Re: Kevin's July 31st unknowns

From: C. Bassa (cgbsat@gmail.com)
Date: Thu Aug 01 2013 - 22:48:48 UTC

  • Next message: Mike McCants: "Re: Kevin's July 31st unknowns"

    It appears that Kevin's 99212/13706B and 99215/13712B unknowns are one
    and the same object. The tracks of these objects are on the same part
    of the sky and have similar directions and angular motions.
    
    Since the observations are separated by about 6 days there are several
    solutions that fit these observations. They differ by the number of
    revolutions the object has had between them. Below are a set of search
    elements ranging from 15 revolutions (elset 79015) to 21 revolutions
    (elset 79021).
    
    Kevin, the best strategy to recover the object is to look at the same
    part of the sky at the following times:
    August 2nd, 03:52UT; elsets 79015, 79018, 79021 should be visible
    August 3rd, 03:47UT; elsets 79016, 79018, 79020 should be visible
    August 4th, 03:42UT; elsets 79015, 79018, 79021 should be visible
    August 5th, 03:37UT; elset 79018 should be visible
    August 6th, 03:32UT; all elsets should be visible.
    
    If you see it and can track it for a significant part of the orbit it
    should help distinguish which of the search elsets is the best fit.
    
    Regards,
       Cees
    
    Unknown 130726B (15 revs)
    1 79015U 13706B   13212.16831919  .00000000  00000-0  00000-0 0    04
    2 79015  28.0319 248.2192 7056598 337.8786  12.8713  2.50850965    02
    Unknown 130726B (16 revs)
    1 79016U 13706B   13212.16831919  .00000000  00000-0  00000-0 0    04
    2 79016  27.7914 247.8173 6704839 343.6919  13.5849  2.67574760    05
    Unknown 130726B (17 revs)
    1 79017U 13706B   13212.16831919  .00000000  00000-0  00000-0 0    04
    2 79017  28.0748 247.6125 6843773 336.8365  14.7440  2.84292573    07
    Unknown 130726B (18 revs)
    1 79018U 13706B   13212.16831919  .00000000  00000-0  00000-0 0    04
    2 79018  28.0358 247.2367 6700194 337.3812  15.6756  3.01013457    02
    Unknown 130726B (19 revs)
    1 79019U 13706B   13212.16831919  .00000000  00000-0  00000-0 0    04
    2 79019  28.1898 247.1261 6681125 334.9300  16.6633  3.17731961    00
    Unknown 130726B (20 revs)
    1 79020U 13706B   13212.16831919  .00000000  00000-0  00000-0 0    04
    2 79020  28.1071 246.6734 6519585 336.0301  17.6146  3.34452557    06
    Unknown 130726B (21 revs)
    1 79021U 13706B   13212.16831919  .00000000  00000-0  00000-0 0    04
    2 79021  28.0866 246.3047 6399151 336.1756  18.5877  3.51172107    01
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