IUE Project Electronic Newsletter
NASA-Goddard Space Flight Center (GSFC)
November 1996
Vol. 4, No. 9
DISTRIBUTION LIST: If you want your name to be added to, deleted from,
or changed on our distribution list, please send us e-mail to
news@iuedac.gsfc.nasa.gov
or send a postcard to:
IUE Data Analysis Center (IUEDAC)
Code 684.9, NASA-GSFC
Greenbelt, MD 20771
This is an electronic newsletter, edited by Jim Caplinger, primarily intended to
inform the numerous remote and local users of the IUEDAC software of recent software
updates, as well as let them know about news relating to the IUE project
in general.
IUEDAC News
It was discovered that the IUE merged observing log implemented at the
IUEDAC on August 21st, contains incorrect observation dates.
Apparently the new database system, by default, converts date entries
from GMT to local time. As a result, the dates currently displayed by
the IUEDAC routine search are off by 4 hours (i.e. 4
hours too early).
Creation of a new version of the merged log has been delayed pending
the addition of recently received data from Vilspa. The corrected and
updated version should be available next week.
- Randy Thompson
IUE Image Processing News
NEWSIPS High Dispersion Processing Status
As reported last month
we are now processing SWP high-dispersion images through the NEWSIPS
system. You are welcome to send us a list of your favorite images to
priority process. There is a NEWSIPS user request Web page at
http://hypatia.gsfc.nasa.gov/IUE/search/IUE_usrreq.html. Your request
goes into a semi-automated system, which will send you email reports on
the status of the processing. The data may be retrieved from the NDADS
system once it has been archived, usually just a few days after it has
been processed.
We are processing with the final version of the extraction slit and
associated ripple correction for SWP high dispersion. For the first month
we were processing images with a somewhat preliminary extraction slit and
ripple correction. Please be aware that these earlier processed images
(before October 1) may differ somewhat from the final version. Please contact us if you have some
of this earlier data and would like to have it reprocessed.
We hope to have the capability to process LWP high dispersion images
in the next few months. Later we will add the capability to process
LWR high dispersion images. Processing of all images for the IUE
Final Archive is to be completed by the end of September 1997.
NEWSIPS Status For Low Dispersion Images
We have continued to process NASA SWP and LWP low dispersion data as they
have become available. Out of over 38,000 images, 91 percent have been
processed and are available from the NDADS system. Some of the remaining
unprocessed images are flat field calibration images. However, some images
have not been processed because of missing database information or other
problems. We are currently working on getting those images taken care of
and processed. If you need images that seem unavailable, please contact
Cathy Imhoff (301-794-1470, or imhoff@iuegtc.gsfc.nasa.gov).
She can check on them and in many cases fix the problem so that the images
can be processed for you.
We hope to have the capability to process LWR low dispersion images in
the next few months. Stay tuned for further developments!
Publications
We have copies of the NEWSIPS Processing Information Manual
available (describing SWP and LWP low dispersion). We also have copies of
the IUE Spectral Atlas, published as NASA IUE
Newsletter No. 43, and some back issues of newsletters. Please
contact Cathy Imhoff (imhoff@iuegtc.gsfc.nasa.gov)
if you would like a copy.
- Cathy Imhoff
NDADS Anonymous Disk Change
The NASA Data Archive and Distribution Service (NDADS) anonymous disk,
where the NDADS data requests are staged, is no longer available from the
nssdca.gsfc.nasa.gov or the ncf.gsfc.nasa.gov
computers because of a change in the NDADS computer hardware
configuration. NDADS data requests can be retrieved from any of the
computers on the NDADS cluster:
Computer TCP/IP Address DECnet Address
-------------------------------------------------------
ndads.gsfc.nasa.gov *Cluster Alias* 15.251 (15611)
ndadsa.gsfc.nasa.gov 128.183.241.16 15.401 (15761)
ndadsb.gsfc.nasa.gov 128.183.36.18 15.402 (15762)
ndadsc.gsfc.nasa.gov 128.183.36.19 15.403 (15763)
ndadsd.gsfc.nasa.gov 128.183.36.20 15.189 (15549)
When copying your data from the NDADS anonymous disk using anonymous FTP
(anon_dir/data_dist/project_name) or DECnet copy
(anon_dir:[data_dist.project_name]) please be sure
to use one of the above listed computers. (Note project_name is
one of the NDADS project data-sets like IUE.) This does not effect
requests for data to be transferred to other computer nodes.
For additional questions please contact Michael Van Steenberg (Michael.E.VanSteenberg@gsfc.nasa.gov) or Nancy Oliversen (Nancy.A.Oliversen@gsfc.nasa.gov).
- Pat Lawton
Staff Changes
Dr. Terry Teays recently left the project to take up a position as
Project Scientist for Education in the Office of Public Outreach at
the Space Telescope Science Institute.
We wish him great success in his new work.
Dr. Cathy Imhoff has agreed to assist the DAC staff on a consulting
basis with the work carried out by Terry. She will also be able to
assist users with some of the more technical questions that the DAC
receives.
- Jim Caplinger
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Web Curator
Mr. James R. Caplinger, Computer
Sciences Corporation
Responsible NASA Organization/Official
Dr. Don West, IUE Operations Scientist