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SixtoReport: D12 Satellite Info in Post#1 - Live!

Discussion in 'DIRECTV General Discussion' started by Sixto, Jul 27, 2008.

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  1. Dec 31, 2009 #1801 of 10270
    smiddy

    smiddy Tain't ogre til its ogre

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    DITTO!
     
  2. Dec 31, 2009 #1802 of 10270
    P Smith

    P Smith Mr. FixAnything

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    W.Mdtrn Sea
    You saw that for sats on polar orbit, like XM/Sirius.
     
  3. Dec 31, 2009 #1803 of 10270
    HoTat2

    HoTat2 Hall Of Fame

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    Figure-8 ground tracks produced by polar orbits?

    I thought the ground tracks for polar orbiting satellites are of the common repeating bell curve type but extending from pole to pole in peak latitudes.

    I think a truly noticeable figure-8 ground track types are generated by various inclined elliptical geosynchronous orbits.
     
  4. Dec 31, 2009 #1804 of 10270
    Jeremy W

    Jeremy W Hall Of Fame

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  5. Dec 31, 2009 #1805 of 10270
    LameLefty

    LameLefty I used to be a rocket scientist

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    Analemma.com :)
     
  6. Dec 31, 2009 #1806 of 10270
    Sixto

    Sixto Well-Known Member

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    The view from slightly above the equator, looking at a cross section of the earth.

    The shade is the equator (looking from slightly above), with D10 in geostationary mapping to the equator, and the relative placement of D12 moving above and below, elliptical.

    [​IMG]
     
  7. Dec 31, 2009 #1807 of 10270
    smiddy

    smiddy Tain't ogre til its ogre

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    Nice view Sixto!
     
  8. Dec 31, 2009 #1808 of 10270
    Sixto

    Sixto Well-Known Member

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    TLE's one after another!

    #9 on the way ...
     
  9. Dec 31, 2009 #1809 of 10270
    HoTat2

    HoTat2 Hall Of Fame

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    Got it;

    Thanks for the links. Corrected my prior post on the causes of figure-8 ground tracks ...
     
  10. Dec 31, 2009 #1810 of 10270
    Sixto

    Sixto Well-Known Member

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    top of orbit (apogee) up significantly:
    Code:
    Name			DirecTV-12
    NORAD #			00009
    COSPAR designator	2009-075-A  
    Epoch (UTC)		12-31-2009 17:16:34
    Orbit # at Epoch	5
    Inclination		20.519
    RA of A. Node		98.831
    Eccentricity		0.5917642
    Argument of Perigee	0.103
    Revs per day		1.84228859
    Period			13h 01m 38s (781.63 min)
    Semi-major axis		28 108 km
    Perigee x Apogee	5 097 x 38 363 km
    Element number / age	9 / 0 day(s)
    
    Lon			147.7469° W
    Lat			19.0982° N
    Alt (km)		16 873.770
    
    [U] # [/u] [u]   Date   [/u] [u]Time GMT[/u] [u]Perigee[/u]  [u]Apogee[/u]  [u]Chg-Hrs[/u]  [u]  Day [/u]   [u]  Long  [/u]  [u]  Lat  [/u]  [u]Inclin[/u]
    009 12-31-2009 17:16:34  5 097 x 38,363  + 1.47H  @ 2.70D  147.75°E  19.10°N  20.52°
    007 12-31-2009 15:48:28  5,090 x 35,736  +24.25H  @ 2.64D  121.69°E   0.06°N  20.59°
    005 12-30-2009 15:33:44  5,089 x 35,740  +  .00H  @ 1.63D  126.34°E   0.02°N  20.59°
    006 12-30-2009 15:33:42  5,088 x 35,741  +21.06H  @ 1.63D  126.28°E   0.00°S  20.59°
    004 12-29-2009 18:30:07  5,087 x 35,793  +  .17H  @  .76D  127.27°W  10.81°N  20.55°
    
    [URL="http://www.dbstalk.com/showthread.php?t=164555"]Post#1[/URL] has the complete history
    [​IMG]
     
  11. Dec 31, 2009 #1811 of 10270
    LameLefty

    LameLefty I used to be a rocket scientist

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    Current ground track . . .
     

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  12. Dec 31, 2009 #1812 of 10270
    Sixto

    Sixto Well-Known Member

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    Have cleaned up the beginning of the thread.

    Post#1 now has the latest DirecTV-12 info post-launch.

    Post#2 has all the historical info.
     
  13. Dec 31, 2009 #1813 of 10270
    Sixto

    Sixto Well-Known Member

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    Geez! Update#11 is out. Can't keep up, got a New Years to go celebrate!

    Will post the #11 update and then gone for the night ...
     
  14. Dec 31, 2009 #1814 of 10270
    LameLefty

    LameLefty I used to be a rocket scientist

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    Here's a view from the equator, centered on 103ºW, based on the newest TLE.
     

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  15. Dec 31, 2009 #1815 of 10270
    Sixto

    Sixto Well-Known Member

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    similar ...
    Code:
    Name			DirecTV-12
    NORAD #			36131
    COSPAR designator	2009-075-A  
    Epoch (UTC)		12-31-2009 21:24:51
    Orbit # at Epoch	5
    Inclination		20.525
    RA of A. Node		98.810
    Eccentricity		0.5917168
    Argument of Perigee	0.122
    Revs per day		1.84285177
    Period			13h 01m 23s (781.38 min)
    Semi-major axis		28 102 km
    Perigee x Apogee	5 096 x 38 353 km
    Element number / age	11 / 0 day(s)
    
    Lon			150.2221° W
    Lat			2.7561° N
    Alt (km)		37 757.810
    
    [U] # [/u] [u]   Date   [/u] [u]Time GMT[/u] [u]Perigee[/u]  [u]Apogee[/u] [u]Chg-Hrs[/u] [u]  Day [/u]  [u]  Long  [/u] [u]  Lat  [/u] [u]Inclin[/u]
    011 12-31-2009 21:24:51  5 096 x 38,353 + 4.14H @ 2.88D 150.22°E  2.76°N 20.52°
    009 12-31-2009 17:16:34  5 097 x 38,363 + 1.47H @ 2.70D 147.75°E 19.10°N 20.52°
    007 12-31-2009 15:48:28  5,090 x 35,736 +24.25H @ 2.64D 121.69°E  0.06°N 20.59°
    005 12-30-2009 15:33:44  5,089 x 35,740 +  .00H @ 1.63D 126.34°E  0.02°N 20.59°
    006 12-30-2009 15:33:42  5,088 x 35,741 +21.06H @ 1.63D 126.28°E  0.00°S 20.59°
    
    [URL="http://www.dbstalk.com/showthread.php?t=164555"]Post#1[/URL] has the complete history
     
  16. Dec 31, 2009 #1816 of 10270
    doctor j

    doctor j Hall Of Fame DBSTalk Club

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    From jsat:
    D-10 and D-12_TLE #11

    Doctor j
     

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  17. Dec 31, 2009 #1817 of 10270
    Sixto

    Sixto Well-Known Member

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    I wonder if DirecTV has guys that track DirecTV-12 as well as this team does. :)

    Certainly not on New Years Eve night! :)

    Lots of good views with the different programs from everyone.

    Happy New Year!
     
  18. Dec 31, 2009 #1818 of 10270
    smiddy

    smiddy Tain't ogre til its ogre

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    Have a good safe night sir!

    Someone has to mind the candy store so I suspect someone is there. :D
     
  19. Dec 31, 2009 #1819 of 10270
    LameLefty

    LameLefty I used to be a rocket scientist

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    Our plans got cancelled tonight since Mrs. Lefty came down with a bad cold. I'm sure Dr. J and I and a few others will catch any new TLE's that pop up and post some info until our good friend Sixto gets back from his party. :)
     
  20. Dec 31, 2009 #1820 of 10270
    smiddy

    smiddy Tain't ogre til its ogre

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    I hope this doesn't hinder your plans for Saturday. :D I hope she feels better! Give here some TLC man! :)
     
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