Updated elements

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Wed Jan 06 2010 - 19:16:37 UTC

  • Next message: Russell Eberst: "2010JAN6-7.OBS"

    Tony Beresford, Greg Roberts and Peter Wakelin, contributed observations
    used to determine one or more of the following element sets:
    
    SLDCOM 2                                              2631 X 11614 km
    1 21775U 91076A   10004.66597621  .00000006  00000-0  48619-2 0    01
    2 21775  63.3598 164.2301 3327006 266.8846  55.2996  5.53395455    06
    Arc 20091028.86-0104.81 WRMS resid 0.022 totl 0.008 xtrk
    
    USA 129                                                  291 X 927 km
    1 24680U 96072A   10004.78760928  .00005577  00000-0  85844-4 0    06
    2 24680  97.7984  59.3142 0455124 138.9766 224.6640 14.85414670    05
    Arc 20091214.49-0104.85 WRMS resid 0.042 totl 0.012 xtrk
    
    USA 129 recently set a new KeyHole lifetime in-orbit record, eclipsing the
    12.97 year record of USA 116 (95066A / 23728), which was de-orbited in
    November 2008. As of today, USA 129 has been in orbit for 13.05 years.
    
    USA 129 also holds the primary mission endurance record, 8.84 years, but
    perhaps not for long, given that USA 161 has already reached 8.26 years, and
    its replacement launch (NROL-49) is not due before late 2010.
    
    04539A                                                2080 X 38223 km
    1 90020U 04539A   10004.33850661  .00000000  00000-0  00000-0 0    02
    2 90020  64.4917 137.9245 6811683 246.8712  30.9951  2.00901954    05
    Arc 20091224.85-0104.8 WRMS resid 0.021 totl 0.013 xtrk
    
    Ted Molczan
    
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