Menu for the package stsdas.contrib acoadd - Image coaddition using Lucy Method with optional acceleration. gaussfit - Least squares and robust estimation program. plucy - Multiple channel photometric image restoration. redshift - Tasks for determining redshifts and dispersions. slitless - Extract a spectrum from a direct/GRISM image pair spfitpkg - Tasks for fitting spectra with non-linear chi-square minimization vla - Spectral image reduction for VLA data. (Type "help contrib opt=sys" for more information about the contrib package).