RE: STS 115: NASA estimated elements

From: Ted Molczan (seesat-list@rogers.com)
Date: Thu Sep 07 2006 - 18:19:55 EDT

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    Lift-off is scheduled for 2006 Sep 08 at 15:40:37 UTC. Spaceflight Now reports
    that the weather forecast is a 70 percent probability of GO for launch:
    
    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 08, 15:51:06 UTC (MECO) - Sep 08, 16:19:43 UTC
    
    1 99999U           6251.66048611  .01000000  00000-0  44275-6 0    03
    2 99999  51.6315 117.9773 0132748 348.7800  69.0699 16.48567837    02
    
    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 08, 16:19:43 - Sep 09, 07:13:18 UTC
    
    1 99115U          06251.71178045  .00014500  00000-0  95600-4 0  9019
    2 99115  51.6315 117.6911 0041595 337.9111  22.0286 16.26236849    22
    
    
    3. Sep 09, 07:13:18 UTC - Sep 09, 18:58:10 UTC
    
    1 99115U          06252.32623186  .00014500  00000-0  95600-4 0  9029
    2 99115  51.6308 114.2873 0032223 334.2106  25.7475 16.24367629   126
    
    
    4. Sep 09, 18:58:10 UTC - Sep 10, 07:45:32 UTC
    
    1 99115U          06252.81874902  .00014500  00000-0  95600-4 0  9038
    2 99115  51.6315 111.5655 0088383 205.8758 153.7985 15.97945037   207
    
    
    5. Sep 10, 07:45:32 UTC - Sep 10, 09:16:38 UTC
    
    1 99115U          06253.38236996  .00014500  00000-0  95600-4 0  9047
    2 99115  51.6308 108.5788 0009761 277.1879  82.8176 15.77986834   292
    
    
    6. Sep 10, 09:16:38 UTC - Sep 10, 10:33:31 UTC
    
    1 99115U          06253.44576721  .00014500  00000-0  95600-4 0  9058
    2 99115  51.6321 108.2522 0010410 318.6189  41.4185 15.76308255   305
    
    
    7. Sep 10, 10:33:31 UTC
    
    1 99115U          06253.44576491  .00014500  00000-0  95600-4 0  9063
    2 99115  51.6325 108.2524 0012479 321.9297  38.0984 15.75851400   308
    
    Ted Molczan
    
    
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