RE: STS 115: NASA estimated elements

From: Ted Molczan (seesat-list@rogers.com)
Date: Fri Sep 08 2006 - 13:08:26 EDT

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    Lift-off is scheduled for 2006 Sep 09 at 15:14:56 UTC. Spaceflight Now reports,
    "weather forecasters predict an 80 percent chance of acceptable conditions":
    
    http://www.spaceflightnow.com/shuttle/sts115/status.html
    
    NASA's estimated elements are available at the following URL. They take into
    account all planned manoeuvres, and are revised  throughout the mission, as
    required.
    
    http://spaceflight1.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/orb
    it/SHUTTLE/SVPOST.html
    
    For quick reference, I have extracted the elsets from MECO through docking.
    
    1. Sep 09, 15:25:25 UTC (MECO) - Sep 09, 15:54:45 UTC
    
    1 99115U           6252.64265046  .01000000  00000-0  44263-6 0    02
    2 99115  51.6321 112.5211 0132744 348.7786  69.0727 16.48569616    05
    
    NOTE: NASA's MECO 2-line elset is erroneous; so I generated the above by
    converting NASA's True of Day Rotating (TDR) [aka Earth-Fixed Greenwich (EFG)]
    Cartesian state vector to SGP4, using Ken Ernandes' VEC2TLE program, and added
    realistic decay terms for the brief duration of existence of the orbit. Our web
    site has a link to Ken's program:
    
    http://www.satobs.org/orbsoft.html#Other
    
    
    2. Sep 09, 15:54:45 UTC - Sep 09, 18:10:29 UTC
    
    1 99115U          06252.69436307  .00014500  00000-0  95600-4 0  9015
    2 99115  51.6324 112.2375 0042349 185.9994 174.0684 16.06469124    27
    
    
    3. Sep 09, 18:10:29 UTC - Sep 10, 07:07:50 UTC
    
    1 99115U          06252.81939306  .00014500  00000-0  95600-4 0  9027
    2 99115  51.6356 111.5717 0023371 355.4991   4.5967 15.90714097    46
    
    
    4. Sep 10, 07:07:50 UTC - Sep 10, 18:27:15 UTC
    
    1 99115U          06253.32209355  .00014500  00000-0  95600-4 0  9039
    2 99115  51.6324 108.9289 0020225 233.3453 126.5855 15.81453931   124
    
    
    5. Sep 10, 18:27:15 UTC - Sep 11, 06:36:50 UTC
    
    1 99115U          06253.82765735  .00014500  00000-0  95600-4 0  9044
    2 99115  51.6331 106.2993 0016625 241.8410 118.1077 15.80358346   206
    
    
    6. Sep 11, 06:36:50 UTC - Sep 11, 08:08:22 UTC
    
    1 99115U          06254.33363069  .00014500  00000-0  95600-4 0  9056
    2 99115  51.6319 103.6810 0010187 280.8234  79.1784 15.78001970   289
    
    
    7. Sep 11, 08:08:22 UTC - Sep 11, 09:25:15	UTC
    
    1 99115U          06254.39702786  .00014500  00000-0  95600-4 0  9066
    2 99115  51.6331 103.3546 0010305 321.6398  38.4033 15.76328145   293
    
    
    8. Sep 11, 09:25:15 UTC
    
    1 99115U          06254.39702620  .00014500  00000-0  95600-4 0  9074
    2 99115  51.6341 103.3549 0012227 325.9976  34.0403 15.75877614   293
    
    Ted Molczan
    
    
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