Re: Shenzhou 5: additional pieces catalogued

From: Edward Lyons (eddie.lyons@virgin.net)
Date: Thu Oct 16 2003 - 17:29:37 EDT

  • Next message: Jim Scotti: "Re: Observed Lunar transit -- what did I see?"

    Ted Molczan has noted the cataloguing of four debris items from Shenzhou 5,
    and compared this with the debris catalogued from SZ-1:
    
    http://www.satobs.org/seesat/Oct-2003/0172.html
    
    Two of the items listed by OIG (28047 and 28048) appear to be consistent
    with a single decaying object:
    
    SZ-5 DEBRIS
    1 28047U 03045E   03288.59858718  .06723565  75574-5  70803-2 0    16
    2 28047  42.2541  27.1893 0220966 126.2376 235.9125 15.76132015    90
    
    SZ-5 DEBRIS
    1 28048U 03045F   03288.40919366  .06429926  75357-5  73822-2 0    11
    2 28048  42.2728  28.2532 0245114 121.5841 240.9192 15.69973670    66
    SZ-5 DEBRIS
    1 28048U 03045F   03289.29623199  .06851002  76470-5  57880-2 0    23
    2 28048  42.2799  22.8040 0204295 127.8645 234.0845 15.82186390   209
    
    Apart from the inclination value, the other values for 28047 fit neatly
    between the two sets of values given for 28048. If this speculation is true,
    are we therefore dealing with three debris items?
    
    Ted suggested that perhaps two objects were catalogued twice each. My quick
    examination of the five sets of elements released for 28045 and 28046
    appears to show them to be consistent with two objects - although the third
    element set for 28046 appears to show a "manoeuvre" to a marginally higher
    orbit!
    
    SZ-5 DEBRIS
    1 28045U 03045C   03288.65756052  .10737333  76147-5  77040-2 0    19
    2 28045  42.6001  26.0501 0178040 145.9135 215.3317 15.89505724    93
    SZ-5 DEBRIS
    1 28045U 03045C   03289.22084999  .12181071  75635-5  64958-2 0    27
    2 28045  42.5458  22.4229 0122852 150.7064 213.1722 16.03843559   195
    
    SZ-5 DEBRIS
    1 28046U 03045D   03288.40521052  .09777416  75376-5  72701-2 0    19
    2 28046  42.5412  27.7067 0191154 149.6856 211.5058 15.86374945    58
    SZ-5 DEBRIS
    1 28046U 03045D   03289.28178427  .11423017  76630-5  41171-2 0    20
    2 28046  42.5505  22.1783 0128725 156.2957 210.0595 16.06724583   202
    SZ-5 DEBRIS
    1 28046U 03045D   03289.34403849  .08939467  78467-5  44455-2 0    32
    2 28046  42.5412  21.7868 0130064 156.4732 201.5933 16.03192004   216
    
    
    I don't claim any expertise in analysing orbits from TLEs, so I will be
    interested to see what the acknowledged gurus of these matters make of it!
    
    8-)
    
    
    Eddie Lyons
    Portsmouth, UK
    
    
    -----------------------------------------------------------------
    To unsubscribe from SeeSat-L, send a message with 'unsubscribe'
    in the SUBJECT to SeeSat-L-request@satobs.org
    List archived at http://www.satobs.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Thu Oct 16 2003 - 17:37:23 EDT