Landsat MSS image data processed prior to 1978 typically contains systematic distortions caused by earth rotation and scan skew. Use Landsat MSS Deskew to remove the skew by offsetting groups of scan lines based on the relationship between the orbital characteristics and latitude-dependent earth rotation characteristics.

1. From the Toolbox, select Raster Management > Data-Specific Utilities > Landsat MSS Deskew. The Input File dialog appears.
2. Select an input file and perform optional spatial and spectral subsetting, then click OK. The Deskewing Parameters dialog appears.
3. Enter the latitude of the MSS scene center into the Latitude Degrees, Latitude Minutes, and Latitude Seconds field.
4. Select output to File or Memory.
5. Click OK.