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<DIV dir=ltr><FONT face="Times New Roman" color=#000000 size=2>Manual of Photogrammetry, 5th edition, Chapter 3, page 21, equation 3.74</FONT></DIV>
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<DIV dir=ltr><FONT size=2>Cliff Mugnier</FONT></DIV>
<DIV dir=ltr><FONT size=2>Louisiana State University</FONT></DIV></DIV>
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<FONT face=Tahoma size=2><B>From:</B> proj-bounces@lists.maptools.org on behalf of Hersman, William<BR><B>Sent:</B> Mon 23-Jun-08 10:52<BR><B>To:</B> proj@lists.maptools.org<BR><B>Subject:</B> [Proj] True North Angle<BR></FONT><BR></DIV>
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<P><FONT face=Arial size=2>Hello,</FONT> </P>
<P><FONT face=Arial size=2>Does anyone know the formula to calculate the deviation angle between true north and Universal Transverse Mercator grid north? Thanks.</FONT></P>
<P><FONT face=Arial size=2>Willy Hersman</FONT> </P></DIV></BODY></HTML>