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D10 Satellite TECH THREAD - HD Testing Schedule / Press Releases / Location

Discussion in 'DIRECTV General Discussion' started by Sixto, Jul 6, 2007.

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  1. Sep 6, 2007 #1821 of 2718
    Sixto

    Sixto Well-Known Member

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    Interesting.

    I wonder if it's in the "final geo. orbit" but not yet at the 102.775º W.L. orbital location.

    The actual question is whether D10 is at the final 102.775º W.L. orbital location. From the posts above, it appears that it may not be.
     
  2. Sep 6, 2007 #1822 of 2718
    Ken984

    Ken984 Active Member

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    Bossier...
    Well not to take sides, but my money is on NORAD being correct that its not at 102.775. According to NORAD it is currently at 102.5606° W. Unless a new tle comes out showing differently I will stick behind that statement.
     
  3. Sep 6, 2007 #1823 of 2718
    oakwcj

    oakwcj Lower Echelon

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    Mr. Mercer is just a PR guy. I'll go with NORAD too.
     
  4. Sep 6, 2007 #1824 of 2718
    Smthkd

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    Mr. Mercer has been a great source of information for us in the past and he's more than a PR guy! Although I realize Norad has solid info, I also realize that a top exec. inside has more info about whats going on too!
     
  5. Sep 6, 2007 #1825 of 2718
    Smuuth

    Smuuth Well-Known Member

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    My understanding is that if it is moving east (as contrasted to appearing stationary), then it is actually in a lower altitude orbit than where it would be if geostationary. To move west, it will have to be put in a higher altitude orbit, and thus slow down relative to the earth. Of course, I may be totally incorrect, and if so, I apologize to those more knowledgeable. :)
     
  6. Sep 6, 2007 #1826 of 2718
    syphix

    syphix Hall Of Fame

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    No new TLE's, so there might be a lot going on...and we just won't know it until tomorrow morning (or whenever the next TLE comes out).
     
  7. Sep 6, 2007 #1827 of 2718
    GutBomb

    GutBomb Godfather

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    Hi up execs are great for getting big picture information, but not technical details. I imagine he 's probably just underinformed.
     
  8. Sep 6, 2007 #1828 of 2718
    jaycrow

    jaycrow Cool Member

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    This is an uninformed question, but isn't it possible that D10 could start providing a signal before it reached its final orbital location? I don't see why they can't fully test and deliver the satellite from whatever location it's at, especially considering it's within a quarter degree of said location. As long as our dishes are pointed at it, and our receivers are told where to look, it seems they could theoretically make it live as soon as they're ready.

    What am I missing?

    On a side note, I really enjoy these forums. You guys are a wealth of knowledge. Keep up the good work!
     
  9. Sep 6, 2007 #1829 of 2718
    Smthkd

    Smthkd Icon

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    They could only if they had permission to by the FCC, but they don't! D* only have approval to test at 102.6 and transmit @ 102.775 (which is temporary unless they get permission to be there permenantly)!
     
  10. Sep 6, 2007 #1830 of 2718
    purtman

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    FCC won't allow transmission until it gets to 102.775.
     
  11. Sep 6, 2007 #1831 of 2718
    Sixto

    Sixto Well-Known Member

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    Question that's been bugging me for a while ...

    Why couldn't D* just put D10 at 102.775º W.L. orbital location and do all testing at that location?

    Why did they need to test at one location and then move to the final production location?
     
  12. Sep 6, 2007 #1832 of 2718
    Ken984

    Ken984 Active Member

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    Bossier...
    That location is too close to Spaceway1's spot and if there were problems it could have interrupted service, at least thats what i think. Normally testing slots are nowhere near final locations.
     
  13. Sep 6, 2007 #1833 of 2718
    Smthkd

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    Plus the test location is different also because D* has not gotten full aquisition of the sat yet. The testing is being done mostly by Boeing. When complete it will be turned over to D* who will then do there final testing then move it to its transmission location to begin broadcasting.
     
  14. Sep 6, 2007 #1834 of 2718
    Sixto

    Sixto Well-Known Member

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    That makes sense.

    So the idea is to test far enough away from 103 to avoid signal issues with Spaceway 1. Then once signal issues are verified to not be a problem, move to 103. Seems fair.

    I guess if there was not already another satellite at 103 then they could have done all testing at the final location?
     
  15. Sep 6, 2007 #1835 of 2718
    Ken984

    Ken984 Active Member

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    Bossier...
    No I don't think they could have because AMC 1 is at 102.936. Spaceway1 was tested somewhere else before it was parked. I just re-read your last line, and i agree without any other sats in the vicinity it should have been ok to test from 102.775.
     
  16. Sep 6, 2007 #1836 of 2718
    bbaleno

    bbaleno Legend

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    My guess is that it has been turned over to D*
    I would think the channels that are seen in engineering mode should be evidence. I also think we will see HD within a week. or whenever they choose. didn't those channel go live about a week ago?

    can someone with knowlege enlighten me on what D* might do on their side for testing, besides uplink/downlink tests and tweeking.
     
  17. Sep 6, 2007 #1837 of 2718
    Ken984

    Ken984 Active Member

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    Bossier...
    The channels are not live as far as we know, they are showing in the guide in Engineering mode, so as yet D* has not uplinked anything to it. DirecTV does their own TTC also so they have to check that their systems can control the sat as well.
     
  18. Sep 6, 2007 #1838 of 2718
    bbaleno

    bbaleno Legend

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    It didn't dawn on me until you said it that it was just in the guide.
    I overlook the fact that D* might just want play with it a bit and make sure they are able to control it. :)

    can I retract my previous prediction?
     
  19. Sep 6, 2007 #1839 of 2718
    gregory

    gregory Legend

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    No
     
  20. Sep 6, 2007 #1840 of 2718
    bbaleno

    bbaleno Legend

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    Do you think the tle's that are being seen showing D10 moving oposite of what is expected might be D* getting comfortable with their new toy?
     
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