XMM-Newton Science Analysis System


imgrad (tools-1.68.1) [xmmsas_20230412_1735-21.0.0]

Output Files

1. Two FITS datasets, each containing a 2-dimensional image array in the primary extension, the same size as the input array and containing all of the keywords (except those pertaining to DSS) of the input. Both images are of datatype 32-bit real. If outputstyle=`cartesian', the two output images store the x and y components of the gradient; if outputstyle=`polar', the two output images store the magnitude and azimuth of the gradient.