PKWATCH is used with the automatic insertion of reference pointing scans. If specified, information will be sent to the standard output about how pointing sources are chosen. This may help the user understand why expected sources are not used or other problems of the sort. It produces lots of output so it is best to redirect the program output to a file when it is used. In unix, this is done by running SCHED with a line of the form:
sched < eg3mmc.key > ptg.out