Should you wish to run sexpacman.pl manually, you can set the configuration file to point to directories that contain archival data, and set up a number of symbolic links to the image files you wish to analyze. sexpacman.pl is smart enough to skip the field correction if the link contains an _c element in its name. When all the links have been processed, you can kill the sexpacman.pl process. Alternately, you can run corr_image and SExtractor on each image file yourself. To do so, you will need to have the EXTRACT_PAR and EXTRACT_CONFIG environment variables defined to point to the directories where the rotse3.sex and rotse.par files are located. These files define the paramaters for SExtractor's analysis and the output format, respectively.
The function calls look like this:
corr_im_fast -d [linkdir] -i [image name] -r -f -b -c [caldir] -t [cimdir] -C -F fringe.fit
-T -H [thumbdir]
sex [file] -c [EXTRACT_PAR]/rotse3.sex -PARAMETERS_NAME [EXTRACT_PAR]/rotse.par
-FILTER_NAME [EXTRACT_CONFIG]/gauss_2.0_5x5.conv -CATALOG_NAME [sobj_file_name]
Similarly, if you create a list of sobj files and the appropriate idlpac.conf file, you can run idlpacman on any set of archival data to create cobj files as well as the associated log file of diagnostic parameters and the status_mon.gif image.