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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: UTM to lat/lon formulas
From: Paul Hirose
Date: 2003 Dec 14, 14:37 -0800
From: Paul Hirose
Date: 2003 Dec 14, 14:37 -0800
George Huxtable wrote:
>
> North 40.0 deg, West 90.0 deg, this gives me for UTM-
>
> x= 756155; y= 4431860
It's within about 50 meters of the results from the online National
Geodetic Survey calculator:
Latitude Longitude Datum
INPUT = N400000.0 W0900000.0 NAD27
=======================================================
NORTH(Y) EAST(X) ZONE CONVERGENCE SCALE
METERS METERS DD MM SS.ss
----------- ----------- ---- ----------- ----------
4431859.132 756106.378 15 1 55 45.88 1.00040753
The UTM calculator is here:
http://www.ngs.noaa.gov/TOOLS/utm.html
To get the Clarke ellipsoid, you have to select NAD27 datum. Also, for
a point on the edge of a zone, the calculator will give its UTM coords
for both zones.
