SATOBS ML (4353), 14 Oct 2011: ROSAT

From: Marco Langbroek (marco.langbroek@wanadoo.nl)
Date: Sat Oct 15 2011 - 11:54:28 UTC

  • Next message: Peter Wakelin: "SATOBS 2011 October 14"

    Obs SatTrackCam Leiden (Cospar 4353):
    
    20638 90 049A   4353 P 20111014172902300 17 75 1951413+652170 56 S+010 10
    20638 90 049A   4353 P 20111014172937300 17 75 2336331+327370 56 S+010 10
    
    -------------------------------------------------------------------------
    Canon EOS 450D + EF 35/2.0 @ 2.8, 200 ISO + ASTRORECORD astrometric
    software.
    What these numbers mean: http://www.satobs.org/position/IODformat.html
    -------------------------------------------------------------------------
    
    
    Obtained in deep twilight (sun at -6 degrees), 5 second exposures at 200 ISO, 
    bright blue background on images but trails and enough reference stars visible.
    
    The satellite was bright (+1) and steady, moving very fast.
    
    Positions agree well with elset 11287.77380863 in delta T (-0.02s resp. 0.09s) 
    but have a systematic x-track difference, just like yesterday, of 0.10-0.15 
    degrees. This is notably larger than my usual X-track error.
    
    - 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
    Twitter: @Marco_Langbroek
    -----
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