... hstpolima: Reduce linear polarization data for HST instruments (currently FOC, NICMOS and WFPC2 are supported). ... Images for the three Stokes parameters (I,Q and U), the linear polarization and position angle and their error images are output. hstpolpoints: Reduce linear polarization data for HST instruments for a set of circular apertures. ... There is a web page http://www.stecf.org/software/impol/ briefly describing the package and giving example polarization maps for HST and model data. ...

... Up: Data Analysis Applications . ... Our main goals are: 1) to take advantage of the full capabilities of the AXAF, we intend to provide a more sophisticated modeling capability (i.e., models that are f ( x , y , E , t ), models to simulate the response of AXAF instruments, and models that enable ``joint-mode'' fitting, i.e., combined spatial-spectral or spectral-temporal fitting); and 2) to provide users with a wide variety of models, optimization methods, and fit statistics. ... Multiple data sets...

specpsf -- Form a longslit spectrum for a point source from many point spread function images specpsf refima psfwavs psfims sliwid pixwid subsam cenoff psfpos outpsf . ... The name of the input 2-dimensional reference image to supply the dimensions and header information for the output longslit Point Spread Function (PSF) spectrum image. psfwavs = "" [table file name] . ... The centre of the Point Spread Function in each input image is determined by centroiding and the slit is placed over the image. ...