MOPEX User's Guide - IRSA

MOPEX User’s Guide
Generated Headers List Table (header_list.tbl): This file lists the World Coordinate
Systems (WCS) information from each of the BCD image headers. The information is used to
make the Fiducial Image Frame table.
Generated FIF Table (FIF.tbl): This text file is used by later modules for putting together a
mosaicked image with specified pixel size, orientation and the final image size. The module
overwrites any input FIF table specified in the Initia l Settings.
The outputs of this module are written to the top output directory specified in the Initial
Settings.
DISCUSSION
This module creates a table specifying a unified coordinate system and the spatia l boundaries
of the output mosaic. This table is required for any interpolation or mosaicking using
MOPEX. If this module is not included, an existing FIF table has to be specified in the Initial
Settings to enable later modules to run. After this module is run once, the output FIF table can
be modified manually if desired, and used as input to subsequent runs (this is useful for e.g.
mosaicking small sections of a large dataset. See the Mosaic pipeline for more details).
Even if the input images use the CD matrix convention, the output mosaic images (and by
extension the interpolated images) will use the set of keywords CDELT1, CDELT2 and
CROTA2, since the mosaic image is undistorted.
If you plan to use the MIPS "mosaic" PRFs that are provided for PRF fitting on your mosaic,
your mosaic must be built in the same way as the ones used to derive those PRFs, that is,
from BCDs that have nearly the same orientation (close in time or taken at the same time of
year) and with a CROTA2 angle that is properly aligned with the BCDs (Use average input
orientation is recommended). All other cases would require you to make your own PRF from
your mosaic.
4.3.5 Overlap Modules: MedFilter
Command Line Equivalent: run_medfilter
Default Output Directory: /Medfilter-overlap
De pe nds On: Initial Settings; Overlap Settings
PURPOSE
Overlap (overlap.pl) 35
Overlap Modules