April 10, 2011 15:54
Ron,
The first formula for short distance above needs to be corrected if Latitudes and Longitudes are in degrees:
D=60*sqrt((L2-L1)^2 + ((Lo2-Lo1)*cos(L1±(L2-L1)/2))^2)
and the second formula corrected for degrees instead of radians:
c=Degrees(asin(60*(L2-L1)/D))
The first formula for short distance above needs to be corrected if Latitudes and Longitudes are in degrees:
D=60*sqrt((L2-L1)^2 + ((Lo2-Lo1)*cos(L1±(L2-L1)/2))^2)
and the second formula corrected for degrees instead of radians:
c=Degrees(asin(60*(L2-L1)/D))
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Jon Longworth
Jon Longworth