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    Re: Digital Image CN Exercise
    From: Marcel Tschudin
    Date: 2010 Apr 6, 23:38 +0300

    OK, Greg. Thanks to Gilda I missed your location only by a little bit
    more than 100 m.
    Regarding the height of the oil rig. I tried to do this a bit more
    sophisticated by using also the radius of curvature at this latitude
    in east/west direction. Unfortunately I don't show this value in the
    output. I therefore had to pass step by step through the program. This
    showed to be very helpful for finding two more bugs. This radius of
    curvature is calculated but only the one for the "standard location"
    was used, and the refraction is calculated but the wrong formula is
    selected; the refraction is calculated for the apparent altitude
    instead of the astronomical one. (I can notice a smile in the face of
    Mr. G. Bennett.)
    Thank you also for the other two attachments. How do you call this
    bird? It seems to be a little bit bigger than a sparrow ;-)

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