"Re: Video of Unid satellite ?"

From: Vitaly Mechinsky (lupus_sat@tut.by)
Date: Mon May 17 2010 - 23:41:51 UTC

  • Next message: Vitaly Mechinsky: "ObsEntry program"

    >While playing back the video captured last night, something passed by, which I so far, can't >match to any satellite.
    >
    >http://www.kfetter.com/satvideo/2010/may/MAY17unid.wmv
    >
    >File Size = 15 Mb
    >
    >Area of sky
    >
    >16 h 06 m R.A
    >4 deg 52 min Dec
    >
    >A few minutes after it passed, I could see 25868 passing by, which was faint.
    >
    >Kevin
    
    Kevin, I can't find any satellite from space-track.org and Mike
    McCants web-site too. But in your video there are 4 satellites (I
    think) -- Unid and three geosynchronous satellite (see:
    http://hep.at.tut.by/tmp/MAY17unid_.jpg).
    
    This image was obtained by next way: I converted initial
    "MAY17unid.wmv" into AVI-file, then I ude Registax software for
    summing each frame to take into account stars moving during all video
    (i.e. each star in each frame was summed by itself in onother frames)
    -- 1617 frames were summed. In this case any object, that has angular
    velosity not equal of stars one, will be represented as track -- you
    can see the long track of Unid, and 3 small tracks of some objects.
    They may be an "hot" pixels of your kamera, but its low intensity is
    not typical for "hot" pixels. Maybe this 3 tracks -- unknown
    geosynchronous satellite. To check the camera on "hot" pixels in this
    three points of CCD is very simple -- by increasing exposure time up
    to 1-2 seconds with closed lens. If you will see bright "hot" pixels
    in this point, that short tracks are not satellites.
    
    
    -- 
    Best regards,
    
    Vitaly (Minsk, Belarus).
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