There are two way to define a projection for your raster dataset.
1. From the Catalog window, open the properties of the raster dataset. Scroll down to the spatial reference information. Click the Edit button, and then select the coordinate system.
2. The Define Projection tool will allow you to set the coordinate system.
That means that ArcGIS doesn't know what the projection is. It projects it on the fly if the extents are correct. First, check the data's source, a dataset will have a text/metadata file that lists what coordinate system needs to be used. If you do not know what projection it needs to be in, then refer to these KB Articles for help.
There are two way to define a projection for your raster dataset.
1. From the Catalog window, open the properties of the raster dataset. Scroll down to the spatial reference information. Click the Edit button, and then select the coordinate system.
2. The Define Projection tool will allow you to set the coordinate system.
Hi Timothly, I tried these steps and facing a similar issue. I am unable to correct the coordinates in GIS when I import Revit with correct coordinates. It floats on ocean what am I missing?