I need some help with understanding JPEG 2000 imagery and coordinate systems.
I've downloaded NAIP files from USGS in jp2 format and am attempting to place them over a vrt height map I've created using QGIS 2.6. The .vrt shows the proper lat/lon decimal degrees such as -77.15, 41.91but when I add the .jp2 raster, it is completely off the map with coordinates like -8,575,110, 5,164,330. The jpeg 2000s are delivered in WGS 84 projection.
The jpeg 2000 Projection was "WGS_1984_Web_Mercator_Auxliary_Sphere". I used gdal warp to change it to a WGS 84 projection to the jpeg 2000 which coverted it to a GEOTIFF.
Comparing the information on the vrt and new GTIFF, the two files are nearly identical, the GEOGCS, DATUM, SPHEROID, AUTHORITIES, PRIMEM are identical. However, the Origins are different with vrt containing the proper decimal degree origin and the jpeg 2000 having the wacky -8.5 million, 5.1 million as the origin.
How do I align these files?