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SpaceX F9 - Amos 17 - SLC-40

Discussion in 'SpaceX' started by Grendal, Jul 22, 2019.

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  1. Grendal

    Grendal SpaceX Moderator

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    #1 Grendal, Jul 22, 2019
    Last edited: Aug 4, 2019
    Launch Date: August 6
    Launch Window: Approx. 2252 GMT (6:52-8:20 p.m. EDT)
    Launch site: SLC-40 Cape Canaveral
    Booster Recovery: Expended - due to weight and orbit
    Booster Type: B1047.3 - Reused
    Mass: 6500 kg
    Orbit: GTO

    A SpaceX Falcon 9 rocket will launch the Amos 17 communications satellite. Built by Boeing and owned by Spacecom Ltd. of Israel, Amos 17 will provide high-throughput broadband connectivity and other communications services over Africa, the Middle East and Europe.

    Amos 17 is the discounted, if not free, launch from SpaceX for the Amos 6 pre-launch failure that destroyed the satellite.

    AMOS 17
    AMOS-17 satellite : Optimal coverage of Sub-Saharan Africa in C-band HTS, K-band and Ka-band
     
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  2. Grendal

    Grendal SpaceX Moderator

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  3. e-FTW

    e-FTW New electron smell

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    Look exactly like a rocket on it’s way to a third launch should!
     
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  4. e-FTW

    e-FTW New electron smell

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    Except a tear must be shed for its impending sacrifice to the gods of physics and orbital mechanics. It will be expended on this launch.
     
  5. Grendal

    Grendal SpaceX Moderator

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    It's likely that SpaceX will do another super push for the GTO and speed up the satellite trajectory as it has done a few times in the past. This shortens the time by a number of months to get into GEO position and extends the life of the satellite by years because of the fuel savings.

    This is one of the few remaining Block 4.9 boosters without the upgraded COPVs. So that is possibly another reason that SpaceX is willing to ditch old B1047.
     
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  6. bxr140

    bxr140 Active Member

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    While supersychronous transfer orbit does extend the satellite life over a Hohmann GTO because it essentially puts more energy into the satellite's orbit, it only decreases time-to-GEO if the satellite is using electric propulsion for initial orbit raising.

    Near as I can tell Amos-17 has a traditional chemical propulsion system for orbit raising, but...I can't say that for certain. Have you found any content to the contrary?
     
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  7. Grendal

    Grendal SpaceX Moderator

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    Nope. Just guesswork based on things they've done in the past and repeating stuff from the more informed people on Facebook SpaceX. The guess is that SpaceX will go for a supersychronous transfer orbit.
     
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  8. Grendal

    Grendal SpaceX Moderator

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  9. Grendal

    Grendal SpaceX Moderator

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    Going to be delayed. B1047 has a mildly bad valve. A second static fire is pending.

    SpaceX on Twitter
     
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  10. MyJoule

    MyJoule Member

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  11. e-FTW

    e-FTW New electron smell

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    Pending range availability...
     
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  12. bmah

    bmah Moderator, Model S/X, California Forums

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    What does that mean? Like they're not sure if they can get the airspace or not?

    Bruce.
     
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  13. Grendal

    Grendal SpaceX Moderator

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    Good question. There is a ULA Atlas V with a Dept of Defense payload that is supposed to be launching on that date too. SpaceX should have the priority but with a DOD payload they could get pushed out of their launch date/window.
     
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  14. Grendal

    Grendal SpaceX Moderator

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    Not looking good on weather:
    [​IMG]
     
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  15. Mike1080i

    Mike1080i Member

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    #15 Mike1080i, Aug 4, 2019
    Last edited: Aug 4, 2019
    I think the Atlas is scheduled for 5:44am on 8th. The range upgrades should support a faster turnaround time, but the ~36 hour range reconfiguration time between them may be the concern.
     
  16. Grendal

    Grendal SpaceX Moderator

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    Webcast for the launch (if there is a weather break).
     
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  17. Grendal

    Grendal SpaceX Moderator

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    Music and fueling happening. So maybe....
     
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  18. ecarfan

    ecarfan Well-Known Member

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    Perfect launch! Everything nominal so far. But kind of boring with no booster recovery... :cool:
     
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  19. Cosmacelf

    Cosmacelf Well-Known Member

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    Ho hum. Another normal, boring launch :)
     
  20. favo

    favo P3D+ owner

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