IUEDAC Software Changes (01-Oct-1997 to 01-Sep-1998):
09-Oct New versions of the following routines were implemented:
NORM - store more user-selected points in output vector
mode, and preserve all coefficients for polynomial fits
21-Oct The new LWR ripple correction received from Vilspa was implemented.
New versions of the following routines were implemented:
IUERIP - calculates new lwr K & alpha values,
TIMELWR - new subroutine to derive new delta(lambda) terms,
NSRIPL - calculates new ripple correction for a given image
and order number, and
MXCOR2 - corrects LWR MXHI files processed with ripple
correction version 1.0.
23-Oct A bug was discovered in TABINV which caused the output
indices to be
truncated integers when the input xarr and x parameters were both
byte or integer vectors. The new version properly returns floating
point indices.
07-Nov The following routines were modified:
VECFITS - allow 2 more vectors to be written to output FITS file
and make linearization of vectors optional rather than
required,
READMX - store the order numbers and wavelength range of
the data
extracted from the MXHI files,
MXCOR2 - modify history line in FITS header,
TIMELWR - pass order number as a floating-point value to TABINV.
11-Nov A program to remove scattered light from SWP low
dispersion NEWSIPS
spectra has been added to the experimental library. The program,
called SLBOXAR, was donated by Mark Vincent from the University
of Michigan.
25-Nov A bug was corrected in BOXCAR and SLBOXCAR. The programs were
redefining the input bckgnd parameter which could cause the
background slit position to change if the programs were run multiple
times. The new versions do not redefine the input background vector.
26-Nov New versions of FEATURE and IUESAT were implemented due to a
change in the execution of the IDL PLOTS command in IDL 5.0.
The new versions are now compatible with both IDL 4.0 and 5.0.
No other programs should be affected by the IDL change.
04-Dec Updated programs implemented:
IUEFHRD - reads FITS files with up to 50 extensions, extracts up
to 10 extension headers, and lists extension names.
FTOA - includes nu flags in output ASCII file
15-Dec READSI was modified to handle double dispersion images. The new
version uses the DISPYPE keyword to decide how to read the file
when the FITS keyword DISPERSN = 'BOTH'.
12-Jan IUEFHRD was modified to fix a bug occurring when FITS files with
non-standard extensions were read. Also, an unnecessary record of
0's was removed from the FITS-format data sets COLORS.FIT and
UITCOLORS.FIT to prevent the mssage "non-standard extension found"
when read by IUEFHRD in the program IUELCT.
16-Jan Implemented a new routine called NEWRIPPLE which
applies the
NEWSIPS ripple correction to the input net flux vector (useful
for users wanting to calibrate re-extracted SIHI data). Also,
NEW_SPLICE was modified to use the DLAM term for the new LWR
ripple correction.
19-Feb A new version of READMX was implemented which returns
all orders
from a MXHI file when /noninter is specified without the WRANGE
or ORANGE keywords. Also, clarifications were made to the prolog
of the program RDZ.
01-Apr A new version of COADD was implemented which
allows NEWSIPS MXHI files to be coadded. The previous version
was only compatible with low dispersion MXLO files.
New keywords WSHIFT and VSHIFT were added to allow wavelength
or velocity shifts (e.g., as calculated by the program CRSCOR)
to be specified to properly register coadded spectra.
Also, a new version of IUEDAF was implemented which corrects
a minor bug in how the IUEDAC keyword is added to a FITS header.
21-Apr A new version of READSI was implemented which
uses the FITS keyword DISPTYPE rather than DISPERSN to determine
how wavelengths should be extracted from the input file. (DISPTYPE
describes how the raw data was processed, whereas DISPERSN describes
how the observation was made.)
04-May IUEFHRD was modified to assume default values
for the GCOUNT and PCOUNT keywords used in some FITS
extensions.
08-May PROLOG was modified to write blank lines to separate
multiple prolog listings, and a bug was fixed which occurred when
the first directory searched had 1 found entry.
28-May An error was discovered in the startup.pro file
distributed for unix systems which prevents the Kelly and Palumbo
database from being included in the database search path. A new
version will be distributed shortly. Users interested in correcting
existing files should contact Randy Thompson at rthompson@stsci.edu.
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