In the list to the left of Earth Model, select from the following the projection type you want:
Pixel
UTM (Universal Transverse Mercator)
Long/Lat
Meter
SPCS (State Plane Coordinate System)
Other
In the box to the right of Earth Model, enter the projection string according to the projection type you selected.
Note: When you select UTM, SPCS, or Other, additional windows may appear in which you select the parameters to define the projection. You can also click More to open the window relevant to your selection. Select the parameters you want, and then click Accept.
To select how to display the coordinates of the mosaic file, in the Bounds list, select from the following the coordinate system you want:
Geocoded: Display the coordinates as easting and northing
Geographic: Display the coordinates as longitude and latitude
If necessary, you can make changes to the values in the boxes beside Upper left and Lower right based on the selected coordinate system.