Re: STS 107 debris

From: NK (i-cosmos@mtu-net.ru)
Date: Thu Apr 10 2003 - 11:58:32 EDT

  • Next message: Ted Molczan: "RE: STS 107 debris"

    Edward,
    
    > Given the newly-released TLE for object 27713 = 03-003B, "STS 107 debris",
    > and the actual STS-107 TLEs, could anyone, e.g. using COLA and/or its
    > kin, determine when the two objects were coincident?
    
    I believe one of the three lines in the middle is
    relevant. As the separation occured later than
    Ted Molczan thought it would be great if he returned
    to his analysis and amended it.
    
    Igor Lissov
    
    
    STS-107
    1 27647U 03003A   03017.83629514  .00022170  20523-8  46696-4 0    34
    2 27647  39.0178 221.3228 0012205 358.9540  12.3795 15.97646172   207
    
    STS 107 DEB
    1 27713U 03003B   03018.89361124  .04158089  28060-1  63330-2 0    15
    2 27713  39.0177 214.2209 0013015   7.8234 352.0943 16.06862990    17
    
    
    COLA output:
    
    Target satellite perigee:   246.84 km
    Target satellite apogee:    264.10 km
    Velocity at perigee:     7.7618 km/sec
    TLE collision search file: sts107.txt
    
    COLA will search for satellites having altitude ranges
    that intersect the range from    -3.16 to   514.10 km,
    and that come within ***** km of the target satellite at
    a time within +/-   2.0 days of both satellite epochs.
    
    
    Satellites in range of STS 107 DEB:    1
    
       Date     UTC Time   Norad           Name           Range (km) NdAng
    EphAge
    
     1/17/2003  1:04:02.39 27647 STS-107                     196.4
      89.5  -0.79
     1/17/2003  2:32:38.64 27647 STS-107                     153.9
      89.7  -0.73
     1/17/2003  4:01:30.31 27647 STS-107                     122.4
      89.8  -0.67
     1/17/2003  5:30:35.95 27647 STS-107                      99.8
      89.9  -0.61
     1/17/2003  6:59:54.79 27647 STS-107                      83.7
      89.9  -0.54
     1/17/2003  8:29:26.50 27647 STS-107                      72.3
      89.9  -0.48
     1/17/2003  9:59:11.06 27647 STS-107                      63.8
      89.9  -0.42
     1/17/2003 11:29:08.69 27647 STS-107                      56.3
      90.0  -0.36
     1/17/2003 12:59:19.85 27647 STS-107                      48.4
      90.1  -0.30
     1/17/2003 14:29:45.45 27647 STS-107                      38.6
      90.3  -0.23
     1/17/2003 16:00:27.56 27647 STS-107                      25.5
      90.8  -0.17
    
     1/17/2003 17:31:36.67 27647 STS-107                       8.0
      93.1  -0.11
     1/17/2003 18:40:13.39 27647 STS-107                       8.6
     170.7  -0.06
     1/17/2003 19:36:05.50 27647 STS-107                       3.6
      95.9  -0.02
    
     1/17/2003 21:04:24.58 27647 STS-107                      37.0    91.1
    +0.04
     1/17/2003 22:31:34.59 27647 STS-107                      77.9    90.4
    +0.10
     1/17/2003 23:57:30.85 27647 STS-107                     126.8    90.1
    +0.16
    
              (Convergence problem with #27647: orbits may coincide.)
    
    
    
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