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    LOP by Sextant Box Shadow
    From: Greg Rudzinski
    Date: 2008 Jul 18, 17:34 -0700

         My sextant box was sitting before me on the dock casting a
    shadow.  Could this shadow provide me with a LOP?
    The answer is yes. The inverse tangent of the sextant box height
    divided by the length of the cast shadow generates an hs. I wasn't
    sure wether to treat this hs as an upper or lower limb so I just did
    the reduction as an upper limb to see what would happen.
    
    Latitude 34 09.8'N   Longitude 119 14.0'W   Height of eye at zero
    
    inverse tangent of (311.4mm/148.5mm) = 64 deg. 30.3' (hs)  at
    GMT(UTC,UT1) 21H 47M 28S on 07/11/2008
    
    Azimuth  248.9 true   Intercept 17.4' toward
    
       A very lucky LOP I think!
    
    
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