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    Help with interpretation of deflection from the vertical
    From: Fred Hebard
    Date: 2003 Mar 18, 22:05 -0500

    I downloaded one of the programs from the geodetic survey site
    referenced by Doug Stephen, and I also ran the online version of
    Deflec99, but I'm having trouble interpreting the output.
    
    Deflec99's output from the interactive version for my location was:
    
                                latitude        longitude      Xi      Eta
    Hor Lap
       Station Name          ddd mm ss.sssss ddd mm ss.sssss arc-sec arc-sec
    arc-sec
      USER LOCATION            36 46 48.00000  80 50 42.00000   -2.72
    0.61   -0.45
    
    
    The intd routine, also from the Deflec99 folder, gave an output of:
    
                                 latitude        longitude      Xi      Eta
      Hor Lap
       Station Name          ddd mm ss.sssss ddd mm ss.sssss arc-sec arc-sec
    arc-sec
      Our House                36 46 48.00000  81 50 42.00000   -2.14
    0.33   -0.25
    
    
    For comparison the output for a location near Denver, Colorado, gave:
    
                                latitude        longitude      Xi      Eta
    Hor Lap
       Station Name          ddd mm ss.sssss ddd mm ss.sssss arc-sec arc-sec
    arc-sec
      USER LOCATION            40  0  0.00000 105  5  0.00000    2.06
    13.22  -11.09
    
    
    The basic question is, what does this mean?  The readme for Deflec99
    discusses deviations in azimuth, but deviations in altitude are
    mentioned less frequently.
    
    Thanks,
    
    Fred
    
    
    

       
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