... 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. ...

Next: Pipeline Calibration for STIS . ... Previous: HST Paper Products: A New Way to Look at HST Data . ... This simplifies enormously the data reduction procedure and allows the user to interpret high-quality data correctly. ... This may result in confusion about basic instrumental parameters, the precision of the set-up, the amount and distribution of calibration frames which are required and finally the assumptions on which the data reduction procedure should rely. ...

specinholucy -- Extract point source spectra from longslit spectrum image with inhomogeneous background spectrum using an iterative technique based on Richardson-Lucy restoration specinholucy inpima errima dqima poitab Rootab poi_back bakima bakerr bakdq psfima psfmeth psfb interpol posmeth icsum skernel niter epspoi epsbac ntrial seed dqlim verbose . ... The name of the input longslit spectrum image. errima = "" [file name] . ... Point sources and background spectra NOT converged !- ...