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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 5, 2007 #1781 of 2718
    Ken984

    Ken984 Active Member

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    Bossier...
    New tle can come at any time, i check every hr or so, I am sure the others check theirs on some kind of loose schedule also. When it happens it won't take long for somebody to post it here.
     
  2. Sep 5, 2007 #1782 of 2718
    Chip Moody

    Chip Moody Legend

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    Jul 31, 2007

    So if you imagined a 2-dimensional plane "cutting through" the earth along the equator - a 0 degree inclination would mean that the satellite is also sitting exactly on this plane?

    And when there's a deviation off the plane, where is the angle measured in relation? Center of the earth?

    Thanks,
    - Chip (Used to love Math)
     
  3. Sep 5, 2007 #1783 of 2718
    rock819

    rock819 AllStar

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    Mar 13, 2007
    HAS THE BIRD STARTED MOVING YET ? oops sorry but i am getting excited didnt mean to yell lol
     
  4. Sep 5, 2007 #1784 of 2718
    LameLefty

    LameLefty I used to be a rocket scientist

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    Middle...
    Yep, exactly.

    It's the angular difference between the plane of the orbit and the plane of the equator, as measured at any arbitrary point normal to the intersection of the two (such that both appear to be straight lines). Make sense?
     
  5. Sep 6, 2007 #1785 of 2718
    Dave

    Dave Icon

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    Jan 28, 2003
    Ok, my best guest on when they will start moving D10 to the 102.775 is:

    SEPTEMBER 11, 2007. All they asked for in there request was to start moving D10 to its permanent location was on or about September 1, 2007.

    There are also many post about D10 going live on SEPTEMBER 15, 2007.

    :eek2: :eek2: :eek2: :eek2: :eek2:
     
  6. Sep 6, 2007 #1786 of 2718
    EaglePC

    EaglePC Icon

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    Apr 14, 2007
    Well some has said the bird is moving ,it is just not going where it should be going.
    the bird was moving since Sept1st the atmosphere is not going all that well.
    hope this won't be a major problem...
     
  7. Sep 6, 2007 #1787 of 2718
    wilmot3

    wilmot3 Legend

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    Jul 24, 2007
    Directv 10
    1 31862u 07032a 07249.11580049 -.00000123 00000-0 10000-3 0 747
    2 31862 000.0843 295.5822 0000190 340.5452 007.8154 01.00271828 625
     
  8. Sep 6, 2007 #1788 of 2718
    wilmot3

    wilmot3 Legend

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    Jul 24, 2007
    Name DIRECTV 10
    NORAD # 31862
    COSPAR designator 2007-032-A
    Epoch (UTC) 2007-09-06 02:46:45
    Orbit # at Epoch 62
    Inclination 0.084
    RA of A. Node 295.582
    Eccentricity 0.0000190
    Argument of Perigee 340.545
    Revs per day 1.00271828
    Period 23h 56m 05s (1436.8 min)
    Semi-major axis 42 165 km
    Perigee x Apogee 35 786 x 35 787 km
    BStar (drag term) 0.000100000 1/ER
    Mean anomaly 7.815
    Propagation model SDP4
    Element number / age 74 / 0 day(s)
    StdMag (MaxMag) / RCS N/A
    Diameters N/A
    Satellite group N/A
     
  9. Sep 6, 2007 #1789 of 2718
    wilmot3

    wilmot3 Legend

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    Jul 24, 2007
    1DIRECTV 10
    Lon 102.5589° W
    Lat 0.0634° N
    Alt (km) 35 786.370
    Azm 216.6°
    Elv 35.2°
    RA 01h 40m 32s
    Decl -6° 14' 11"
    Range (km) 38 157.823
    RRt (km/s) 0.000
    Vel (km/s) 3.075
    Direction Descending
    Eclipse No
    MA (phase) 112.2° (79)
    TA 112.2°
    Orbit # 62
    Mag (illum) ? (86%)
     
  10. Sep 6, 2007 #1790 of 2718
    EaglePC

    EaglePC Icon

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    Apr 14, 2007
  11. Sep 6, 2007 #1791 of 2718
    syphix

    syphix Hall Of Fame

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    Jun 23, 2004
  12. Sep 6, 2007 #1792 of 2718
    timmac

    timmac AllStar

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    Jul 26, 2007
    I think the funny is that its moving the other direction
     
  13. Sep 6, 2007 #1793 of 2718
    Ken984

    Ken984 Active Member

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    Bossier...
    The trend we were looking at still holds true, but they didn't change much with the last set, eccentricity is still higher than the last set but not enough to make a very noticeable difference, inclination is down again also. We are getting there, just not as quickly as we would like.
     
  14. Sep 6, 2007 #1794 of 2718
    donshan

    donshan Godfather

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    Jun 18, 2007
    Ken, LameLefty (& others):

    Did anyone keep any TLE data on Spaceway 1 back in August when they drifted it slightly out of the way to move D10 into testing position ? That slight move for SW1 is somewhat similar to the size of this D10 move and I was wondering just how much Spaceway 1 TLEs changed during than move and how easily it was detectable in the SW1 TLE numbers.
     
  15. Sep 6, 2007 #1795 of 2718
    John4924

    John4924 Icon

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    Mar 19, 2007
    donshan, at the celestrak site here....

    http://www.celestrak.com/NORAD/archives/

    they have historical data. Maybe someone with time today can do some investigating?

    I did notice that GEO sats are not there, but you can fill out a form to request?

    Cheers,
    John
     
  16. Sep 6, 2007 #1796 of 2718
    LameLefty

    LameLefty I used to be a rocket scientist

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    Sep 28, 2006
    Middle...
    Here are the last five elsets for Spaceway 1:

    Code:
    SPACEWAY 1
    1 28644U 05015A   07248.27172321 -.00000119  00000-0  10000-3 0  4172
    2 28644 000.0173 315.0735 0000064 044.4522 339.4027 01.00271935  8725
    1 28644U 05015A   07245.34011889 -.00000109  00000-0  10000-3 0  4166
    2 28644 000.0193 293.3504 0000100 058.8834 008.4233 01.00271378  8706
    1 28644U 05015A   07241.41038069 -.00000106  00000-0  10000-3 0  4155
    2 28644 000.0190 299.1785 0000139 053.0861 029.8221 01.00271894  8669
    1 28644U 05015A   07239.55807591 -.00000106  00000-0  00000+0 0  4123
    2 28644 000.0366 296.2505 0000127 108.5857 028.5896 01.00271232  8659
    1 28644U 05015A   07239.15273863 -.00000105  00000-0  10000-3 0  4144
    2 28644 000.0375 296.2559 0000127 108.5732 242.2723 01.00271329  8640
    
     
  17. Sep 6, 2007 #1797 of 2718
    oakwcj

    oakwcj Lower Echelon

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    Sep 28, 2006
    I let Orbitron's simulation run out to 24 hours ahead using the new TLE. Right now the longitude is 102.5601. It will move slightly to the west for a while, but by tomorrow at this time it will be at 102.5589. Maybe when the solar winds pick up:)
     
  18. Sep 6, 2007 #1798 of 2718
    MIAMI1683

    MIAMI1683 New Member

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    Jul 11, 2007
    I take it they aren't in a hurry here. Maybe by next weekend we will see life from it. Lefty how slow can 91 miles be. I thought the move would be much faster once it started, to give them time to set the orbit again and all, and also check thier uplinks and downlinks. I guess I was wrong.
     
  19. Sep 6, 2007 #1799 of 2718
    timmac

    timmac AllStar

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    Jul 26, 2007
    Thats the wrong way Oak! What's up I thought if you go up it goes west if you go down it goes east. Give me that joystick!:eek2:
     
  20. Sep 6, 2007 #1800 of 2718
    donshan

    donshan Godfather

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    Jun 18, 2007
    Thanks, I sent the form in to see if I can get the data from mid July to present. If I find anything interesting I will post it for interpretation. I am just curious what the TLE data show when they slowly drifted Spaceway 1 earlier.
     
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