Re: Updated NROL-65 payload elements

From: C. Bassa (cgbsat@gmail.com)
Date: Thu Aug 29 2013 - 19:47:25 UTC

  • Next message: satrack@libero.it: "NROL-65 Obs"

    USA 245 [39232/13043A] was seen at 19:42UT from COSPAR 4171 and it was
    on track and within half a second of these elements.
    
    I will report positions later.
    
    Regards,
        Cees
    
    On Thu, Aug 29, 2013 at 2:30 PM, Ted Molczan <ssl3molcz@rogers.com> wrote:
    > I derived the following TLE from timed positions reported by Cees Bassa, Kevin Fetter, Marco Langbroek, Mike McCants,
    > Jon Mikel, Russell Eberst, and myself:
    >
    > NROL-65 payload                                          252 X 996 km
    > 1 39232U 13043A   13241.13402991  .00022653  00000-0  18825-3 0    08
    > 2 39232  97.8829 304.6235 0531433 191.9909 166.8235 14.80682241    01
    > Arc 20130828.81-0829.14 WRMS resid 0.039 totl 0.021 xtrk
    >
    > All elements were permitted to vary in the analysis. It was a bit early to expect a reliable rate of decay, but the
    > value seems reasonable.
    >
    > For anyone who has yet to report positions from visual or optical sightings, whether of the payload or its rocket body:
    > it's never too late to do so. If we receive them within the next few days, they can inform our current analyses; later
    > reports will still be valued in the archives. It is not unusual to revisit analyses of orbits years after the fact,
    > which benefit from having most complete observational record possible.
    >
    > Ted Molczan
    >
    >
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