dr Mordrid's Avatar
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    Default Falcon 9: SES-12 commsat

    Another regular customer,

    Payload: SES-12 commsat
    Customer: SES S.A., Luxembourg

    Launch date: May 24 (may slip)
    Window: 0029-0127 EDT (0429-0527 UTC)
    Core: B1040.2 (X-37B OTV-5)
    Pad: KSC LC-40
    Stage landing: expended (Block 4)

    Satellite bus: Airbus Eurostar-3000EOR
    Orbit: Geostationary transfer orbit
    GEO position: 95° East
    Transponders: 54 Ku band (S. Asia, Asia-Pacific)
    Power: 19kw
    Propulsion: OKB Fakel SPT140D electric (Russian)
    Mass: 5,300kg
    Dr. Mordrid
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    Moderator Dr Mordrid's Avatar
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    Slips to May 31, 0029 EDT

    @emrekelly (Florida Today)
    Attached: Launch Hazard Area for May 31 SpaceX #SES12 mission from LC 40. Roughly 1.5-hour window for Block 4 #Falcon9 opens at 0029 ET (0429 UTC). Expendable, so no landing attempt.

    https://twitter.com/emrekelly/status/999347104249196544

    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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    SpaceX ✔ @SpaceX
    Static fire test of Falcon 9 complete—targeting May 31 launch of SES-12 from Pad 40 in Florida.
    9:48 PM - May 24, 2018
    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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    No surprise at all given subtropical storm Alberto is hitting Western Florida.

    https://twitter.com/SpaceX/status/1001177877654667264

    SpaceX @SpaceX
    Now targeting June 1 launch of SES-12 from Pad 40; team using additional time to perform pre-launch vehicle checks, also closely watching weather conditions at the Cape.
    Dr. Mordrid
    ----------------------------
    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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    Moderator Dr Mordrid's Avatar
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    This launcher is a stripped-down Block 4 first stage mated to a beastly Block 5 second stage (205,000 lbf MVacD engine.) Higher thrust + a longer insertion burn should leave the 5,300 kg SES-12 satellite with sufficient residual fuel for 7 extra years of mission life.

    Weather 70% for June 4

    Weather 80% for June 5 (backup day)
    Last edited by Dr Mordrid; 1st June 2018 at 11:34.
    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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    From the SES presser,

    Mass: 5,383.85 kg.
    Target orbit: 294 x 58,000km

    Falcon 9's increased performance will get it to GEO 20 days sooner, and extend SES-12's life from the usual 15 years to 22 years.

    ======

    SpaceX ✔ @SpaceX
    Falcon 9 and SES-12 went vertical this morning on Pad 40 in Florida. Weather is 70% favorable for the four-hour launch window which opens on June 4 at 12:29 a.m. EDT, or 4:29 UTC. http://spacex.com/webcast
    1:29 PM - Jun 3, 2018

    Last edited by Dr Mordrid; 3rd June 2018 at 12:41.
    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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    The webcast says T-0 is now 0045 Eastern
    Dr. Mordrid
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    I carry a gun because I can't throw a rock 1,250 fps

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    Peter B. de Selding @pbdes
    Owner @SES_Satellites confirms signal acquisition for SES-12. Successful Falcon 9 mission for @SpaceX. Sat will be moved to 95degE and will deploy its eight antennas.
    1:33 AM - Jun 4, 2018

    https://twitter.com/pbdes/status/1003510125838159872
    Last edited by Dr Mordrid; 3rd June 2018 at 22:47.
    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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    SES CTO: “It’s such a powerful upper stage," Halliwell said. "That engine is a monster."

    Mass: 5,383.85 kg.
    Target orbit: 294 x 58,000km

    Yup.

    For those counting, this is 538 Merlin 1Ds flown without a hitch.

    Tom Mueller and his gang of pirates did a helluva job, and the same crew is doing Raptor.
    Last edited by Dr Mordrid; 4th June 2018 at 02:23.
    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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    Fairing retrieval

    Julia @julia_bergeron
    It looks like GO Pursuit bagged her catch overnight and is heading back to Port Canaveral. She was going 8.4 kn at 7:15 am this morning heading west. #SpaceXFleet
    8:43 AM - Jun 4, 2018 · Titusville, FL

    https://twitter.com/julia_bergeron/s...18232975220737
    Dr. Mordrid
    ----------------------------
    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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