path: root/noao/astutil/Revisions

.help revisions Jun88 noao.astutil
.nf

t_astcalc.x
doc/astcalc.hlp
    The $D variable was changed from the old MM/DD/YY format to the post-Y2K
    YYYY-MM-DD format.  (4/6/10, MJF)

asttools/refrac.x
    A development routine for refraction correction from apparent to
    observed place.  As noted in the comments, this seems to be correct
    to first order but I don't have complete confidence that I've done
    this correctly.  It would be useful to have an independent test.
    (7/2/08, Valdes)

t_rvcorrect.x
    If a UT time is part of the date keyword it is used in preference to
    the UT keyword.  This makes use of UTMIDDLE, with the previous change,
    consistent.  (12/10/07, Valdes)

t_setairmass.x
    The UTMIDDLE keyword will now always be in date format.  This fixes
    a problem with changes of the date and insures other tasks which
    use UTMIDDLE in place of DATE-OBS will used the correct time.
    (12/10/07, Valdes)

=====
V2.14
=====

=======
V2.12.2
=======

astutil.cl
t_ccdtime.x     -
ccdb.x          -
ccdtime.par     -
mkpkg
    CCDTIME was moved to the OBSUTIL package in V2.12.  But the version in
    ASTUTIL was retained.  The change here was to have the ASTUTIL version
    point to the OBSUTIL version so that there is only one source,
    parameter file, and executable.  (4/28/03, Valdes)

=====
V2.12
=====

t_rvcorrect.x
    If imupdate=no then the image is now opened READ_ONLY.  Previously
    the image was always opened READ_WRITE requiring the user to have
    write permission on the image.  (12/14/01, Valdes)

t_setairmass.x
    Previously if DATE-OBS included the UT then that time was used and
    it was not possible to specify an alternate UT.  Now the UT keyword
    has precedence over DATE-OBS.  To allow the keyword for UT to point
    to DATE-OBS for the time the UT keyword may be specified in either
    data/time format or as hours.

    The UTMIDDLE output option will now be written in the same format as
    the keyword used for the input UT.
    (9/20/01, Valdes)

t_rvcorrect.x
    Previously if DATE-OBS included the UT then that time was used and
    it was not possible to specify an alternate UT.  Now the UT keyword
    has precedence over DATE-OBS.  To allow the keyword for UT to point
    to DATE-OBS for the time the UT keyword may be specified in either
    data/time format or as hours.
    (9/20/01, Valdes)

pdm/pdmtheta.x
    The procedure that bins the data would compute negative bins leading
    to memory corruption when the input x values are not sorted.  I made
    a fix to this which solves the immediate problem.  I didn't figure
    out the code enough to know if there is any other assumption about the
    input data being sorted.  (2/22/01, Valdes)

t_rvcorrect.x
    Task now checks if a file specified in the "files" parameter is actually
    and image and prints a warning.  See buglog 477.  (1/31/01, Valdes)

pdm/TODO	+
    Added a TODO file for suggestions for further work.
    (12/11/00, Valdes)

setairmass.par
setairmass.hlp
t_setairmass.x
airmass.x
mkpkg
    The image header keyword parameters ra, dec, equinox, st, ut,
    and the scale height parameter were added to the setairmass task. In
    the previous version of the task ra, dec, equinox, st and ut were
    hardwired to "RA", "DEC", "EPOCH", "ST", and "UT", and the scale
    parameter was hardwired to 750.0. (10/31/00, Davis)

t_ccdtime.x
doc/ccdtime.hlp
    It is now an error if time<0, time>10-000, abs(mag)>40, snr<0 or
    snr>100000.  (8/24/00, Valdes)

astfunc.x
    There was a typo in the opcode for CLPUT.  It was 10 instead of 20.
    This resulted in not branching to the I/O function evaluator and
    giving a "requires 1 argument" error.
    (6/29/00, Valdes)

doc/setairmass.hlp
    Made it clear that DATE-OBS means UT date.  (6/21/00, Valdes)

========
V2.11.3p1
========

t_setairmass.x
    Moved erract call before imunmap to avoid an incorrect error string
    (about isodate) being printed.  (10/21/99, Valdes)

astfunc.x
t_rvcorrect.x
    Added missing time.h dependencies.  (10/11/99, Valdes)

asttools/mkpkg
    Added missing dependency for astgalactic.x.  (10/11/99, Valdes)

t_astcalc.x
    There was an extra READ_ONLY immap when processing a list of images.
    Therefore when using a long list of STF format images where a file
    descriptor is opened and not closed until imunmap it was possible to
    run out of file descriptors.  This was not a problem with imh
    or fits formats.  (8/31/99, Valdes)

t_rvcorrect.x
astfunc.x
    The dates in old FITS format incorrectly are adding 1900 to the year
    where the 1900 is already added by the parsing routine.
    (8/30/99, Valdes)

=======
V2.11.2
=======

t_asthedit.x
t_astcalc.x
astfunc.x
doc/asthedit.hlp
doc/astcalc.hlp
    The epoch, julday, and mst functions now take either the old or new
    FITS style date strings.  The time argument is optional and if it is
    not specified the time from the date string is used and if neither time
    is present a value of 0h is used.  New internal variables $GMD, $GMT,
    and $GMDT for the current time Greenwich time are defined.
    (5/19/99, Valdes)

t_rvcorrect.x
t_setairmss.x
t_setjd.x
doc/rvcorrect.hlp
doc/setairmass.hlp
doc/setjd.hlp
doc/keywpars.hlp
    Converted to use dtm_decode.  Documentation updated.
    (5/19/99, Valdes)

astcalc.par
asthedit.par
asttimes.par
doc/asttimes.hlp
galactic.par
galactic.x
keywpars.par
precess.par
precess.x
rvcorrect.par
setairmass.par
setjd.par
    These files were checked for Y2K correctness.  No changes were required.
    (5/19/99, Valdes)

asttools/*
    All routines checked for Y2K correctness.  No changes were required.
    The README file had the following statement added:

    Y2K:
	Most routines work in Julian days or epochs.  If they have an input
	year it is converted to one of these forms by calling
	ast_date_to_julday.  This is the only routine that has a Y2K
	connection.  It assumes two digit years are 20th century.  These
	routines are Y2K correct.

    (5/19/99, Valdes)

doc/pdm.hlp
    Added a journal reference to the algorithm.  (4/26/99, Valdes)

astfunc.x
    The imdel function name was incorrectly set as imde.  (4/22/99, Valdes)

doc/galactic.hlp
doc/asthedit.hlp
    Fixed minor formating problem.  (4/22/99, Valdes)

doc/ccdtime.hlp
    In the formula for r(sky) was pixel area term was in the wrong place.
    (3/9/99, Valdes)

t_rvcorrect.x
    Improved error catching.  (3/5/99, Valdes)

t_rvcorrect.x
    Added code the catch a bad DATE-OBS keyword and print an informative
    error (2/21/99 MJF)

t_ccdtime.x
    For the case where SNR is very large and a time is specified the
    iteration on the magnitude might not complete.  The iteration is now
    capped at 100 and the test for convergence is now normalized.
    (11/6/98, Valdes)

t_ccdtime.x
doc/ccdtime.hlp
    1.  The calculation of exposure time given a SNR was changed from an
	interative solution to an analytic solution.
    2.  The times are printed to 0.01s.
    3.  The photometry aperture is now the rounded-up integer with a minimum
	of 9 pixels.
    (9/8/98, Valdes)

t_ccdtime.x
ccddb.x
doc/ccdtime.hlp
    1.	The database keywords can now be index by reference to the telescope,
	filter, and/or telescope.
    2.  A new filter keyword, "extinction", was added to specify the
	extinction.
    3.	The extinction is now used to fixe the previous incorrect behavior
	that used 1 mag/airmass extinction.  The old results are preserved
	by making the default extinction be 1 if missing.  However the
	database files should be updated to have correct extinctions.
    (8/19/98, Valdes)

rvcorrect.par
        Removed the KEYPARS pset from the parameter file.  The pset is
        still available to the task, but it's presence interferes with
        the task when used in CL mode since the 'ut' parameter is no
        longer queried and the pset value is used, resulting in an 
        illegal number error when getting the value (4/22/98 MJF)

t_setjd.x
    The ctod function was incorrectly declared double.  (3/10/98, Valdes)

=======
V2.11.1
=======

pdm/pdmdelete.x
    The statement "r2min = MAX_DOUBLE" was changed to "r2min=MAX_REAL"
    since r2min is declared and used as real.  (10/6/97, Valdes)

=====
V2.11
=====

pdm/pdmtheta.x
pdm/pdmthetaran.x
pdm/t_pdm.x
doc/pdm.hlp
pdm.par
    1.	The theta calculation was incorrect when there is less than 100 input
	data points.  In that case overlapping bins are used and the
	calculation failed to account for this.
    2.  Removed the debug option.
    3.  Updated help including documentation of the "pluspoint" parameter.
    (10/1/96, Valdes)

t_setjd.x
setjd.hlp
    Improved error checking and interpretation of the epoch keyword.
    If an epoch keyword is specified and the keyword is not found
    or can't be interpreted it is an error.  If the epoch is an unlikely
    value a warning is printed.  If the epoch begins with B or J (case
    insensitive) that is ok.  (8/30/96, Valdes)

rvcorrect.par
doc/rvcorrect.par
	Forgot to add the keywpars pset declaration.  (8/26/96  MJF)

astfunc.x
    Added btoi function "iresult = btoi (O_VALC(args[1])=='y'..."
    (6/3/96, Tody)

astradius.cl	+
astradius.dat	+
doc/astradius.hlp +
astutil.cl
astutil.men
astutil.hd
    A new script task, ASTRADIUS, was written that is based on ASTCALC.
    It finds and prints all images from an image list that have coordinates
    within a specified radius of a specified coordinate.  (1/24/96, Valdes)

t_astcalc.x	+
astcalc.par	+
x_astutil.x
astutil.cl
astutil.men
astutil.hd
mkpkg
doc/astcalc.hlp	+
    A new task, ASTCALC, was written that uses a greatly enhanced syntax
    from that of the original t_asthedit.  It includes assignment statements,
    simple conditional statements, and expressions without assignment.
    Variables are implemented with a symbol table.  Image, text file,
    and CL parameter I/O is done with function calls in the
    expression evaluator.
    (1/24/96, Valdes)

t_asthedit.x
asthedit.par
mkpkg
doc/asthedit.hlp
    The task ASTHEDIT was revised to use a greatly enhanced syntax.  
    Internally it is significantly different but functionally it
    is similar.  A new parameter, update, was added to allow images
    to be used which are read-only or not to be modified.  The
    task allows a null image list so that it can be used as a calculator.
    (1/24/96, Valdes)

astfunc.x	+
astfunc.h	+
    The function evaluator from t_asthedit.x was extracted to a separate
    file.  The set of functions was increased, primarily with the
    addition of I/O functions for printing, imio, fio, clio, fmtio,
    and errors.  These functions are organized in a subfunction
    procedure. (1/24/96, Valdes)

airmass.x
t_setairmass.x
    Moved the airmass procedure from t_setairmass.x to airmass.x.
    (1/23/96, Valdes)

astutil$t_obs.x
astutil$t_asttimes.x
astutil$observatory.par
    Modified to allow non-integer timezones.  (12/29/94, Valdes)

astutil$t_setjd.x
    Added an extra digit to the printed output to give times to a second.
    (6/4/94, Valdes)

astutil$t_asthedit.x
    Modified this to use the evvexpr package rather than the evexpr package
    since the former includes double precision datatypes necessary to
    maintain precision on some astronomical quantities.  (4/22/94, Valdes)

astutil$ccddb.x
astutil$doc/ccdtime.hlp
    1.	The code would not work with database entries containing whitespace.
    2.	The help was not correct in describing how the number of pixels used
	in the photometry is calculated from the seeing FWHM.
    (4/5/94, Valdes)

astutil$t_ccdtime.x
    Modified CCDTIME to use a plate scale instead of the f/ratio and to
    include an airmass term.  (10/23/93, Valdes)

astutil$mkpkg
astutil$asttools/mkpkg
    The ASTTOOLS routines are now an NOAO package library which can be
    referenced as -lasttools.  (8/19/93, Valdes)

astutil$t_ccdtime.x	+
astutil$ccddb.x		+
astutil$ccdtime.x	-
astutil$ccdtime.par
astutil$doc/ccdtime.hlp
astutil$astutil.men
astutil$mkpkg
    Revised CCDTIME to use a telescope/filter/detector database and to
    compute and print additional information.  (8/16/93, Valdes)

astutil$t_asttimes.x
    1.	The times are now always printed in the proper 24 hour interval.
    2.	Also the fix to asttimes.x fixes incorrect values produced around
	the new year.
    3.  The header parameter also suppress printing the observatory info.
	(5/27/93, Valdes)

astutil$asttools/asttimes.x
    The epoch was changed from day of the year divided by 365.25 to the
    precise J2000 Julian epoch definition.  This also has the effect
    of fixing incorrect values of JD and LMST around the new year.
    (5/27/93, Valdes)

astutil$t_rvcorrect.x
astutil$keywpars.par		+
astutil$doc/keywpars.hlp	+
    Added a pset KEYWPARS which is a duplicate of the RV package version,
    updated the RVCORRECT task to make use of this instead of using hard-
    wired image header keywords.  Previously it was possible that the astutil
    version of RVCORRECT would compute a heliocentric correction different
    from what was found by the RV package when working from image headers.
    Eventually other tasks should be modified to make use of this pset.
    (5/12/93, MJF)

astutil$t_asthedit.x
astutil$asthedit.par
astutil$doc/asthedit.hlp
astutil$x_astutil.x
astutil$astutil.cl
astutil$astutil.men
astutil$astutil.hd
    ASTHEDIT is a new task which edits image headers of astronomical images.
    In includes functions for airmass, astronomical times, precession, etc.
    (3/30/93, Valdes)

astutil$t_rvcorrect.x
    A typo in the clgstr call in the rvc_images procedure resulted in the
    input observatory name being truncated at 2 characters.  Instead
    of TY_CHAR for the lenght of the string it needs to be SZ_FNAME.
    (2/1/93, Valdes)

=======
V2.10.2
=======

astutil$astutil.par
astutil$asttimes.par
astutil$rvcorrect.par
astutil$setairmass.par
astutil$setjd.par
astutil$doc/asttimes.hlp
astutil$doc/rvcorrect.hlp
astutil$doc/setairmass.hlp
astutil$doc/setjd.hlp
    Observatory parameter redirected to package parameter.
    (2/6/92, Valdes)

astutil$t_rvcorrect.x
astutil$t_setairmass.x
astutil$t_setjd.x
    Modified to use obsimopen.  (2/4/92, Valdes)

astutil$t_obs.x
astutil$observatory.par
astutil$doc/obs.hlp
    New version of this task.  (2/4/92, Valdes)

astutil$t_setjd.x +
astutil$setjd.par +
astutil$doc/setjd.hlp +
astutil$mkpkg
astutil$astutil.cl
astutil$astutil.men
astutil$astutil.hd
    Added task to set Julian dates in image headers.
    (1/29/92, Valdes)

asttools$asttimes.x
asttools$asthjd.x
    1.  Added additional conversions from date to JD and back from
	Numerical Receipes without having to go through the epoch.
    2.  Added HJD from JD without needing to go through the epoch.
    (1/29/92, Valdes)

astutil$t_setairmass.x
astutil$setairmass.par
astutil$doc/setairmass.hlp
    1.  Changed the default action to update the image headers.
    2.  Added an update field to the show listing.
    3.  A warning is printed if show=no and update=no since this is a noop.
    (11/5/91, Valdes)

astutil$t_setairmass.x
    The hour angle was slightly incorrect because universal time, from
    the exposure time, was used instead of siderial time in computing the
    midpoint.  (8/26/91, Seaman)

astutil$asttools/*.x
    Coerced all constants with many significant digits to double precision.
    (6/24/91, Valdes)

astutil$asttools/asthjd.x
    The dummy argument t was changed to lt as declared.  (6/24/91, Valdes)

astutil$t_gratings.x
astutil$gratings.par
astutil$doc/gratings.hlp
astutil$mkpkg
astutil$astutil.cl
astutil$astutil.men
astutil$astutil.hd
    Added a new task to compute grating parameters. (3/13/91, Valdes)

astutil$t_setairmass.x
astutil$t_rvcorrect.x
astutil$t_asttimes.x
astutil$setairmass.par
astutil$rvcorrect.par
astutil$astttimes.par
astutil$doc/setairmass.hlp
astutil$doc/rvcorrect.hlp
astutil$doc/astttimes.hlp
    Updated to use observatory parameter.  (11/19/90, Valdes)

astutil$t_obs.x +
astutil$x_astutil.x
astutil$mkpkg
astutil$astutil.cl
astutil$astutil.men
astutil$astutil.hd
    1.  A new version of the observatory task based on an observatory database
    using the new interface obsdb.x in xtools was added to the astutil
    executable.
    2.  The observatory help was revised and moved to astutil.
    3.  The observatory task itself is defined in noao and was removed
    from the astutil package definitions.
    (11/6/90, Valdes)

astutil$t_asttimes.x
    Added a modulus operations to convert any zone to the range -12 to 12.
    (9/28/90, Valdes)

astutil$t_asttimes.x
    Changed the procedure times to ast_times to avoid a name conflict in the
    HPUX port.  This is a better name anyway.  (9/8/90, Valdes)

astutil$asttimes.par
    Removed the range limits on the zone.  Zones east of Greenwich need to
    be negative to obtain the correct dates.  (6/15/90, Valdes)

astutil$doc/galactic.hlp
    Corrected comment about epoch of galactic coordinates.  Added an example
    showing how to get galactic coordinates for images containing
    equitorial coordinates.  (5/23/90, Valdes)

====
V2.9
====

astutil$setairmass.par
astutil$t_setairmass.x
    The task now precesses the coordinates to the epoch of the
    observation.  (2/2/90, Seaman)

astutil$astutil.hd
    The path to the sources to PDM was not defined correctly.
    Changed src=pdm/t_pdm.x to src=pdm$t_pdm.x. (1/28/90 Lytle)

astutil$t_setairmass.x +
astutil$setairmass.par +
astutil$doc/setairmass.hlp +
astutil$x_astutil.x
astutil$mkpkg
astutil$astutil.cl
astutil$astutil.men
astutil$astutil.hd
    Added a new task to compute and update airmass and universal time
    in image headers based on the exposure.  (5/19/89, Valdes)

astutil$asttools/asttimes.x
    The leap year was not handled correctly for the centuries in
    ast_day_of_year.  (5/11/89, Valdes)

astutil$rvcorrect.par
astutil$t_rvcorrect.x
astutil$doc/rvcorrect.hlp
     Added 'imupdate' parameter to make updating image headers with
     computed corrections an option.  (5/5/89, Fitzpatrick)

astutil$galactic.x
astutil$galactic.par
astutil$doc/galactic.hlp
astutil$asttools/astgaltoeq.x +
    GALACTIC now can transform in either direction.  (2/14/89, Valdes)

noao$astutil/t_rvcorrect.x
noao$astutil/doc/rvcorrect.hlp
    Changed the keywords and output when using images.  The observed
    velocity must now be VOBS.  The output is HJD, VHELIO, VLSR, and
    VSUN (a record of the Sun's velocity used for VLSR).  (12/14/88 Valdes)

noao$astutil/asttools/ast_galactic.x
    The galactic task was not precessing the input coordinates before
    computing the galactic coordinates.

    I changed the single precision defined constants to double precision
    and the in line constant 15 to 15.0d0.
    (9/15/88 Davis)

noao$astutil/astvorbit.x
noao$astutil/astvbary.x
noao$astutil/asthjd.x
    The calls to AST_COORD needed double precision arguments.  (7/26/88 Valdes)

noao$astutil/astutil.cl
    Added OBSERVATORY task to this package.  (4/12/88 Valdes)

noao$astutil/galactic.x
    The double precision variables lii and bii where being printed with
    PARGR which gives wrong results on the SUNS. (11/6/87 Valdes)

noao$astutil/*
noao$astutil/t_asttimes.x +
noao$astutil/asttimes.par +
noao$astutil/doc/asttimes.help +
noao$astutil/t_rvcorrect.x +
noao$astutil/rvcorrect.par +
noao$astutil/doc/rvcorrect.help +
noao$astutil/asttools/* +
    The package was reorganized to put algorithm procedures in the subdirectory
    asttools.  A README file describes the contents of this directory.

    New tasks ASTTIMES and RVCORRECT have been added for computing astronomical
    dates and times and radial velocity corrections.  Tools used by these
    tasks were added to the asttools library.
    (10/29/87)

noao$astutil/precess.x
    Replaced use of preces.f with new ast_precess.x.  This also involved
    changing years to double precession internally. (10/28/87 Valdes)

noao$astutil/Revisions
    Valdes, May 26, 1987
    1.  Revisions file started.

    Lytle, May 28, 1987
    2. Installed PDM in astutil.
.endhelp