...
SETUP DIRECTORIES: The first step is to enter in exposure file names for each of the fields listed. The Raw directory should point to the folder where the 2D fits files reside. The Reductions directory is where the final data and intermediary files for calibration are generated and stored. The Raw and Reduction directories may be set to any location on disk where you want these files to reside. FIREHOSE never over-writes raw data, but we advise against performing reductions in the raw data directory as a precaution.
...