INP
Input file. This file is modified in-place, so it should be a standard VICAR
file, not a dual-label file.
MINI_FILE
The file to read containing the mini-header. Generally this would be the .dat
file supplied to PDS by the MMM instrument, in which case the offset would be
zero.
MINI_OFFSET
Generally zero, but present in case the mini-header is somewhere else in the
file.
ZSTACK
ZStack images have slightly different formatting in their mini-header. If this
is a zstack image, turn on this keyword in order to parse the header correctly.
MISSION
If MISSION is -m20, add the zoom value to the articulation device state.