Wide field geo obs

From: satcom (john@satcom.freeserve.co.uk)
Date: Sat Nov 13 2004 - 05:51:12 EST

  • Next message: Leo Barhorst: "LB obs 2004 Oct 13 morning"

    Hi all ,
    
    A clear spell last night gave me chance to do some more tests on the 
    40mm/modified webcam combination.
    
    With a field of view of 4.5 degs I was able to identify the Astra and 
    Hotbird clusters , plus three other nearby birds.
    
    The advantage of the wide FOV is that it provides ample coverage of the arc 
    to give two three degree spaced  slots in one image.
    
    http://mysite.wanadoo-members.co.uk/satcom_transits/10to19.jpg
    
    ....shows the arc from 10 degs east to 19 east.
    Estimated magnitude of the dimmer birds approx plus12-14.
    Exposures of between 25 and 60 secs were used.
    
    Regards,
    
    John 
    
    
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