Re: Phobos-Grunt and Rocket observation

From: Janos Tolgyesi (hg5apz@gmail.com)
Date: Sat Nov 19 2011 - 16:37:21 UTC

  • Next message: Ted Molczan: "RE: Time ticks on a PC, and making them accurate"

    I browse the exellent pages from Paul Maley, and I see, there was, or there
    is a Central American Reentry Observers Network (Caron). Can be
    revitalize/reactivate this people to ask them to record some pass of the
    Phobos-Grunt?
    t.janos
    
    
    On Sat, Nov 19, 2011 at 5:17 PM, Ted Molczan <ssl3molcz@rogers.com> wrote:
    
    > Paul Maley wrote:
    >
    > > Continuing observations from Nov 11 (from Oklahoma City), 13 (from
    > Houston) and 19 (tonite)
    > > show Phobos-Grunt to be slowly varying in brightness and not exhibiting
    > any obvious tumbling
    > > scenario.  On Nov 19 at 11:20UT I was able to track the payload for more
    > than 120 seconds
    > > under perfect conditions and there was no change in the lack of tumbling
    > signature. The
    > > rocket body was followed for only 65 seconds but its slow variation
    > revealed approximately
    > > 25 seconds between maxima.
    >
    > This is excellent. Did you record any imagery/video from which positional
    > obs could be reduced? If we can obtain a
    > reasonable number of obs during the brief visibility window that is
    > opening up for our most active observers, it could
    > provide insights into the orbit dynamics that are difficult to tease out
    > of finished product (TLEs).
    >
    > Ted Molczan
    >
    >
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    >
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