March 1995                                 Volume 3, No. 3


IUE DATA ANALYSIS CENTER  NEWSLETTER



               
This is an electronic  newsletter  edited  by the IUE Data
Analysis Center (IUEDAC)intended to inform the numerous remote
and local users of the IUEDAC software of recent 
software updates and project changes.




 ASTRONOMY EDUCATION WITH IUE 

Are you using IUE data to help teach astronomy at the 
college level or in elementary, middle, or high school?  
Do you have a successful IDEA (Initiative to Develop 
Education through Astronomy) proposal using IUE data?  
We would like to know and also to offer our support.  
We would also like to help advertise the availability 
of IUE-related teaching materials and help with distribution.
If you are working on a project or are interested in 
learning about what others are doing with IUE data, 
please contact Cathy Imhoff (301-794-1470, or
imhoff@iuegtc.gsfc.nasa.gov). 

cli
 
IUE IMAGE PROCESSING NEWS
  

Because IUE now has two processing systems running, 
there has been some confusion about how current images
(those recently obtained with IUE) are handled.  Newly 
obtained images are still being processed with IUESIPS. We
plan to continue to process new data with IUESIPS 
until the expected end of operations at the end of September 
1995. 

There have been very few changes to IUESIPS in the 
last 5 years.  The most recent change was an update of
the wavelength calibration at both NASA and VILPSA on 
June 11, 1993.  Changes prior to that date are given
in a "Chronology of Modifications to IUESIPS Output 
Products: 1985-1993" in NASA IUE Newsletter No. 50.

Now that NEWSIPS processing for the Final Archive of 
the SWP and LWP low dispersion data taken between 
1978 and 1990 is essentially complete, the next 
dataset to be processed for the Final Archive will be the SWP 
low dispersion images taken between 1990 and 1995.  
The calibrations for this portion of the SWP low 
dispersion dataset will be available in about 2 weeks.
The calibrations for the LWP low dispersion data taken 
between 1990 and 1995 will be available near the end
of April, 1995.  After the 1990-1995 low dispersion data 
are processed for the Final Archive, it is anticipated 
that the SWP high dispersion data will be processed.  
The LWR low dispersion data will require more effort 
for calibration due to the need for two different ITFs
in the processing and unstable behavior of the detector 
during the first year of operation.  The LWR low dispersion 
calibrations will be available near the end of summer, 1995.

The NEWSIPS software package was distributed in January.
The documentatio and electronic request form reside in an 
anonymous FTP account on the IUE node. Due to legal requirements,
the software must be copied using a password that will 
be supplied upon receipt of the request form.


cli & jn


IUE REFERENCE MATERIAL

 
IUE Image Processing Manuals 

We have available copies of both the IUESIPS Image 
Processing Manual (Version 2.0) and the NEWSIPS Image 
Processing Manual (Version 1.0). Note that the NEWSIPS 
Manual was also published as NASA IUE Newsletter
No. 53.  Please contact Cathy Imhoff for copies.


 
  IUE Atlases Available 

We have two very useful IUE spectral atlases available
on request.

"IUE Ultraviolet Spectral Atlas" by C.-C. Wu et al.
    1991, NASA IUE Newsletter, No. 43.
    Plots IUE spectra, tabulates fluxes for MK standard 
    stars.


"IUE Ultraviolet Spectral Atlas of Selected Astronomical 
    Objects" by C.-C. Wu et al.  1992, NASA Ref. Publ. 
    No. 1285 Plots IUE spectra, tabulates fluxes for
    planets, variable stars, galaxies, etc. 

"Atlas of O-Type Spectra From 1200 A to 1900 A", NASA Ref. 
    Publ. 1155, by N. R. Walborn, J. Nichols-Bohlin, 
    and R. J. Panek


If you would like a copy or two, please contact Cathy Imhoff at
imhoff@iuegtc.gsfc.nasa.gov or (301) 794-1470.

Note that the "IUE Ultraviolet Spectral Atlas" by C.-C. Wu et al.
    1991, NASA IUE Newsletter, No. 43. can be accessed online
    through the IUEDAC procedure STDSTARS.

cli 

 
 IUEDAC SOFTWARE AND HARDWARE UPDATES 

    
Recent Software Changes:


22-FEB  The IUEDAC Users Tutorial has been revised and expanded,
        and has been renamed the IUEDAC Users Guide. Copies 
        are now available by contacting the IUEDAC staff or 
        via the anonymous ftp account on IUESN1.

23-FEB  An error was discovered in the version of READMX 
        implemented on Jan. 26th of this year which 
        resulted in large aperture data being extracted 
        from double aperture MXLO files, even when small 
        aperture data was requested. The problem has been 
        corrected in the new version.


rwt

  ANONYMOUS FTP UPDATES

The sun_rdaf.tar.Z and ultrix_mipsel.tar.Z files in the 
anonymous ftp account on iuesn1.gsfc.nasa.gov were 
updated on the 15th of March 1995.

pjl


 CHANGES NEEDED TO RUN THE IUEDAC SOFTWARE 
     
UNDER SOLARIS 2 

For those users running or who plan to run Solaris 2 on 
their workstation a couple changes need to be made to 
the UNIX version of the IUEDAC software package. If you 
have a version of the IUEDAC IDL software obtained after
October 1994, the procedure uixplat.pro in your 
./iuerdaf/iuelib/pro subdirectory is where the changes 
will need to be made.  The pdelete command command 
should be changed from 'lpr -r ' to 'lp '.  It does 
not appear that the remove after printing option is 
available.  Similarly the printcmd should be changed 
from 'lpr ' to 'lp '.  Hopefully when the software was 
installed, the correct print command(s) was(were) given 
in platform.pro by the person installing the software.  
To check what the print command is, type 

    print,!iueprint.com

at the IDL prompt. If there is a second print option, type

    qms
    print,!iueprint.com

at the IDL prompt.  Sorry for any inconvenience this may 
have caused.  The value of !version.arch and !version.os 
are the same on SunOS and Solaris systems.
This problem has been reported to RSI.

pjl     
                   
   
Editor:                       Dr. Michael Carini 
Contributors:                 Mr. Randy Thompson  
                              Dr. Tom Meylan
                              Ms. Pat Lawton
                              Ms. Lyla Taylor
                              Dr. Cathy Imhoff
                              Dr Joy Nichols

Web Curator:

Responsible NASA organization/official: