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I am trying to convert MGRS coordinates to something that I can add into ArcGIS 10.2

I have a DBF file with MGRS coordinates that look like this: 11UNG37756325 They are in a text field and I am trying to use the Convert Coordinate Notation (Data Management) tool to convert them into either DD or UTM so I can use the "Add XY Data" function in ArcGIS.

I set my tool up as such

Input Table: My dbf table

Input Coordinate System: I left to default (GCS_WGS_1984) But also tried with (WGS_1984_UTM_Zone_11N)

Output Coordinate System: Left to defaut (GCS_WGS_1984) But also tried with (WGS_1984_UTM_Zone_11N)

Input Coordinate Format: MRGS

X Field: My text field with the MRGS coordinate writen as 11UNG37756325

Output Coordinate Format: UTM_ZONES, but I also tried DD_2

When I run, I get unknown error that looks like this

"Messages Executing: ConvertCoordinateNotation UTM11 I:\Workspaces\James\AlainTasks\140612_EWCCarbonStock\Data\Databases\NSDBFromAl\Testing\UTM11_Convert.shp MGRS MGRS MGRS UTM_ZONES # "PROJCS['WGS_1984_UTM_Zone_11N',GEOGCS['GCS_WGS_1984',DATUM['D_WGS_1984',SPHEROID['WGS_1984',6378137.0,298.257223563]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]],PROJECTION['Transverse_Mercator'],PARAMETER['False_Easting',500000.0],PARAMETER['False_Northing',0.0],PARAMETER['Central_Meridian',-117.0],PARAMETER['Scale_Factor',0.9996],PARAMETER['Latitude_Of_Origin',0.0],UNIT['Meter',1.0]];-5120900 -9998100 10000;-100000 10000;-100000 10000;0.001;0.001;0.001;IsHighPrecision" PROJCS['WGS_1984_UTM_Zone_11N',GEOGCS['GCS_WGS_1984',DATUM['D_WGS_1984',SPHEROID['WGS_1984',6378137.0,298.257223563]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]],PROJECTION['Transverse_Mercator'],PARAMETER['False_Easting',500000.0],PARAMETER['False_Northing',0.0],PARAMETER['Central_Meridian',-117.0],PARAMETER['Scale_Factor',0.9996],PARAMETER['Latitude_Of_Origin',0.0],UNIT['Meter',1.0]] Start Time: Fri Dec 12 09:47:50 2014

ERROR 999999: Error executing function.

cannot convert mgrs to xy coordinate

Failed to execute (ConvertCoordinateNotation).

Failed at Fri Dec 12 09:47:51 2014 (Elapsed Time: 1.17 seconds)"

I don't know if there is a problem in my input format of the MRGS coordinates or if my input or output coordinate systems are inappropriate.

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    When I drop down a level and run directly in the Esri projection engine, I get NaN (not a number) so the software doesn't think this is a valid MGRS string. NGA's Geotrans reports: "Latitude band cuts across 100km square." That means the first letter doesn't jive with the other two and the numbers. – mkennedy Dec 12 '14 at 17:59
  • Hmmm, I seem to get errors when using this data in web browser converts and in geotrans. Maybe it is my data that's messed up. Thanks for the comment though. – Calavin Dec 12 '14 at 18:54
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As commented by @mkennedy:

When I drop down a level and run directly in the Esri projection engine, I get NaN (not a number) so the software doesn't think this is a valid MGRS string. NGA's Geotrans reports: "Latitude band cuts across 100km square." That means the first letter doesn't jive with the other two and the number.

You seem to agree when you commented:

I seem to get errors when using this data in web browser converts and in geotrans. Maybe it is my data that's messed up.

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