Menu for the package `stsdas.hst_calib.wfpc.w_calib': flagflat - Flag WF/PC flat field pixels which are abnormally high or low mka2d - Create or modify an A-to-D correction reference file for WF/PC. mkphottb - Create a synthetic photometry lookup table for WF/PC. normclip - Normalize WF/PC flat fields among chips. psfextr - Extract a subsection of an image to be put in the PSF library. streakflat - Generate WF/PC flat field from streak exposures of the Earth. sharp - Measure the sharpness of star images of WFPC1/2 (Type "help w_calib option=sysdoc" for detailed information about the `w_calib' package).