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Satellite imagery is not typically georeferenced against a projected coordinate system (think cartesian coordinates) like State Plane or UTM zones, which use units of feet and meters, respectively. They are frequently referenced to a global geographic coordinate system, as in lat/long, like WGS84, which uses units of degrees.
As you already know, ‘attaching’ a satellite jpeg requires you to size the image using the scale command and orientate to north using rotate. To do this, however, requires you to use ‘known’ reference points in the image so you can accurately scale and rotate. Simply using scale and rotate in Acad LT without known reference points is where errors occur. (Known ref points=lat/long or northing/easting or coordinates in feet or meters.) Not mention the amount of points you use—two points minimum but using more will invariably increase accuracy—the more points you use the better.
If your reference points are in lat/long then you’ll likely need to transform them from degrees to your modelspace drawing units of either feet or meters and that’s not easy, nearly impossible, using just AutoCAD LT.
AutoCAD Map 3D and Civil 3D both have the geospatial capabilities to handle satellite imagery, Acad LT, not so much. M3D/C3D can not only scale and rotate but can also geolocate the image the correct x- and y-distance from 0,0,0, or the origin, due to the program’s built-in Coordinate System library.
Acad LT is OK, but if you want to do something like get ‘accurate’ scale on satellite images, you’ll need more horsepower.
Chicagolooper