_____________________________________________________________________

				FO

      FIND_OFFSET is a module which finds an offset in columns between
 two rows of data by means of the location of the  peak in the cross 
 correlation or by the location of the minimum in the variance.

_____________________________________________________________________

 Enter an option:                              18-AUG-2000 23:37:18.76
 OPTION=FO                                                                     `
 FIND_OFFSET, Version 2
 Open the first SAD file
 Enter the filename:  (<CR> for default)
 FIRST_FILE=4510
 There is one map in the file
 Reading from the file
    1 rows of 1100 pixels in R4 format
 Open the second SAD file
 Enter the filename:  (<CR> for default)
 SECOND_FILE=4510B
 There is one map in the file
 Reading from the file
    1 rows of 1100 pixels in R4 format
 Enter the start column and end column for the calculation:  (default = all)
 COLUMNS=100 1000
 Enter the initial and final offsets for display:
 (default = -10 +10)
 OFFSETS=
        -10
         10
 Enter the method of calculation:
          C = Correlation (default)
          V = Variance
 METHOD=
 C
 Enter the range of pixels over which to fit:  (default = 7)
 FIT_RANGE=
          7
 The offset of the first file relative to the second =       0.1916 +-    0.0302
 The mean error of the fit =       0.0000
 Enter the plot devices:
      S   = SAOimage
     -S   = SAOimage, no erasure of screen
      G   = Graphics terminal (VT100/Retrographics and Visual 550)
      G4  = Graphics terminal emulator (Versaterm)
      X   = Xterm (default)
      F   = File

 DEVICES=
 X
  -9.545444      0.3101774E-01
   9.369514      0.3455704E-01
 More calculation with these files?  (default = Y)
 MORE_CALCULATION=N

 Enter an option:                              18-AUG-2000 23:38:49.07
 OPTION=

______________________________________________________________________