SYNOPSISmRotate [-d level] [-s statusfile] [-r rotang] in.fits out.fits [ra dec xsize [ysize]]
DESCRIPTIONRotates a FITS image by an arbitrary angle. This module is meant for quick-look only; it is not flux conserving.
- -d level
- Print out additional debugging information (level can be 1-3)
- -s statusfile
- Output and errors are written to statusfile instead of stdout.
- -r rotang
Provide an angle (in degrees) to rotate the image.
- Input FITS image.
- Path to output (rotated) FITS image.
- ra dec xsize
- Center location and width (in degrees) of output image - optional. By default, entire input image area will be included in output image.
Height (in degrees) of output image, if a new center location and width are provided. Optional - defaults to xsize.
Output file will contain the same image as the input file, but rotated by rotang degrees. If a new center location and width were provided, the output image will be the "subimage" covering that area.
- [struct stat="OK"]
- No status file name given
- Cannot open status file: statusfile
- No rotation angle given
- Rotation angle string is invalid: 'rotang'
- No debug level given
- Debug level string is invalid: 'level'
- Debug level value cannot be negative
- Invalid input file 'in.fits'
- Invalid output file 'out.fits'
- Center RA string (ra) cannot be interpreted as a real number
- Center Dec string (dec) cannot be interpreted as a real number
- X size string (xsize) cannot be interpreted as a real number
- Y size string (ysize) cannot be interpreted as a real number
- Invalid 'x' size
- Invalid 'y' size
- Location is off image
- No pixels match output area
- No pixels match input area
- wcsinit() failed
- Image file in.fits missing or invalid FITS
FITS library error
- $ mRotate -r 90 in.fits out.fits
BUGSThe drizzle algorithm has been implemented but has not been tested in this release.
If a header template contains carriage returns (i.e., created/modified on a Windows machine), the cfitsio library will be unable to read it properly, resulting in the error: [struct stat="ERROR", status=207, msg="illegal character in keyword"]
It is best for the background correction algorithms if the area described in the header template completely encloses all of the input images in their entirety. If parts of input images are "chopped off" by the header template, the background correction will be affected. We recommend you use an expanded header for the reprojection and background modeling steps, returning to the originally desired header size for the final coaddition. The default background matching assumes that there are no non-linear background variations in the individual images (and therefore in the overlap differences). If there is any uncertainty in this regard, it is safer to turn on the "level only" background matching (the "-l" flag in mBgModel.
COPYRIGHT2001-2015 California Institute of Technology, Pasadena, California
If your research uses Montage, please include the following acknowledgement: "This research made use of Montage. It is funded by the National Science Foundation under Grant Number ACI-1440620, and was previously funded by the National Aeronautics and Space Administration's Earth Science Technology Office, Computation Technologies Project, under Cooperative Agreement Number NCC5-626 between NASA and the California Institute of Technology."
The Montage distribution includes an adaptation of the MOPEX algorithm developed at the Spitzer Science Center.