_____________________________________________________________________ CN NORMALISE the CCF Sub to normalise a CCF by the no. of common non-zero points. The MASKed file contains NN0 non-zeros, packed with zeros up to NPTS - so the CCF must be divided by a factor adjusted to represent the no. of common non-zeros at any given shift. max correlation (auto-corr) adjusted to unity. ______________________________________________________________________ SADSPT.LOG 24-OCT-81 TYPE OPTIE 24-OCT-1981 20:54:26.90 >>>CN OPTION CN OPEN FILE CONTAINING REAL DATA WITH CCF TYPE FILENAME (<CR> FOR DEFAULT) FILIR=REAL There are 3 maps in the file Reading from the file 3 rows of 1024 pixels in R4 format TYPE MAPNUMBER OF INPUT DATA MAPIR=3 TYPE MAPNUMBER OF OUTPUT NORMALISED DATA MAPOR=4 File extended to map 4 _____________________________________________________________________