RE: Unidentified Satellites

Date: Wed May 08 2013 - 07:37:35 UTC

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    It is also possible to run a quick identification through
    Enter the site with the following link putting your latitude and longitude 
    (correct lat and lon values for your location):
    When the page is ready, set the correct observation time using the time 
    buttons in the left sliding panel.
    Finally, double click on the sky chart at the position of the observed 
    satellite. The system will show you 
    all the objects crossing that part of sky at that time.
    >----Messaggio originale----
    >Data: 8-mag-2013 3.02
    >A: ""<>
    >Ogg: RE: Unidentified Satellites
    >I need to quantify the possible sources of errors, then I will have a better 
    idea of how accurate my observations are:
    >1.  When looking at the sky, assuming that the field of view is around 140 
    degrees wide (and the view is unobstructed), how far away could a satellite be 
    from the observer in both a straight line and in reference to the ground?
    >2.  How accurate is Kepler data and data pushed out by USSTRATCOM?  How far 
    could satellites deviate from this plotted location?
    >3.  Anything else you can think of.
    >Mark McCarron
    >> Date: Tue, 7 May 2013 22:07:53 +0100
    >> Subject: Re: Unidentified Satellites
    >> From:
    >> To:
    >> CC:
    >> Hi Mark,
    >> On Tue, May 7, 2013 at 9:54 PM, Mark McCarron <> 
    >> > Sorry, you would need some understanding of image processing and software 
    engineering.  It is possible to automate observations and orbital 
    calculations.  I was wondering if anyone has done this.
    >> Yes this has been done. I have written my own software to process
    >> frames from a highly sensitive video camera, calibrate the astrometry
    >> and measure satellite positions. Such measurements are routinely
    >> posted here such that we can keep track of the orbits of objects for
    >> which SpaceTrack does not publish elements.
    >> I observe from essentially the same latitude as you and in my video
    >> observations I see very few unidentified satellites; the vast majority
    >> of objects I do see agree with predictions from up to date elements by
    >> SpaceTrack and Mike McCants. Observations of those objects that are
    >> not immediately identified are posted on this list, just like Kevin
    >> Fetter did earlier today.
    >> Regards,
    >>     Cees
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