.help revisions Jan00 immatchx
.nf
immatchx$src/ximcoords/t_ccmap.x
        Fixed a bug in the refpoint = "coords" option that could produce a
        totally inaccurate tangent point estimate if the image spanned 
        ra = 0 hours due to coordinate wrap around. (7/20/01 Davis)

immatchx$
        Added the psfmatch task to the package to fix: 1) a floating point error
        in the replace algorithm gaussian fitting routines that occurs if the
        argument to the log function is exactly 0.0, and 2) a symmetry error
        in the convolution code that would produce a corrected psf that was
        flipped in x and y if the psf matching kernel does not have mirror
        symmetry. The matching kernel itself is correct and can be used directly
        with the fconvolve task or rotated 180 degrees and fed back into
        psfmatch. (5/15/01 Davis)

immatchx$lib/geomap.h
immatchx$src/geomap.par
immatchx$src/ccmap.par
immatchx$src/ximmatch/t_geomap.gx
immatchx$src/ximmatch/t_geomap.x
immatchx$src/ximcoords/t_ccmap.x
immatchx$src/ximtools/geogmap.gx
immatchx$src/ximtools/geogmap.x
immatchx$src/ximtools/geofit.gx
immatchx$src/ximtools/geofit.x
immatchx$src/ximtools/geogmap.h
immatchx$src/ximtools/geograph.gx
immatchx$src/ximtools/geograph.x
immatchx$src/ximtools/geomap.key
immatchx$src/ximtools/coomap.key
immatchx$src/doc/geomap.hlp
immatchx$src/doc/ccmap.hlp
	Added a new parameter maxiter to the geomap and ccmap tasks. Maxiter
	defines the maximum number of rejection iterations and has a default
	value of 0 for no rejection.

	Changed the default value of reject from INDEF to 3.0.
	(05/01/01 Davis)

immatchx/src/ximcoords/t_ccmap.x
immatchx/src/ximmatch/t_geomap.gx
immatchx/src/ximmatch/t_geomap.x
immatchx/src/ximtools/geofit.gx
immatchx/src/ximtools/geofit.x
immatchx/src/ximtools/geogmap.gx
immatchx/src/ximtools/geogmap.x
immatchx/src/ximtools/geogmap.h
immatchx/src/ximtools/geograph.gx
immatchx/src/ximtools/geograph.x
immatchx/src/ximtools/geomap.key
immatchx/src/ximtools/coomap.key
	Added a :order command to ccmap and geomap so that the user can
	change all the orders at once. (10/6/00 Davis)

	Modified the error checking to fix a segvio problem which occured
	in ccmap and geomap if the number of points was too few for a good
	fit and verbose was set to no. (10/6/00 Davis)

immatchx/
	Added geomap to the package. (10/6/00 Davis)

immatchx/src/ximcoords/t_ccmap.x
immatchx/src/ximcoords/t_skyctran.x
immatchx/src/ximcoords/skyctran.x
        Changed the name of the skyctran task sk_copy to sk_copytran and the
        name of the skywcs routine sk_cscopy to sk_copy.

        Changed the names of the sk_getstr and sk_setstr routines to sk_stats
        and sk_sets. (17/3/00)

immatchx/src/imcctran.par
immatchx/src/ximcoords/t_imcctran.x
immatchx/ximtools/skywcs.x
        Added support for doing coordinate transformations accurately on
        images with non-zenithal projections where rotating the CD matrix
        does not work accurately.

        Added a new parameter longpole to the imcctran  task. If longpole =yes
        then coordinate transformations with zenithal projections will be
        rotated using longpole rather than the CD matrix. (2/7/00 Davis)

immatchx/
	Package reorganized to include only tasks which have bug fixes
	since 2.11.3 was released. (2/7/00, LED)

immatchx/ximtools/skywcs.x
        Incorrect values for the epoch of observation were being computed
        and printed by tasks like skyctran and imcctran if: 1) the input
        coordinate system was being read from an image,  and 2) the input
        coordinate system was galactic. The problem was that the epoch was
        being converted to MJD twice instead of once resulting in strange
        epoch values. Unless a proper motion correction was being computed
        this problem should have little practical effect although it is
        disturbing to odd units in the file headers. (1/31/00, LED)
.fi
.endhelp
