Re: UNID or not? 11 May 2009

From: Marco Langbroek (marco.langbroek@wanadoo.nl)
Date: Thu May 14 2009 - 09:12:06 UTC

  • Next message: Alberto Rango: "4542 SATOBS 13 MAY 2009."

    Bram Dorreman wrote:
    > I used your specified coordinates of the unknown object together with
    > the specified time with the closest TLE's in time and found the same
    > object as you found.
    > I applied Guide 8 with your observing location and with my standard 7
    > degrees field of few of my binoculars. It showed 73005A somewhat ahead
    > and south of ISS's track.
    > There were no other objects traveling in the same direction as ISS and
    > 73005A at that time at that specific location.
    > While this way of working is not as accurate as your way I am
    > convinced you found that old Kosmos.
    
    It is the most likely option indeed. I am surprised though by the relatively 
    large difference between predicted and observed position. The error is well 
    beyond measuring uncertainty so must be a real error in the tle.
    
    - Marco
    
    -----
    Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
    e-mail: sattrackcam@wanadoo.nl
    
    Cospar 4353 (Leiden):   52.15412 N, 4.49081 E (WGS84), +0 m ASL
    Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL
    SatTrackCam: http://home.wanadoo.nl/marco.langbroek/satcam.html
    Station (b)log: http://sattrackcam.blogspot.com
    -----
    
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