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-   -   Help decifering GPS cordinates? (https://www.horizonsunlimited.com/hubb/the-hubb-pub/help-decifering-gps-cordinates-87488)

Temporaryescapee 7 May 2016 10:43

Help decifering GPS cordinates?
 
I've been given some GPS co-ordinates in the following format:

37N 0338762
0682699

I know it is somewhere near here: 6.24499, 37.57761 (within a few miles I believe). Is anyone able to show me how to convert the co-ordinates I have been given into this decimal format?

Cheers
Andy

Warin 7 May 2016 11:21

If you want the ultimate accuracy you need to know two things about the reference;
  • The projection
  • The datum

The projection is how the spherical globe has been distorted into a flat page - different methods are used for different purposes depending on what is wanted.

The datum is the correction used from a given reference point.

From your given data a guess can be made as to the projection, the datum is impossible to guess at .. and can lead to errors of ~100 meters... possibly more. If you want more accuracy than this you will need to ask the source of the information for the datum used at least. :oops2:

----------------
Let us assume this is UTM projection ... :innocent:

Zone 37N
easting 0338762
northing 0682699

For the northern hemisphere using datum WGS84

37.542751336544384 North
6.174356986248382 East

... from

Geographic/UTM Coordinate Converter

If you want formulas ... google convert UTM to decimal degrees .. :smartass:

Temporaryescapee 7 May 2016 13:51

Thanks Warin, really appreciate the help. 100m accuracy is fine - I just needed to locate the village I am supposed to reach.

Cheers
Andy


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