MOPEX Online Manual
| Contents | ~ | Previous: Mosaic Modules: Fiducial Image Frame | ~ | Next: Mosaic Modules: Mosaic Interpolate |
Modules: Mosaic Geometry
Namelist Trigger: run_mosaic_geom
Output Directory Keyword: OUTPUT_DIR
Default Output Directory: <output_dir>
Depends on: Input files
Important Notes: This module uses a global namelist parameter called MARGIN.
Output Directory Keyword: OUTPUT_DIR
Default Output Directory: <output_dir>
Depends on: Input files
Important Notes: This module uses a global namelist parameter called MARGIN.
PURPOSE
-
This module is not run as part of the mosaicking process, but is an independent module that allows
the user to make a mosaic of a subset of the input
BCD list, e.g. if you have BCDs that cover a large area of the sky, but you just want to look at part of it. Before running this module, you should have created an FIF table of all of the BCDs by running mosaic.pl with only 1 module turned on: run_fiducial_image_frame = 1. You then need to edit the FIF by hand to specify only the area that you wish to mosaic. Once you have done this, you can re-run mosaic with only this module (Mosaic Geometry) turned on (i.e. run_mosaic_geom = 1). This will create a set of lists of all of the input files that fall within the modified FIF. You can then use these modified input lists with the modified FIF to run MOPEX as usual. See the Mosaic Introduction page for more information on mosaicking a portion of the total FIF.
INPUTS
-
This module does not have any input parameters. However, it requires
the FIF table specified in the input namelist to be edited by hand.
OUTPUTS
-
The module creates working lists of images, and associated masks and
uncertainty files, which will be used for later modules to create the mosaic
image. This list replaces the BCD image list input into the first step
of MOPEX. The filenames created are as follows:
-
geom_ImageList.txt
geom_DmaskList.txt
geom_SigmaList.txt
geom_rmask_ImageList.txt
geom_fif.tbl
geom_Tile.tbl
geom_Int_Img.tbl
DISCUSSION
This module will find all BCD, mask and uncertainty images that overlap with the modified FIF table, and create new working lists of images which can be used by the later modules to make a smaller mosaic image.For example, the initial FIF table format is as follows:
\char comment = Output from Mosaic_INT \char Date-Time = Mon Dec 11 13:43:14 2006 \char PROJTYPE = 'TAN' \real CRVAL1 = 202.475943 \real CRVAL2 = 47.121941 \real CRPIX1 = 337.460717 \real CRPIX2 = 274.744978 \real CROTA2 = -152.298200 \int NAXIS1 = 674 \int NAXIS2 = 548 \real CDELT1 = -0.000333000 \real CDELT2 = 0.000333000 \char CTYPE1 = "RA---TAN" \char CTYPE2 = "DEC--TAN"
This file can be edited to produce a sub-mosaic with a size of 100 pixel by 100 pixel and the orientation of -45.0 deg.
\char comment = Output from Mosaic_INT \char Date-Time = Mon Dec 11 13:43:14 2006 \char PROJTYPE = 'TAN' \real CRVAL1 = 202.475943 \real CRVAL2 = 47.121941 \real CRPIX1 = 337.460717 \real CRPIX2 = 274.744978 \real CROTA2 = -45.0 \int NAXIS1 = 100 \int NAXIS2 = 100 \real CDELT1 = -0.000333000 \real CDELT2 = 0.000333000 \char CTYPE1 = "RA---TAN" \char CTYPE2 = "DEC--TAN"
| Contents | ~ | Previous: Mosaic Modules: Fiducial Image Frame | ~ | Next: Mosaic Modules: Mosaic Interpolate |
