asnphot -- plot magnitude as function of subpixel position
calnicb style association input file with list of images to be processed and
star to be used for the photometry. This number corresponds to the
stars marked with the asnalign task.
- annulus, dannulus, apertures
parameters passed to qphot
optional ASCII output file which lists subpixel position and magnitude.
Calls "qphot" to perform photometry on the same star in each image
of an association. The results are plotted as a function of the sub-pixel
position of the star center. The task requires that "alignasn" has
been run on the association in order to define the stars to be
used and in order to measure accurately the shifts between images.