RE: PAS 6 orbital data updated on space track

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Wed Feb 16 2011 - 00:23:02 UTC

  • Next message: Brad Young: "BY Obs Feb 16"

    Kevin Fetter wrote:
    
    > I got a surprise today, the orbital data for the PAS 6 geo sat 
    > ( 24891 ), has been updated on space track. The last time 
    > orbital data was available for it, was back in 2004.
    > 
    > So it really is in, a 13 degree orbit. 
    
    Hmmm, the epoch is Feb 13, two days after Classification of Geosynchronous Objects 13 (COGO) was
    released, which identified ISON's UI.094 as PAS 6. That object was first reported in COGO 8. Here
    are the reported elements in TLE form:
    
    PAS 6
    1 24891U 97040A   11001.00000000  .00000000  00000-0  00000-0 0    00
    2 24891  13.5885   4.0938 0693850 117.4835 296.7720  0.93694643    07
    
    The same report also identified a couple of Proton-M fourth stages (Briz-M).
    
    One is ISON's UI.153, which first appeared in COGO 11:
    
    Thor 5 r
    1 96153U 08006C   11001.00000000  .00000000  00000-0  00000-0 0    04
    2 96153   3.6328  45.6259 0260112 191.0820 170.1067  0.95115847    04
    
    USSTRATCOM has yet to catalogue this object, so I used our number.
    
    The other Proton rocket body appeared for the first time. I believe that USSTRATCOM has set aside
    36398 for that object:
    
    Intelsat 16 r
    1 36398U 10006B   11001.00000000  .00000000  00000-0  00000-0 0    02
    2 36398   0.6267  81.0395 0441702 308.5765 123.4267  0.86944835    02
    
    I imagine that USSTRATCOM eventually will report TLEs of those objects.
    
    The SBSS (Space Based Space Surveillance) satellites can be expected to improve the reliability of
    USSTRATCOM's high altitude catalogue and TLEs.
    
    Ted Molczan
    
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