Sometimes you might wish to ignore certain receptors form your HARP reduction. For example let’s consider that I wish to reduce only the central four HARP receptors form some data. As a reminder the two places to look for information on heterodyne data reduction are:
Quick Guide – short description on how to reduce heterodyne data.
DR Cookbook – should be consulted for a more detailed description.
So to reduce data without certain receptors will require using the bad_receptors calibration option. It is possible to put a list on the command line, or use a file. Given that in this example we want to make twelve receptors “bad” (i.e. ignored) a file seems better. Create a file called $ORAC_DATA_OUT/bad_receptors.lis and space-separate a list of those you want to EXCLUDE from the reductions like this example:
H00 H02 H03 H05 H06 H07 H08 H09 H11 H12 H13 H15
Then run oracdr with the following:
oracdr -loop file -file mylist.lis -nodisplay -log sf -verbose -calib bad_receptors=FILE
This will instruct ORACDR to read a bad_receptors.lis file in ORAC_DATA_OUT, which it expects to contain space separated detectors. Alternatively provide a colon list of receptors, i.e. H02 and H08:
oracdr -loop file -file mylist.lis -nodisplay -log sf -verbose -calib bad_receptors=\"H02:H08\"