RE: Fragmentation ... View from N

From: Ted Molczan (molczan@rogers.com)
Date: Mon May 31 2004 - 14:40:33 EDT

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    Bjorn Gimle wrote:
    
    > At 14:54, 32 debris objects where within +-4 degrees of 
    > orbital longitude from the satellite. Best clustering of the 
    > orbits appears to have been around 64E (on that orbit), 10N. 
    > Graphing the orbital height vs. latitude for the ascending 
    > and descending halves of the orbit at that time confirms 
    > this. Excluding the six most differing orbits, the remainder 
    > are 815-841 km at latitude 9S (ascending). On the other half, 
    > I get 798-997 km.
    > 
    > My charts are about 60k in .gif or .jpg, so I can't put them on DSat.
    
    Bjorn has e-mailed me his graphs, and I have placed them on satobs.org:
    
    1. 91-82 objects 2004-04-15 14:40 Ascending (E)
    
    http://satobs.org/seesat_ref/91082Abreakup/DMSP_asc.gif
    
    
    2. 91-82 objects 2004-04-15 14:40 Descending (W)
    
    http://satobs.org/seesat_ref/91082Abreakup/DMSP_desc.gif
    
    
    3. 91-82 objects 2004-04-15 E-W (km) vs. Latitude
    
    http://satobs.org/seesat_ref/91082Abreakup/DMSP_e-w_asc.gif
    
    
    4. 91-82 objects 2004-04-15 14:54 UTC track over Iran
    
    http://satobs.org/seesat_ref/91082Abreakup/DMSP_Iran.gif
    
    Bjorn points out that the above plot "gives an indication on how many objects
    are in a small area over four minutes", per his following table:
    
    http://satobs.org/seesat_ref/91082Abreakup/DMSP_Iran.txt
    
    Ted Molczan
    
    
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