Re: geostationary UNID (possibly Mercury 2)

From: Greg Roberts (grr@telkomsa.net)
Date: Tue Jun 19 2012 - 14:24:50 UTC

  • Next message: Marco Langbroek: "SATOBS ML (remote), 19 June 2012: Prowler, AEHF1"

    Hi Marco
    
    Yes its MERCURY 2 #23855. When I observed it on the 10 June -- observations 
    still to be processed by Mike - it was about 4 degrees off in azimuth for me.
    
    I may be observing tonight - if clear  -- been a bit under the weather with 
    chronic sinusitis so supposed to avoid getting cold...
    
    0.1 sec for geosats is not a problem - even 1 second accuracy is more than 
    adequate.
    
    Cheers
    Greg
    
    ----- Original Message ----- 
    From: "Marco Langbroek" <marco.langbroek@online.nl>
    To: "satelliet lijst (SeeSat)" <SeeSat-L@satobs.org>; "Ted Molczan" 
    <tedmolczan@rogers.com>; "Pierre Neirinck" <pierre-neirinck@wanadoo.fr>; "Bram 
    Dorreman" <bram.dorreman@skynet.be>; "Greg Roberts" <grr@telkomsa.net>; "Philip 
    Masding" <zen32156@zen.co.uk>; "Scott Campbell" <campbel.7@hotmail.com>; "Mike 
    McCants" <mmccants@prismnet.com>
    Sent: Tuesday, June 19, 2012 3:52 PM
    Subject: geostationary UNID (possibly Mercury 2)
    
    
    > Hi all,
    >
    > On my images of yesterday, is a bright near-geostationary object that I cannot 
    > 100% identify with a known object. The only possible candidate I can find 
    > would be Mercury 2 (96-026A, 23855) but then it would be off in position:
    >
    > 00000 00 000X   4353 G 20120618223432250 17 75 1747298-168680 56
    > 00000 00 000X   4353 G 20120618224332250 17 75 1757194-169560 56
    >
    >
    > Very approximate orbit using Scott's software:
    >
    > 1 00000U 00000X   12170.94690104 0.00000073  00000-0  50000-4 0    06
    > 2 00000   8.7402   9.8836 0000122  49.9816 208.0128  1.07206948    07
    >
    > Mercury 2 (from inttles file)
    > 1 23855U 96026A   12170.23476887  .00000000  00000-0  00000-0 0    05
    > 2 23855   8.8849  11.6188 0523724 204.3995 153.0540  1.00306992   392
    >
    >
    > Note: This is with my new camera (Canon EOS 60D - my old 450D died on me in te 
    > second half of May, with shutter failure) and I am still in the process of 
    > calibrating the timing of this camera. I have used some preliminary 
    > calibration results but times still can be off a bit (but by no more than 0.1s 
    > I suggest). For geostationary objects, this potential error does not matter 
    > much, I believe.
    >
    > - Marco
    >
    > -----
    > Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
    > e-mail: sattrackcam@langbroek.org
    >
    > 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
    > Station (b)log: http://sattrackcam.blogspot.com
    > Twitter: @Marco_Langbroek
    > ----- 
    
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