TRES  

This IRAF package contains most of the software needed to reduce spectra from
the TRES Echelle Spectrograph which is on the 1.5-meter Tillinghast Reflector
on Mt. Hopkins in Arizona.  Type " mkpkg <arch>" to set the architecture of
the computer on which IRAF is running.  Options are ssun for Sparc Solaris,
redhat for Redhat Linux, macosx for Apple Macintosh computers running OSX,
and macintel for Apple Macintosh computers running OS X on Intel CPUs.
Type " mkpkg update" to produce binary executables in tres$bin.<arch>
The default is bin.generic if "mkpkg <arch> is not used.

Copy to most recent tresdata tar file, currently
ftp://cfa-ftp.harvard.edu/pug/iraf/tresdata20081014.tar.gz
and install it in in your IRAF tree.

Check out http://tdc-www.harvard.edu/instruments/tres/reduce.html to find
out how to process TRES data.

For a revision history, see the NEWS file.  Recent changes include:

TRES 1.1.2 October 16, 2008
        Add new task TCHECK to avoid running quick look in raw data directory
	If TRSPROC, QTRES, CTRES, FTRES, or TTRES run in raw directory, switch
	  to quick-look directory for date, process, and return (2008-10-16)
        Check directory in TRSPROC, QTRES, CTRES, FTRES, and TTRES
        Default saveraw to yes in QTRES, CTRES, FTRES, and TTRES
        Add saveraw parameter to TRSPROC and default to no
        Fix TQUICK so it works
        Add optional datedir parameter to TDATA
	Add threshold parameter to CTRES, FTRES, CTRES, and TPROC to
	 remove cosmics better
	Add feature to TPROC to interactively refit a spectrum specified by
	  the new compstd parameter and turn it into a local shift standard
	Add compstd parameter to TTRES (2008-10-16)

TRES 1.1.1 September 25, 2008
        In TFLAT/TFLAT1, always use local normalization file if it is there
        Add nsmooth parameter to THARPLOT and default it to zero
        In TFLAT, assign saveold to sv to fix bug
        Add TFLATSET to copy FLAT images and database/ap entries to standard
        In THARSET, record original file date directory and name

TRES 1.1.0 September 19, 2008
        Add RVSAO RVRELEARN to TRELEARN
        This is a new release because RVSAO rvsao.cl has a new parameter
        to better keep track of versions and because calibration shifts work.
        Change GETTIME datediff in days to timediff in hours
        Add TDATA task to go to current raw data directory
        Add TQUICK task to go to current quick-look directory (using TRSDATE)
        Add option to use medan pixel shift in TCAL1 instead of mean with a
          new parameter, medshift in TTRES, CTRES, TPROC, TCAL, and TCAL1

TRES 1.0.8 September 12, 2008
	Add debug and xdebug parameters to TCAL, xdebug to TCAL1 for pxcsao
	 debugging mode
	TREFIT is a new task to refit calibration lines without intervention
        In CTRES, plot ThAr spectra with THARPLOT
        In TAPREF, copy reference image and database file instead of linking
	Fix bug in TMODID to avoid double shifting
	Add TRSDUMP to save all relevant pipeline task parameters in one file
	Add input pixel shift to TCAL and TCAL1

-Doug Mink, 2008-10-15