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ELECTRONIC NEWSLETTER OF THE EUVE OBSERVATORY Vol 2, No.5 8/10/92
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EUVE CONTINUES SKY SURVEY
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The EUVE observatory is now in the second week of the sky survey.
All instruments and the spacecraft continue to operate nominally.
EUV sources are being detected on a regular basis.
The initial processing of the first week of sky survey data re-
vealed a timing offset between the telemetry and the attitude
solution, resulting in source positions with a systematic offset
of a tenth of a degree. This has now been corrected and the
first week is being reprocessed.
The first new EUV sources have now been detected in the sky sur-
vey data. One of the new deep survey sources is located in the
same field of view as a previously reported ROSAT WFC source. The
new source is of similar intensity as the ROSAT WFC source.
Several of the EUV sources observed so far have proved to be dou-
ble.
Count rates observed by EUVE appear to be significantly higher
than the reported count rates from the ROSAT WFC for many
sources. This is not fully understood at this time.
The moon was imaged in the sky survey detectors, including the
long wavelength scanner. The count rates are considerably lower
than the modeled predictions. As a result the moon will cause
less contamination than feared, and will not result in high count
rate shutoff of the detectors. The moon was also used to map
residual stray light and leaks out of field of view. There were
no surprises.
Calibration data from AU Mic are being analyzed. The source
flared strongly twice during the calibrations. Many spectral
lines were detected in both the short and long wavelength spec-
trometers so that wavelength calibration will be possible using
this data.
AR Lac and II Peg were both well observed during the calibrations
and the data are being analyzed.
At the Friday science team meeting there was much discussion of
the very low backgrounds seen in the detectors and implications
for models of emission from the interstellar medium. Initial
analysis of the scanning spectrometer data by Vallerga and Jelin-
sky are encouraging also and indicate that the spectrum of the
background obtained during the sky survey will be scientifically
very interesting.
EUVE BIBLIOGRAPHY AVAILABLE
---------------------------
The complete bibliography of EUVE papers from the Center for EUV
Astrophysics is now available from the Public Archive via ftp.
The file EUVE_bib is a listing, in troff format, of all the EUVE
papers, categorized by subject.
To request one or more papers, e-mail editorial@cea.berkeley.edu,
giving your postal address and the number(s) of the paper(s) you
want from the list.
Due to a transcription error, the FTP address for the EUVE ar-
chive which appeared in the last Newsletter was incorrect. To
reach the anonymous FTP site, ftp to
ftp.cea.berkeley.edu
At the "Name" prompt, type (excluding the quotes) "anonymous",
and for a password please type in your e-mail address. The pass-
words used are logged, enabling us keep a record of those who
have accessed the facility, and to deal with any queries or prob-
lems more promptly. The FTP site is currently shared by the EUVE
Archive and the EUVE Guest Observer Program: information pertain-
ing to both of these may be retrieved from the same site. If you
are unfamiliar with FTP (File Transfer Protocol), a list of
available commands may be obtained by typing (again, omitting the
quotes) "help" or "?". To access the Archive directory, change
directory to pub/archive ("cd pub/archive"). The contents of the
archive may be listed by typing "ls".
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The EUVE Electronic Newsletter is issued by the Center for Ex-
treme Ultraviolet Astrophysics, University of California, Berke-
ley. The opinions expressed are those of the authors. Publish-
ers: Roger F. Malina, C. Stuart Bowyer, Managing Editor: Camille
Trentacoste. Funded by NASA Contracts NAS5-30180 and NAS5-29298
Send newsletter correspondence to: pub@cea.berkeley.edu (Internet)
EUVE Public Archive via FTP: ftp.cea.berkeley.edu, pub/archive
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The EUVE Project is managed by NASA's GSFC. The Project Manager
at GSFC is Mr. Frank Volpe, the Project Scientist is Dr. Yoji
Kondo, the Deputy Project Scientist is Dr. Ronald Oliversen. The
NASA Headquarters EUVE Program Scientist is Dr. Robert Stachnik
the Deputy Program Scientist is Dr. Derek Buzasi, the Program
Manager is Mr. John Lintott. Information on the EUVE Guest
Observer Program is available from: Dr. Yoji Kondo, Mail Code 684
GSFC, Greenbelt, MD 20771 (301)286-6247; euve@stars.SPAN.NASA.GOV
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