msub subtracts a constant frame from many others, overwriting the frames. Note that for the common operation of bias subtraction you should probably use bsub in preference to this program because it stores the exposure time of the bias in the output file.
msub flist frame [coerce nccd nwin]
| flist | --- | Frame list |
| frame | --- | Frame to subtract. The windows of this frame must at least match or enclose those of the frame list |
| coerce | --- | Coerce the frame to be subtracted the input file formats or not. Not always possible: needs binning factors to be correctly related and window start positions to match up correctly. |
| nccd | --- | CCD number if only one to be subtracted, except that 0 means all but then allows a particular window of each CCD to be handled. |
| nwin | --- | Window number if only one to be subtracted. |
See also add, mul, sub, div, uset, cadd, csub, cmul, cdiv, mdiv dsub, bsub.
This command is a member of the classes: Arithematic, Programs.
Author: T.R. Marsh
Created: 02 Feb 2004