topic Re: Figuring out Map Projection for X, Y Coordinates in Data Management Questions https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266219#M15378 <HTML><HEAD></HEAD><BODY><P>Bingo! It is UTM Zone 13 N in Feet.</P><P></P><P>I’m so use to working with UTM Meters , I had a mental block. Thanks</P><P></P><P>John R. Handley</P><P>Sr. GIS Technician – System Planning</P><P>(Work) 713-989-2033</P><P>(Cell) 832-229-2093</P></BODY></HTML> Wed, 08 Jun 2016 20:20:29 GMT JohnHandley 2016-06-08T20:20:29Z Figuring out Map Projection for X, Y Coordinates https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266214#M15373 <HTML><HEAD></HEAD><BODY><P><BR />I have coordinates that someone sent me and I'm having a problem figuring out the corresponding Map Projection. Normally I can solve these issues, but this one has stumped.</P><P></P><P>X 2,212,050., Y 11,298,265. West Texas, Pecos County (Numbers have been tweaked to protect the innocent.)</P><P></P><P>Thanks</P></BODY></HTML> Wed, 08 Jun 2016 14:21:13 GMT https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266214#M15373 JohnHandley 2016-06-08T14:21:13Z Re: Figuring out Map Projection for X, Y Coordinates https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266215#M15374 <HTML><HEAD></HEAD><BODY><P>Is the coordinates for only point? or you have many coordinates ?</P><P></P><P>Do you know where the coordinates locate?</P></BODY></HTML> Wed, 08 Jun 2016 16:22:42 GMT https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266215#M15374 AbdullahAnter 2016-06-08T16:22:42Z Re: Figuring out Map Projection for X, Y Coordinates https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266216#M15375 <HTML><HEAD></HEAD><BODY><P>Coordinates are for one point. Located in Pecos County, Texas (USA). Thanks</P><P></P><P>John R. Handley</P><P>Sr. GIS Technician – System Planning</P><P>(Work) 713-989-2033</P><P>(Cell) 832-229-2093</P></BODY></HTML> Wed, 08 Jun 2016 16:27:04 GMT https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266216#M15375 JohnHandley 2016-06-08T16:27:04Z Re: Figuring out Map Projection for X, Y Coordinates https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266217#M15376 <HTML><HEAD></HEAD><BODY><P>Well could be UTM or one of your state plane coordinates (probably in feet) since you are about 11,300,00 feet from the equator.&nbsp; It can't be meters since there are only about 10,000,000 meters from the equator to the poles.&nbsp; Now since you are the GIS technician, presumably there, why not look for what other data is around that you can align it with and try a projected coordinate system, for that area.&nbsp; You will either be bang on, or way off.... because you can't tell were something is from 2 numbers.&nbsp; For example, there are 120 places on earth with the exact same UTM coordinates, they differ by their UTM zone (60) and whether they are north or south of the equator.&nbsp; At least you have narrowed it down</P></BODY></HTML> Wed, 08 Jun 2016 17:59:25 GMT https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266217#M15376 DanPatterson_Retired 2016-06-08T17:59:25Z Re: Figuring out Map Projection for X, Y Coordinates https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266218#M15377 <HTML><HEAD></HEAD><BODY><P>Add the data (still with unknown/undefined coordinate system) to ArcMap. Add some base data that you know has a good coordinate system. Set the data frame's coordinate system to various "candidate" coordinate systems, like Texas state systems, state plane, etc. The base data will be projected to the new coordinate system. If the base data overlays the "unknown" data, you've found the coordinate system.</P><P></P><P>Neither of those works, by the way, but I think it might be what we call BLM zone 12N (US feet). It could be based on NAD27 or NAD83. </P><P></P><P>Projected coordinate systems, UTM, BLM (US Feet)</P><P></P><P>Melita</P></BODY></HTML> Wed, 08 Jun 2016 19:58:30 GMT https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266218#M15377 MelitaKennedy 2016-06-08T19:58:30Z Re: Figuring out Map Projection for X, Y Coordinates https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266219#M15378 <HTML><HEAD></HEAD><BODY><P>Bingo! It is UTM Zone 13 N in Feet.</P><P></P><P>I’m so use to working with UTM Meters , I had a mental block. Thanks</P><P></P><P>John R. Handley</P><P>Sr. GIS Technician – System Planning</P><P>(Work) 713-989-2033</P><P>(Cell) 832-229-2093</P></BODY></HTML> Wed, 08 Jun 2016 20:20:29 GMT https://community.esri.com/t5/data-management-questions/figuring-out-map-projection-for-x-y-coordinates/m-p/266219#M15378 JohnHandley 2016-06-08T20:20:29Z