IRAF V2.11BETA Release Notes
June 30, 1997


These notes are a brief summary of the modifications and additions to IRAF V2.11BETA since the last public release of IRAF, V2.10.4. More detailed release notes will be available with the release of IRAF V2.11EXPORT.

V2.11BETA is a beta test release, meaning that it is complete and has undergone basic testing, but hasn't had the minimum of severals weeks of burn-in testing required for a normal export release. To save labor we are making the beta version available only for Sun platforms (this not because we wish to favor Sun, but because the major IRAF development sites use Suns internally as their main development platform). The V2.11EXPORT release, expected to be available in several weeks after testing is complete, will eventually be available for all IRAF platforms.


Things to be aware of or watch out for:


Major package changes:

The IMAGES package has been reorganized by function into the 7 subpackages listed below.

 
      imcoords - Image coordinates package
      imfilter - Image filtering package
         imfit - Image fitting package
        imgeom - Image geometric transformation package
       immatch - Image matching and combining package
        imutil - Image utilities package
            tv - Image display utilities package
The new IMAGES package contains a total of 82 tasks, including 26 new tasks from the IMMATCH and VOL external addon packages, 6 existing PROTO package tasks, and 1 existing NOAO.PROTO package task. The undocumented IMAGES package IMDEBUG and its 6 tasks have been deleted from the IMAGES package.

This reorganization of the IMAGES package should be mostly transparent to the user and not affect any existing scripts, unless you were using any of the 6 deleted tasks. By default, the IMAGES subpackages are automatically loaded when you log in to the CL. Old parameter files will not be recognized since the package names have changed.


Major system changes:


New tasks, or old tasks moved to new packages:


 Task Name      Package                  Function

 CCXYMATCH      IMCOORDS         Four new tasks for computing and evaluating
 CCMAP                           simple astrometric plate solutions and storing 
 CCSETWC                         them in the image headers in fits-compatible 
 CCTRAN                          format.

 CCFIND         IMCOORDS         CCFIND locate objects in an image given a 
                                 celestial coordinate list and the image wcs.

 STARFIND       IMCOORDS         STARFIND automatically detects stellar objects 
                                 in a list of images.

 IMCCTRAN       IMCOORDS         Two new tasks for transforming celestial 
 SKYCTRAN                        coordinate lists and image celestial 
                                 coordinate systems from one celestial 
                                 coordinate system to another.
 
 WCSCTRAN       IMCOORDS         A new task for transforming between IRAF image 
                                 coordinate systems.

 WCSEDIT        IMCOORDS         Two unaltered former PROTO package tasks for 
 WCSRESET                        editing IRAF image coordinate systems.

 FRMEDIAN       IMFILTER         Four new tasks for doing circular/elliptical/
 FRMODE                          ring image median filtering.
 RMEDIAN
 RMODE

 IM3DTRAN       IMGEOM           The former addon VOL package task IM3DTRAN for 
                                 doing 3D image transposes.

 GEOXYTRAN      IMMATCH          A new task for transforming coordinate lists 
                                 using the results of the GEOMAP task.

 IMCENTROID     IMMATCH          Four new tasks for computing matched pixel 
 SKYXYMATCH                      lists. IMCENTROID is a modified version of the
 WCSXYMATCH                      PROTO package task of the same name.
 XYXYMATCH

 SKYMAP         IMMATCH          Two new tasks for computing geometric 
 WCSMAP                          transforms using the image coordinate system 
                                 information.

 IMALIGN        IMMATCH          Three new tasks for doing automated image
 SREGISTER                       registration. IMALIGN is a modified version
 WREGISTER                       of the PROTO package task of the same name.
 
 WCSCOPY        IMMATCH          A new task for copying the coordinate system
                                 of a reference image to a set of input images.

 PSFMATCH       IMMATCH          A new task for matching the PSFs of a set of 
                                 input images to the PSF of a reference image 
                                 using Fourier techniques.
 
 LINMATCH       IMMATCH          A new task for matching the linear intensity a
                                 scale of a set of input images to the 
                                 intensity scale of a reference image.

 IMFUNCTION     IMUTIL           The former PROTO package task for applying a 
                                 single argument function to an image.
 
 IMJOIN         IMUTIL           The former addon VOL package task for joining 
                                 same-dimensioned images along a specified 
                                 dimension.
 
 IMREPLACE      IMUTIL           The former PROTO package task IMREPLACE for 
                                 replacing bad pixels based on their value.
 
 IMTILE         IMUTIL           A modified version of the NOAO.PROTO IRMOSAIC 
                                 task for tiling same sized 2D images into a 
                                 single mosaiced image.

 EXPORT         DATAIO           Two new tasks from the external IMCNV package
                                 for exporting IRAF images to binary formats
 IMPORT                          and for importing binary files into IRAF 
                                 images.

 TEXT2MASK      PROTO            This new task appears in conjunction with a 
                                 new  pixel mask based version of FIXPIX.

 CCDMASK        CCDRED           This new task creates a pixel mask from a 
                                 CCD image.

 AIDPAR         ONEDSPEC         New parameter set for automatic line 
                                 identification for the tasks AUTOIDENTIFY, 
                                 IDENTIFY and REIDENTIFY.

 AUTOIDENTIFY   ONEDSPEC         A new task to automatically identify lines 
                                 and fit the dispersion function.

 SKYTWEAK       ONEDSPEC         Sky spectra are shifted and scaled to best  
                                 subtract sky features from data spectra.

 TELLURIC       ONEDSPEC         Telluric calibration spectra are shifted and 
                                 scaled to best divide out telluric features 
                                 from data spectra.

 ASTCALC        ASTUTIL          An astronomical calculator.

 ASTRADIUS      ASTUTIL          Finds images within a circle on the sky.

Task and package deletions:

CUBE, DUMP, GSUBRAS, MAXMIN, MKIMAGE, MKTEST: These tasks have been superseded by the equivalent tasks in the IMAGES or ARTDATA packages.

IMRED.VTEL: This package is no longer supported and has been replaced with the NSO extern package.

REGISTER: This task has been renamed to GREGISTER.

IMALIGN, IMCENTROID, IMFUNCTION, IMREPLACE, WCSEDIT, WCSRESET: Moved to the IMAGES package.


Modifications to old tasks:

Grouped by package, a list of modifications to old tasks in IRAF are summarized below.

IMFILTER:
    FMEDIAN, FMODE, MEDIAN, MODE 
        Minimum and maximum good data value parameters zloreject and zhireject 
        and a verbose option parameter were added.
    MEDIAN, MODE 
        The 64 x 64 maximum kernel size limit was removed from these tasks.

IMMATCH:
    GEOMAP
        Renamed the output parameter to database for the sake of consistency
        with other new images tasks.
 
        Changed the default value of the reject parameter from 0.0 to INDEF.
 
        Added the transforms parameter. Transforms permits the user to specify
        the names of the output database records explicitly.
 
        Added the parameter results. Results permits the user to save a summary
        of the results including a description of the transform geometry, and a
        listing of the input coordinates, the fitted coordinates, and the fit
        residuals.
 
        Added the fitgeometry parameter. Fitgeometry permits the user to 
        constrain the linear part of the fit to: 1) x and y shifts only, 2) x 
        and y shifts and rotation only, 3) x and y shifts and x and y scale 
        changes only, 4) x and y shifts, rotation, and a scale change only, 5) 
        x and y shifts, rotation, x and y scale changes only, and 5) x and 
        shifts, rotation, skew, and x and y scale changes.
    GREGISTER
        Renamed the register task gregister to emphasize that it is paired with
        the geomap task and to avoid confusion with the new registration tasks.
    GEOTRAN, GREGISTER
        Renamed the transform parameter to transforms.
 
        Added the verbose parameter.
    GEOTRAN
        Added the ability to write to a section of an existing image.
    IMCOMBINE
        The  limit of the number of images that may be combined has been
        removed.  If the number of images exceeds the maximum number  of
        open  images  permitted  then the images are stacked in a single
        temporary image and  then  combined  with  the  project  option.
        Note   that   this   will   double   the   amount  of  diskspace
        temporarily.  There is also a limitation in this case  that  the
        bad  pixel mask from the first image in the list will be applied
        to all the images.
 
        Integer  offsets  may  be  determined  from  the   image   world
        coordinate system.
 
        A  combination  of  ushort  and  short  images  now  defaults to
        integer.

        Added support for type ushort images.
 
        Added a new options for computing offsets using the image wcs.
 
        Removed the limit on the maximum number of images that can be combined.
    IMALIGN, IMCENTROID
        Renamed the images parameter to input, changed the reference parameter
        mode from hidden to automatic, and reversed the order of the reference
        and coords parameters.

IMUTILS:
    IMREPLACE
        The lower value is now rounded up for integer images so  that  a
        range like 5.1-9.9 affects pixels 6-9 instead of 5-9.
    IMSUM
        Now allows "ushort" data types.
 
TV:
    DISPLAY
        The bad pixel mask,  overlay  mask,  sample  mask,  and  overlay
        colors  parameters  and  functionality  have  been  added.   The
        "nsample_lines" parameter is now an "nsample" parameter.
 
        Bugs in the coordinate system sent  to  the  image  display  for
        cursor readback were fixed.
    IMEDIT
        If  xorder  or  yorder  are  zero  then  a  median background is
        computed for the 'a' and 'b' keys.
    IMEXAMINE
        ('a'  and  'r'):  The  fit  to  the  radial  profile  points now
        includes both a Gaussian  and  a  Moffat  profile.   The  Moffat
        profile  exponent  parameter, beta, may be fixed or left free to
        be fit.
 
        ('a' and 'r'): New estimates fo the FWHM were added to  the  'a'
        and  'r'  keys.   These  include  the  Moffat  profile fit noted
        above, a direct  measurement  of  the  FWHM  from  the  radially
        binned  profile,  and  a  Gaussian  or  Moffat fit to the radial
        enclosed flux profile.  The output from these keys was  modified
        to include the new information.
 
        ('a'  and  'r'):  The  direct  FWHM  may  be used to iteratively
        adjust the fitting  radius  to  lessen  the  dependence  on  the
        initial fitting radius value.
 
        ('k'): Added a kimexam parameter set.

        The default value of rimexam.magzero parameter was changed from
        30.0 to 25.0 for consistency with the digiphot package.
 
PROTO:
    FIELDS
        The default value for the lines parameter was changed to an open
        upper limit.

        Changed the default value of the lines parameter from "1-999" to
        "1-" so that the upper bound would be open ended.
    FIXPIX
        This  task  replaces  the  old  task  (now obsolete.ofixpix) and
        works with the more general  pixel  mask  facilities.   It  also
        provides   greater  flexibility  in  chosing  the  interpolation
        direction.

ICFIT used in various tasks:
    ICFIT
        The  :xyshow output was modified to 1) not include colon labels,
        2) print (X, Y, Y fit, Weight) instead of (X, Y fit, Y), and  3)
        the printed values are those actually used in the fit when using
        composite points (naverage not 1).

ARTDATA:
    MK1DSPEC
        Lorentzian and Voigt profiles were added and the parameters  and
        input  line  list  format were changed.  The widths are now FWHM
        instead of gaussian sigmas.
    MKOBJECTS, MKNOISE
        The default value of "ranbuf" was changed to zero.
    GALLIST
        The  default value for the minimum elliptical galaxy axial ratio
        was changed to 0.3 to cover the range E0-E7 uniformly.
    MKPATTERN
        Now allows ndim=0 to make an dataless header.
        Now allows ushort pixel type.
 
ASTUTIL:
    SETJD
        The  checking  of  the  epoch  keyword   value   was   improved.
        Previously  if  there  was  a  problem  with  the  keyword value
        (missing or malformed) the task  would  use  the  epoch  of  the
        observation.   Now  it  is  an  error  if  an  epoch  keyword is
        specified but the epoch  value  can't  be  determined.   Also  a
        leading  'B'  or  'J'  is allowed and a warning will be given if
        the epoch value is unlikely.
    ASTHEDIT
        There are new astronomical functions and input/output functions.
        The command syntax may now use "=" as a  delimiter  as  well  as
        the whitespace.
 
        A  new parameter "update" allows protecting images and accessing
        read-only images for the purpose  of  calculating  and  printing
        quantities.
 
        The  special variable name "$I" has the value of the image name,
        $D the current date, and $T the current time.
 
        The case of no image name creates and deletes a temporary  image
        so  the  task  can  be  used  purely  as  a  calculator (but see
        astcalc).

CCDRED:
    CCDPROC
        The  bad  pixel fixing was modified to allow use of pixel masks,
        images, or the text file description.  Bad pixel masks  are  the
        desired  description and use of text files is only supported for
        backward compatibility.  Note that support for  the  trimmed  or
        untrimmed conversion from text files has been eliminated.
 
        Line-by-line  overscan/prescan  subtraction is now provided with
        three simple algorithms.
    COMBINE
        The  limit of the number of images that may be combined has been
        removed.  If the number of images exceeds the maximum number  of
        open  images  permitted  then the images are stacked in a single
        temporary image and  then  combined  with  the  project  option.
        Note   that   this   will   double   the   amount  of  diskspace
        temporarily.  There is also a limitation in this case  that  the
        bad  pixel mask from the first image in the list will be applied
        to all the images.
 
        Integer  offsets  may  be  determined  from  the   image   world
        coordinate system.

ECHELLE:
    ECIDENTIFY
        The  dispersion  units are now determined from a user parameter,
        the coordinate list, or the database entry.
 
IMRED Spectral Packages:
    DOARGUS, DOFIBERS, DOHYDRA
        A  sky  alignment option was added.
 
        The aperture identification can new be taken from image  header
        keywords.
 
        The initial arc line identifications is done with the automatic
        line identification algorithm.
    DOSLIT, DO3FIBER
        The initial arc line identifications is done with the automatic
        line identification algorithm.

ONEDSPEC:
    FITPROFS
        Modified  to  include  lorentzian  and  voigt   profiles.    The
        parameters  and  positions  file  format  have  changed  in this
        version.  A new parameter controls  the  number  of  Monte-Carlo
        samples used in the error estimates.
    IDENTIFY
        The  dispersion  units are now determined from a user parameter,
        the coordinate list, or the database entry.
        A new key, 'e', has been added to add features from a line  list
        without  doing  any  fits.  This is like the 'l' but without the
        automatic fitting before and after adding new features.
 
        A new key, 'b', has  been  added  to  apply  an  automatic  line
        identification algorithm.
 
        The  'x'  key  has  been  changed  to  use  the  automatic  line
        identification  algorithm.   The  allows  finding  much   larger
        shifts.
 
        The  match  parameter  may  now  be  specified  either  in  user
        coordinates or in pixels.  The default is now 3 pixels.
 
        The default threshold value has been changed to 0.
    REIDENTIFY
        The  shift  parameter  and function has been changed.  The shift
        parameter is now a maximum shift or  search  range  between  the
        target spectrum and the reference spectrum.
 
        The  task  will  now  work  with only a warning if the reference
        image is absent; i.e. it is possible to  reidentify  given  only
        the database.
 
        The  addfeatures  function will now add features before a fit if
        there are no reference database features.   Previously  features
        could  only  be  added  after an initial fit using the reference
        features and, so, required the  reference  database  to  contain
        features  for  reidentification.   This new feature is useful if
        one wants to  uses  a  dispersion  function  from  one  type  of
        calibration  but  wants  to add features for a different kind of
        calibration.
    SAPERTURES
        This task has  been  modified  to  allow  use  of  image  header
        keywords as done in the APEXTRACT package.
    SARITH
        Previously  both w1 and w2 had to be specified to select a range
        to be used.  Now if only one is specified  the  second  endpoint
        defaults to the first or last pixel.
 
        The noise band in multispec data is only copied from the primary
        spectrum and not modified.  This is a kludge until the noise  is
        handled properly.
    SCOPY
        Previously both w1 and w2 had to be specified to select a  range
        to  copy.   Now  if  only  one  is specified the second endpoint
        defaults to the first or last pixel.
    SPECPLOT
        The  scale and offset parameters may now be a value, a filename,
        or and image header keyword.
 
        The 'f' key was added to toggle between world and logical  pixel
        coordinates.
    SPLOT
        The profile fitting  and  deblending  was  expanded  to  include
        lorentzian  and  voigt  profiles.   A new parameter controls the
        number of Monte-Carlo samples used in the error estimates.
    RSPECTEXT
        The task now automatically senses the presence of a header.

APEXTRACT:
    APALL, APSUM, APNOISE, APNORMALIZE, APSCATTER, APTRACE,
    APRECENTER, APRESIZE, APMASK, APFIND, APFLATTEN
        The  "apertures"  parameter  can be used to select apertures for
        resizing, recentering, tracing, and extraction.  This  parameter
        name   was  previously  used  for  selecting  apertures  in  the
        recentering algorithm.  The new parameter name for this  is  now
        "aprecenter".
    APALL, APSUM
        The "nsubaps" parameter now allows onedspec and  echelle  output
        formats.   The  echelle  format is appropriate for treating each
        subaperture as a full echelle extraction.
    APALL
        The  aperture  ID  table information may now be contained in the
        image header under the keywords SLFIBnnn.
    APSUM
        The dispersion axis parameter was  moved  to  purely  a  package
        parameter.
 
        As  a  final step when computing a weighted/cleaned spectrum the
        total  fluxes  from  the  weighted  spectrum  and   the   simple
        unweighted   spectrum   (excluding  any  deviant  and  saturated
        pixels) are computed and a "bias" factor of  the  ratio  of  the
        two  fluxes  is  multiplied  into  the weighted spectrum and the
        sigma estimate.  This makes the total fluxes the same.  In  this
        version  the  bias  factor  is recorded in the logfile if one is
        kept.  Also a check is made for unusual bias  factors.   If  the
        two  fluxes  disagree  by more than a factor of two a warning is
        given on the standard output and the logfile with the individual
        total  fluxes as well as the bias factor.  If the bias factor is
        negative a warning is also given and no bias factor is  applied.
        In  the  previous  version  a negative (inverted) spectrum would
        result.

RV:
    RVIDLINES, RVREIDLINES
        These tasks now work in the units of the input spectra.
    FXCOR
        The input spectra are converted to Angstroms for the
        crosscorrelation and analysis.  Thus the velocities will
        be correctly computed regardless of the units of the
        input spectra.


Parameter file changes:

In the tables below each parameter change is identified with one of the following codes followed by task_name.parameter_name and the description of the change.

TV:
 n  display.nsample: replaces nsample_lines
 d  display.nsample_lines: replaced by nsample
 n  display.bpmask: specify a bad pixel mask
 n  display.bpdisplay: specify display mode for bad pixel mask
 n  display.bpcolors: specify overlay colors for bad pixel mask
 n  display.overlay: specify an overlay mask
 n  display.ocolors: specify overlay colors for overlay mask
 n  display.zmask: specify a sample mask for the zscale calculation
 c  imedit.xorder: now allows a value of zero for median background
 c  imedit.yorder: now allows a value of zero for median background
 n  rimexam.fittype: specify a profile type to fit - default is now moffat
 n  rimexam.iterations: specify number of iterations to adjust fitting radius
 n  rimexam.beta: specify beta value for moffat fitting
 c  rimexam.buffer: default value changed from 1 to 5
 c  rimexam.width: default value changed from 2 to 5
 c  rimexam.magzero: default value changed from 30 to 25
 n  wcslab.overplot: specify overplotting

DATAIO:
 n  wfits.fextn: extension to append to output disk FITS filename - default is
      fits
 n  wfits.extensions: write all images to a single FITS file ? - default is no
 n  wfits.global_hdr: prepend a global header to the FITS extensions - default 
      is yes

IMAGES:
 n  fmedian.zloreject: good data minimum
 n  fmedian.zhireject: good data maximum
 n  fmedian.verbose: verbose option
 n  fmode.zloreject: good data minimum
 n  fmode.zhireject: good data maximum
 n  fmode.verbose: verbose option
 n  median.zloreject: good data minimum
 n  median.zhireject: good data maximum
 n  median.verbose: verbose option
 n  mode.zloreject: good data minimum
 n  mode.zhireject: good data maximum
 n  mode.verbose: verbose option
 n  geomap.transforms: list of record names
 n  geomap.results: results summary file
 n  geomap.fitgeometry: fitting geometry
 d  geomap.output: renamed to database
 c  geomap.reject: changed from 0.0 to INDEF
 n  [g]register.verbose: verbose option
 d  [g]register.transform: renamed to transfo
 n  geotran.verbose: verbose option
 d  geotran.transform: renamed to transforms
 c  imcombine.offsets: now allows specifying "wcs" to compute offsets from WCS
 d  imalign.images: renamed to input
 c  imalign.reference: went from hidden to auto
 c  imalign.coords: reversed places with reference
 d  imcentroid.images: renamed to input
 c  imcentroid.reference: went from hidden to auto
 c  imcentroid.coords: reversed places with reference
 n  imheader.imlist: default image names

PLOT:
 n  graph.ltypes: specify the line types
 n  graph.colors: specify the colors

PROTO:
 n  fixpix.masks: new version specifies bad pixel masks
 n  fixpix.linterp: specify mask values for line interpolation
 n  fixpix.cinterp: specify mask values for column interpolation
 n  fixpix.pixels: list pixels that are modified
 d  fixpix.badpixels: new version does not use bad pixel region description
 c  fields.lines: default value changed from "1-9999" to "1-"

ARTDATA:
 n  mk1dspec.profile: define the profile type
 n  mk1dspec.gfwhm: replaces sigma for gaussian profile width
 n  mk1dspec.lfwhm: width for lorentzian profile
 c  artdata.randbuf: default value changed from 1000 to 0.
 c  mkpattern.ndim: allows a value of 0 for a dataless header.
 c  mkpattern.pixtype: allows ushort.
 c  gallist.ar: default value changed to 0.3.
 d  mk1dspec.sigma: replaced by gfwhm

ASTUTIL:
 n  rvcorrect.keywpars: added to define keywords used
 n  asthedit.prompt: used for new calculator option
 n  asthedit.update: update the header
 n  asthedit.oldstyle: to allow backward compatibility

APEXTRACT, IMRED spectral packages:
 n  apnoise.apertures: select apertures to be used
 n  apfit.apertures: select apertures to be used
 n  apedit.apertures: select apertures to be used
 n  apfind.apertures: select apertures to be used
 n  apnormalize.apertures: select apertures to be used
 n  apscatter.apertures: select apertures to be used
 n  apsum.apertures: select apertures to be used
 n  aptrace.apertures: select apertures to be used
 n  apresize.apertures: select apertures to be used
 n  apmask.apertures: select apertures to be used
 n  apflatten.apertures: select apertures to be used
 n  aprecenter.apertures: select apertures to be used
 n  aprecenter.aprecenter: was what was previously the apertures parameter
 n  apall.apertures: select apertures to be used
 n  apall.aprecenter: was what was previously the apertures parameter

ARGUS, HYDRA, SPECRED:
 n  doargus.crval: for automatic line identifications
 n  doargus.crdelt: for automatic line identifications
 n  doargus.skyalign: night sky alignment option
 n  dohydra.crval: for automatic line identifications
 n  dohydra.crdelt: for automatic line identifications
 n  dohydra.skyalign: night sky alignment option
 n  dofibers.crval: for automatic line identifications
 n  dofibers.crdelt: for automatic line identifications
 n  dofibers.skyalign: night sky alignment option
 n  do3fiber.crval: for automatic line identifications
 n  do3fiber.crdelt: for automatic line identifications

ARGUS, HYDRA, KPNOCOUDE, KPNOSLIT, SPECRED:
 c  params.match: default value changed to -3 (3 pixels instead of Angstroms)
 c  sparams.match: default value changed to to -3 (3 pixels instead of Angs)

ONEDSPEC, IMRED spectral packages:
 d  fitprofs.sigma: replaced by gfwhm
 d  fitprofs.function: replaced by profile
 d  fitprofs.fitsigmas: replaced by fitgfwhm
 d  rspectext.header: removed since the task now senses the header information

ONEDSPEC, LONGSLIT, IMRED spectral packages:
 n  identify.units: specify the desired units for the dispersion function
 n  identify.crval: for automatic line identifications
 n  identify.crdelt: for automatic line identifications
 n  identify.aidpars: parameter set for automatic line identifications
 c  identify.match: default value changed to -3 (3 pixels instead of Angstroms)
 c  identify.threshold: default value changed from 10 to 0.
 c  reidentify.match: default value changed to -3 (3 pixels instead of Angs)
 c  reidentify.threshold: default value changed from 10 to 0.
 n  reidentify.crval: for automatic line identifications
 n  reidentify.crdelt: for automatic line identifications
 n  reidentify.aidpars: parameter set for automatic line identifications
 n  ecidentify.units: specify the desired units for the dispersion function
 n  fitprofs.profile: define the profile type
 n  fitprofs.gfwhm: replaces sigma for gaussian profile width
 n  fitprofs.lfwhm: width for lorentzian profile
 n  fitprofs.fitgfwhm: replaces fitsigmas
 n  fitprofs.fitlfwhm: select whether to fit lorentzian profile widths
 n  fitprofs.nerrsample: allows control of the error calculation accuracy
 n  splot.nerrsample: allows control of the error calculation accuracy

CCDRED:
 c  ccdproc.fixfile: this now specifies a bad pixel mask
 c  combine.offsets: now allows specifying "wcs" to compute from WCS

RV:
 n  rvcorrect.par: Added the KEYWPARS pset declaration


Posted: 01Jul1997