_____________________________________________________________________ CQ CQPEAK Find the Cross correlation peak. Use REAL and COMPLEX files as storage registers to contain your results ie. OPTION MAP REAL COMP CQ get the redshifts : MAPIC=3, MAPIR=4 ______________________________________________________________________ TYPE OPTIE 22-OCT-1981 04:24:47.40 >>>.CQ(TITLE=BLU 12) OPTION .CQ OPEN FILE WITH THE REAL CCF FILIR=REFT ! See BT.DOC where this was created There are 3 maps in the file Reading from the file 76 rows of 512 pixels in R4 format MAPIR=3 ROWI=1:76 OPEN FILE WITH THE COMPLEX CCF"S FILIC=COFT There are 3 maps in the file Reading from the file 76 rows of 512 pixels in C8 format MAPIC=3 PLOT=N TITLE=BLU 12 ! For the redshift log. BLU 12 MASK CHANNELS : 1 500 INTEGER SHIFT : 0 ROW MIN MAX LOCAL TOTAL 1 0.00 18.84 -0.71 -0.71 2 0.00 19.46 -0.28 -0.28 3 0.00 19.18 -0.17 -0.17 ! etc etc for 75 rows ! these are pixel shifts relative to the "templet" 74 0.00 18.46 -0.33 -0.33 75 0.00 18.82 -0.13 -0.13 76 0.00 22.12 0.00 0.00 STORE=N _____________________________________________________________________