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ELECTRONIC NEWSLETTER OF THE EUVE OBSERVATORY
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Vol 6, No. 11 30 Nov 1996 ISSN 1065-3597
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(C) 1996, Regents of the University of California
---------------------------------------------------------------------------
Notes from the Editor
=====================
by Brett A. Stroozas, EUVE Flight Operations Manager
Welcome to the electronic newsletter for NASA's Extreme Ultraviolet
Explorer (EUVE) satellite, compiled and published monthly by the
Center for EUV Astrophysics (CEA) at the University of California,
Berkeley (UCB). The contents of this issue of the EUVE electronic
newsletter are as follows:
1. EUVE Science News
1.1 Recent EUVE Science Highlights
1.2 EUVE Episode 5 NRA
1.3 NASA SEUS Strategic Planning -- EUV?
1.4 Abstracts of Recently *Accepted* EUVE Papers
2. EUVE Science Operations News
2.1 Notice To GOs On Turn-Off of EUVE Scanner C
2.2 Public GO/RAP Data Release for 1 Dec 1996
2.3 On-Line Access to EUVE
3. EUVE Outsourced Extended Mission Status Report
3.1 Schedule Milestones
3.2 Ground System Components
3.3 FOT Staffing/Training
4. CEA Job Listings
To comment on or make suggestions for the EUVE electronic newsletter,
please send e-mail to ceanews@cea.berkeley.edu (Internet).
*********************************************
***** CEA/EUVE WISH YOU AND YOUR FAMILY *****
***** A HAPPY THANKSGIVING HOLIDAY *****
*********************************************
The EUVE observatory performed well throughout the month of Oct
1996, conducting observations of the following Guest Observer (GO) and
Right-Angle Program (RAP) targets (name and spectral type information
taken from the SIMBAD or internal CEA databases; "NOIDs" are
unidentified objects):
=======================================================================
Target EUVE Spectral Observation
Name Name Type GMT Date(s) Notes
=======================================================================
BRI 0021-02 -------- M 29 Sep - 02 Oct 1996 EGO
HD 42250 -------- G5 29 Sep - 02 Oct 1996 RAP
EQ Peg -------- M4V:+... 02 Oct - 02 Oct 1996 EGO,CO1,TCO
PN G215.5-30.8 -------- PN 02 Oct - 02 Oct 1996 RAP
EUVE J0505-181 EUVE J0505-181 NOID 02 Oct - 02 Oct 1996 RAP
Survey -------- ---- 02 Oct - 02 Oct 1996 ENG
EQ Peg -------- M4V:+... 02 Oct - 05 Oct 1996 EGO,CO1,TCO
PN G215.5-30.8 -------- PN 02 Oct - 05 Oct 1996 RAP
EUVE J0505-181 EUVE J0505-181 NOID 02 Oct - 05 Oct 1996 RAP
gamma Tau -------- K0III 05 Oct - 09 Oct 1996 EGO,TOO
SS Cyg EUVE J2142+43.6 A1pe+... 09 Oct - 23 Oct 1996 EGO,TOO,CO2
V711 Tau EUVE J0336+00.6 G9V 09 Oct - 23 Oct 1996 RAP
EUVE J0341-016 EUVE J0341-016 NOID 09 Oct - 23 Oct 1996 RAP
GD 50 EUVE J0348-00.9 WD:DAw 09 Oct - 23 Oct 1996 RAP
HU Aqr EUVE J2108-05.2 CV:AM 23 Oct - 28 Oct 1996 EGO
VY Ari EUVE J0248+31.1 K0 23 Oct - 28 Oct 1996 RAP
NGC 246 EUVE J0047-11.8 PN 28 Oct - 31 Oct 1996 EGO
EUVE J0532+510 EUVE J0532+510 NOID 28 Oct - 31 Oct 1996 RAP
beta CMa tunnel -------- Bkgd 31 Oct - 04 Nov 1996 EGO,SCN
=======================================================================
Key to Notes:
EGO = Guest Observer observation
RAP = Right-Angle Program observation
ENG = Engineering survey period to calibrate star trackers
CO1 = Observation coordinated with the XTE satellite and with
the VLA ground-based observatory
CO2 = Observation coordinated with various ground-based
observatories
TCO = Time-critical observation
TOO = Target of Opportunity
SCN = Imaging observation with scanning telescopes
1. EUVE Science News
====================
1.1 Recent EUVE Science Highlights
----------------------------------
by Dr. Pierre Chayer, CEA Scientist
DETECTION OF EXTREME-ULTRAVIOLET EMISSION FROM THE
VERY LOW MASS DWARF STAR VAN BIESBROECK 8
Drs. Jeremy Drake (Harvard-Smithsonian Center for Astrophysics),
Robert Stern (Solar and Astrophysics Laboratory, Lockheed Martin), Guy
Stringfellow (University of Colorado), Mihalis Mathioudakis (Armagh
Observatory, Northern Ireland), Martin Laming (E. O. Hulburt Center
for Space Research), and David Lambert (University of Texas at Austin)
reported the detection of quiescent EUV emission from the very low
mass dwarf star VB 8 by the Extreme Ultraviolet Explorer (EUVE) in the
Lexan/B band (65-190 Angstrom). The observation of VB 8 spanned the
period 30 Jul 1994 23:08 to 8 Aug 1994 23:59 with an effective
exposure time of about 200 ksec. This observation allowed the
detection of VB 8 as a source in the resulting EUVE Deep Survey
detector image, with a count rate of 1.98 counts/ksec. Dr. Drake and
his collaborators interpret this emission in terms of a hot coronal
plasma. Combining observations made by the Einstein and ROSAT x-ray
satellites, and EUVE between 1979 and 1994, they argue that their
results are consistent with the picture of a turbulently driven or
distributive dynamo for VB 8, rather than with a large-scale field
dynamo that appears to dominate the solar corona. For further
information about this report please refer to the original article
published in The Astrophysical Journal, Vol. 469, page 828.
EUVE OBSERVATIONS OF THE DWARF NOVA U GEMINORUM IN OUTBURST
Drs. Knox Long (Space Telescope Science Institute), Christopher
Mauche (Lawrence Livermore National Laboratory), John Raymond
(Harvard-Smithsonian Center for Astrophysics), Paula Szkody
(University of Washington), and Janet Mattei (American Association of
Variable Star Observers) reported the observation with the Extreme
Ultraviolet Explorer (EUVE) satellite of U Geminorum during the peak
and declining phases of a wide outburst. Known as one of the brightest
dwarf nova at outburst, U Geminorum was one of the brightest EUV
sources in the sky at its maximum. The observations of U Geminorum
were carried out with the spectrometers on EUVE, beginning on 28 Dec
1993 and extending through 8 Jan 1994. For further information about
this report please refer to the original article published in The
Astrophysical Journal, Vol. 469, page 841.
1.2 EUVE Episode 5 NRA
----------------------
by Dr. Ron Oliversen, EUVE Deputy Project Scientist (GSFC)
The much-delayed EUVE Guest Observer NASA Research Announcement
(NRA) for episode 5 is expected to be released in early December with
the proposal deadline, 60 days later, in early February 1997. This
NRA will not request budgetary information; however, about $400k is
expected to be available for GOs. The NRA proposal process will be
conducted by NASA Headquarters and the EUVE Project Science Office at
GSFC.
It is expected that this NRA will be the last major activity of the
EUVE Project Office at GSFC before Mission Management is turned over
to CEA/UCB in the Spring of 1997. However, until that transfer, the
Project Science Office will continue to manage the EUVE GO Program.
For additional information please contact Dr. Ron Oliversen
(oliversen@stars.gsfc.nasa.gov).
[Ed.: The following memo is by Dr. Guenter Riegler, NASA Headquarters
EUVE Program Manager, regarding the justification for this shortened
(60 days vs. the usual 90 days) NRA open period. This memo has been
included at the request of Dr. Roger Malina, CEA and EUVE Observatory
Director.]
***************************************************************
INTEROFFICE MEMORANDUM
To: H. Brinton
From: G. Riegler
Subject: Justification for 60 day open period for EUVE NRA
This memo requests that the next Extreme Ultraviolet Explorer
(EUVE) Guest Observer NRA have a 60 day open period from date of
the NRA release to proposal due date. A shorter than 90 day period
is justified since
- EUVE, now in its fifth year of operation, is a mature mission
with few and minor changes [in] its operation or data processing
procedures;
- this NRA will be the fifth, nearly identical, call for proposals
in the EUVE Guest Observer program;
- this year's NRA is three months later than previous NRAs in this
cycle, due to circumstances beyond our control;
- EUVE Guest Observers are very experienced in their use of the
EUVE data;
- most of potential proposers would already have EUVE experience;
- most of the proposed targets would have been previously observed
by EUVE due to the very limited number of targets available in
the extreme ultraviolet spectral range;
- since most of the EUVE observations have durations of a few
days, EUVE usually does 1 or 2 targets a week, thus
observational proposals and operations are rather simplified.
In addition, the 60 day open period will facilitate the transfer
of EUVE project management from Goddard Space Flight Center to the
University of California at Berkeley, as mandated by the
Cooperative Agreement signed between NASA and the University of
California at Berkeley in August 1996: the start of episode five
Guest Observer observations would coincide with the transfer of
project responsibilities, expected to occur by the end of March
1997.
Guenter R. Riegler
***************************************************************
1.3 NASA SEUS Strategic Planning -- EUV?
----------------------------------------
by Dr. Roger Malina, CEA and EUVE Observatory Director
Other than EUVE the only mission currently planned with EUV
capability is NASA's Advanced X-ray Astrophysics Facility (AXAF)
mission -- and that shortward of 150 A only. If you have ideas or
comments for future NASA EUV missions, now is a good time to speak up.
The NASA Structure and Evolution of the Universe (SEUS)
Directorate, under which falls EUVE and all future EUVE missions, is
currently doing long-range planning activities. If you are interested
in commenting on NASA's priorities and plans please refer to the
current state of these activities at
http://www.srl.caltech.edu/seus
You can contribute your comments through that WWW site or by
contacting Roger Blandford (rdb@tapir.caltech.edu), the Chair of the
SEUS Advisory Group. I am also an Advisory Group member and can
forward comments or questions. I will also be making a presentation
to the Advisory Group in Jan 1997 on NASA's EUV mission prospects and
opportunities, and would welcome material that you would like to have
presented.
1.4 Abstracts of Recently *Accepted* EUVE Papers
------------------------------------------------
Included below are abstracts of EUVE-related papers recently
*accepted* for publication. For those papers authored by CEA
personnel, the CEA publication numbers are indicated. Unless
otherwise noted, researchers may obtain preprints of the CEA papers by
sending an e-mail request containing the publication number(s) of
interest to pub@cea.berkeley.edu.
Researchers are encouraged to contribute *accepted* EUVE-related
abstracts for inclusion in future editions of this newsletter;
abstracts will also be posted under the CEA WWW site. Please send all
abstracts to archive@cea.berkeley.edu.
--------------------------------------------------------------
THE VARIABILITY AND SPECTRUM OF NGC 5548 IN THE EXTREME ULTRAVIOLET
H. L. Marshall, B.M. Peterson, J. Clavel, D.M. Crenshaw, K.T. Korista,
G.A. Kriss, J.H. Krolik, M.A. Malkan, S.L. Morris, P.T. O'Brien, and
G.A. Reichert
To appear in Astrophysical Journal.
We have measured the light curve and spectrum of NGC 5548 obtained
with the Extreme Ultraviolet Explorer (EUVE) during a period when the
galaxy was also intensively monitored with Hubble Space Telescope
(HST), the International Ultraviolet Explorer (IUE), and ground-based
telescopes. NGC 5548 was observed with EUVE for a total of about 20
days spread over a period of two months. The broad-band extreme
ultraviolet (EUV) light curve showed several factor-of-two variations
on 0.5-day time scales and one factor-of-four decrease over two days.
The normalized variability index was smaller than in the EUVE
observation of Mrk 478. Cross correlation of the EUV light curve with
the contemporaneous ultraviolet light curve indicates that the EUV and
UV/optical variations are, to within the limitations of these data,
simultaneous, although the amplitude in the EUV is twice that in the
UV.
The shape of the EUVE spectrum is consistent with a gradual
steepening from the UV through the soft X-rays. Contrary to reports
by others, we do not detect any emission lines in the EUV spectrum
which would arise in optically thin spectral models. We believe that
the reported line detections were, in fact, due to a low level fixed
pattern in the detector background. Models of the spectrum may be
constrained by the time-averaged flux in the broad-band detector
combined with the weakly constrained spectral shape. A thermal model
best describes the EUVE spectrum and its variations.
--------------------------------------------------------------
THE CLOSE DAO+dM BINARY RE J0720-318: A STRATIFIED WHITE DWARF WITH A
THIN H LAYER AND A POSSIBLE CIRCUMBINARY DISK
M.R. Burleigh, M.A. Barstow and P.D. Dobbie
To appear in Astronomy and Astrophysics.
We have analysed the EUVE spectrum of the DAO white dwarf RE
J0720-318. In contrast to the optical spectrum, which can only be
fitted with a homogeneously mixed H+He atmosphere, we find the EUVE
spectrum can only be matched with a stratified structure. The H layer
mass of 3E-14 solar masses is a factor of ~10 below upper limits from
previous EUVE observations of white dwarfs. In addition, we detect an
unprecedented HeI/H ratio of ~1 for the absorbing column along the
line of sight, implying an H ionization fraction >90% if all this
material resides in the local ISM. We suggest that, since this is a
close pre-CV binary system, most of the helium probably lies within
the immediate vicinity of the star, possibly in the form of a
circumbinary disk left over from the common envelope (CE) phase. These
results have important implications for our understanding of the
evolutionary status of DAO white dwarfs in particular, and for post-CE
binaries in general.
--------------------------------------------------------------
A FULLY IMPLEMENTED SEMI-AUTOMATED GROUND-CONTROL SYSTEM FOR THE
TERRIERS SATELLITE
N. Groleau, L. Kiser, F. Girouard, A. Hopkins, T. Morgan, S.
Chakrabarti, T. Cook, D. Cotton, and P. Dell
To appear in Proceedings of the 10th Annual AIAA/USU Small Satellite
Conference, Technical Session VI on Mission Operations, (Logan, UT:
Utah St. Press), 1996. [CEA publication #767]
In a collaborative effort, NASA Ames Research Center, the
University of California Berkeley, and Boston University have
developed ground software for a small satellite. This paper describes
the ground communication software, the data archiving and serving
system, and the data display and satellite scheduling in sufficient
detail to allow prospective small satellite operators to explore its
possible use or extension.
--------------------------------------------------------------
THE ULTRAMASSIVE WHITE DWARF EUVE J1746-706
J. Dupuis and S. Vennes
To appear in Astrophysical Journal Letters. [CEA publication #768]
We have obtained new optical and extreme ultraviolet (EUV)
spectroscopy of the ultramassive white dwarf EUVE J1746-706. We
revise Vennes et al.'s (1996a, ApJ, 467, 784) original estimates of
the atmospheric parameters and we measure an effective temperature of
46,500 +/- 700 K and a surface gravity log(g) = 9.05 +/- 0.15 (~1.2
M_sun), in agreement with Balmer line profiles and the EUV continuum.
We derive an upper limit on the atmospheric abundance of helium of
He/H = 1.3E-4 and a neutral hydrogen column density in the local
interstellar medium N_HI = (1.8 +/- 0.4)E+19 cm^(-2) from the EUV
spectrum. Our upper limit corresponds to half the helium abundance
observed in the atmosphere of the ultramassive white dwarf GD 50. We
discuss the possibility that EUVE J1746-706 represents an earlier
phase of evolution relative to GD 50 and may, therefore, help us
understand the origin and evolution of massive white dwarfs.
--------------------------------------------------------------
2. EUVE Science Operations News
===============================
2.1 Notice To GOs On Turn-Off of EUVE Scanner C
-----------------------------------------------
by Dr. Roger Malina, CEA and EUVE Observatory Director
The EUVE project at CEA has recommended that the EUVE Scanner C
(the long wavelength) imaging instrument be turned off for cost
reasons. This will reduce the number of data products that must be
produced and archived, and simplifies operations by reducing the
number of detectors that must be operated from seven to six. At the
recent meeting of the EUVE Science Advisory Board (ESAB) this
recommendation was discussed; the ESAB and GSFC Project Office
concurred with this recommendation. As a result Scanner C will be
turned off following completion of the current observations.
EUVE Scanner C will still be available to EUVE GO or RAP proposals
that require it for a scientific program. Scanner C can be turned on
for any observation for which it is justified.
The decision to turn off Scanner C has generated some controversy,
since potentially there may be serendipitous scientific discoveries
that will now be precluded. I would encourage all GOs to inform me of
any discoveries made with archival Scanner C data, since such
discoveries could provide a rationale for re-activating this
instrument.
2.2 Public GO/RAP Data Release for 1 Dec 1996
---------------------------------------------
by Dr. Nahide Craig, EUVE User Support Scientist
The table below lists the GO/RAP observations that become public on
1 Dec 1996. For each observation is given the target name, the
approximate exposure time in ksec, the GMT start/end dates, the
target's spectral type, and the data identification code (GO and RAP
data are marked accordingly). All public data sets can be ordered
from the archive via WWW and electronic or postal mail (see addresses
below). Please be sure to include in your order the DataID(s) of
interest. Processed data sets are shipped via postal mail on 8mm tape
or (if requested) on CD-ROM.
The data rights policies for observations state that Principal
Investigators (PIs) have proprietary rights to the data for a given
period of time from the date (s)he receives it. It is often the case
that long observations are broken up over many months; e.g., an
observation approved for 60 ksec may actually be observed for 10 ksec
one month, 20 ksec the next, and 30 ksec three months later. In such
cases the proprietary period begins after the PI is sent the final
piece of the completed observation.
===============================================================
Target ~Exp Observation Dates SpT DataID
Name (ksec) Start End
===============================================================
GO DATA SETS AVAILABLE 1 DEC 1996:
ER Vul 94 02 Aug - 05 Aug 1995 G0V+... go0432
ER Vul 100 29 Jul - 02 Aug 1995 G0V+... go0433
EUVE J0540-015 94 01 Nov - 05 Nov 1995 NOID go0434
EUVE J0256+080 2 05 Nov - 05 Nov 1995 NOID go0435
EUVE J0738+098 24 05 Nov - 06 Nov 1995 NOID go0436
Mrk 141 9 07 Nov - 07 Nov 1995 AGN:Sy1 go0437
Diffuse Bkgd 94 19 Oct - 23 Oct 1995 Bkgd go0438
HR 1817 100 23 Oct - 26 Oct 1995 F7V: go0439
HR 1817 96 26 Oct - 30 Oct 1995 F7V: go0440
BL Hyi 34 30 Oct - 31 Oct 1995 CV:AM go0441
EUVE J0139+099 2 31 Oct - 31 Oct 1995 NOID go0442
EUVE J0143+103 2 31 Oct - 31 Oct 1995 NOID go0443
EUVE J0205+093 2 31 Oct - 31 Oct 1995 NOID go0444
RAP DATA SETS AVAILABLE 1 DEC 1996:
1219+044 264 27 Mar - 05 Apr 1996 AGN rap0060
1227+024 132 27 Mar - 05 Apr 1996 AGN rap0061
0633+1746 4 26 Nov - 26 Nov 1995 NeutSt rap0062
EUVE J1429-38.0 372 17 Apr - 30 Apr 1996 NOID rap0063
EUVE J1434-36.3 362 17 Apr - 30 Apr 1996 NOID rap0064
3c273 260 27 Mar - 05 Apr 1996 AGN:QSO rap0065
EUVE J1429-38.0 5 06 May - 06 May 1996 NOID rap0066
================================================================
2.3 On-Line Access to EUVE
--------------------------
Listed below are the various methods for on-line access to EUVE:
o CEA World Wide Web (WWW)
URL http://www.cea.berkeley.edu/
telnet www.cea.berkeley.edu 200 (for those without a WWW browser)
o anonymous FTP
ftp ftp.cea.berkeley.edu
Name: anonymous
Password: type_your_full_e-mail_address
o anonymous gopher
gopher ftp.cea.berkeley.edu
o EUVE Electronic Newsletters
Past issues -- available via the CEA WWW site
Subscriptions -- mail majordomo@cea.berkeley.edu ("subscribe
euvenews")
Post message (moderated) to all subscribers:
mail euvenews@cea.berkeley.edu
o GI Program
Are you interested in finding out about or using EUVE data? Do
you need help in understanding EUVE data sets? Do you need help
in using the available EUVE data analysis software tools? If you
answer "yes" to any of the above, the Guest Investigator (GI)
Program at CEA can help YOU! For more information see the CEA
WWW site or contact the Archive (archive@cea.berkeley.edu).
o Public RAP
The Public Right Angle Program (RAP) is a simple and easy method
for researchers to propose for long-exposure EUVE imaging data.
For more information on the Public RAP and the simple proposal
process see the CEA WWW site or contact the EGO Center
(egoinfo@cea.berkeley.edu). Mail all proposals to
euverap@cea.berkeley.edu.
o Contact information for the EUVE Science Archive or EGO Center:
Center for EUV Astrophysics
2150 Kittredge St.
Berkeley, CA 94720-5030
510-642-3032 (voice)
510-643-5660 (fax)
archive@cea.berkeley.edu
egoinfo@cea.berkeley.edu
3. EUVE Outsourced Extended Mission Status Report
=================================================
by Brett Stroozas, EUVE Flight Operations Manager
Work continues to outsource EUVE satellite operations from GSFC to
the EUVE Platform Operations Center (EPOC) at CEA. Upon successful
completion of this operations handover will commence the EUVE
Outsourced Extended Mission (OEM), currently scheduled to begin in Feb
1997. The following sections describe some of the Oct 1996
outsourcing highlights.
3.1 Schedule Milestones
-----------------------
The following timeline of major OEM-related milestones was worked
out in Oct. Accompanying each milestone are some associated notes
that describe it.
07/01/96-
11/30/96 EPOC system integration and interface tests
One set of all the major EPOC ground system components has
been transferred as government-furnished equipment (GFE) from
GSFC to CEA. Work continues at CEA to complete integration
and preliminary interface tests.
11/18/96-
01/03/97 EPOC end-to-end testing
An informal EPOC end-to-end system test plan has been
developed. Preliminary telemetry and command testing has
begun using (remotely) the spacecraft simulator at GSFC.
Initial command tests to the spacecraft itself are scheduled
for early Dec.
12/06/96 Mission Operations Review
Since the initial OEM working group meeting in Jun, CEA has
been working to address the various issues raised by GSFC at
that meeting. All of the major issues have been resolved and
preparations are underway for a formal OEM presentation at a
Mission Operations Review (MOR) on 6 Dec. Brett Stroozas and
George Kaplan from CEA will travel to GSFC to present this
material.
01/06/97 Operational Readiness Review
Upon completion of the EPOC development and end-to-end system
testing an informal Operational Readiness Review (ORR) will be
held with GSFC to ensure that CEA has met all operational
requirements before entering into a shadow operations period
(see below).
01/06/97-
02/19/97 Shadow Operations: Scheduling
Upon successful completion of the ORR CEA will enter a shadow
operations period. During the first four weeks of this period
CEA will take over primary responsibility (with GSFC as
backup) for all spacecraft scheduling activities. GSFC will
continue to retain primary responsibility (with CEA shadowing
as backup) for real-time telemetry monitoring and commanding
operations and engineering activities. Planning for the
implementation of this handover is currently in progress.
02/03/97-
02/19/97 Shadow Operations: Commanding
In early Feb CEA will take over primary real-time operations
and off-line engineering responsibilities. GSFC will serve as
a "hot" backup during this time to ensure that CEA is
successfully flying the spacecraft.
02/27/97 OEM Completion Review
After at least two weeks of successful commanding shadow
operations (and at least six weeks of scheduling) a review
will be held with GSFC to verify that CEA has successfully
performed all spacecraft operations during the shadow period.
At this time operational control of the EUVE spacecraft will
be officially handed over from GSFC to CEA and the outsourcing
activities will basically be complete.
3.2 EPOC Ground Systems
-----------------------
Integration and test activities continued at CEA on the EPOC ground
system components. A major focal point of the efforts was the Command
Management System (CMS), which provides spacecraft command generation,
validation, and management functions. A number of the routine FDF
data products have been successfully processed through CMS, although
significant work remains.
Similar interface testing also continued with the Explorer Platform
Planning System (EPPS), which is used for scheduling spacecraft
contacts and activities. The EPPS software appears to be working as
expected, although more specific testing will occur once the CMS is
fully functional.
The first "string" for the Transportable Payload Operations Control
Center (TPOCC) -- the command and control system used to communicate
with the satellite -- was delivered to CEA on 25 Oct. TPOCC hardware
and software personnel from GSFC accompanied the string's delivery and
were able to get things up and running within a few days. Before long
real-time data was successfully flowing from the satellite through the
TPOCC system. A software procedure was also written to allow the
TPOCC system to autonomously handle unattended spacecraft contacts
during non-staffed hours; this was a major step toward the
implementation of single-shift operations, which is a major goal of
the OEM.
A few major communications milestones were also accomplished during
the month. A Mission Operations Data Network (MODNET) connection was
established by NASA Communications (NASCOM) personnel. This
connection provides a link with the GSFC Flight Dynamics Facility
(FDF), which supplies orbital and other data products necessary for
spacecraft planning and operations. FDF also began the regular
shipping of data over these lines to CEA. Work also began on the
installation of a new T1 line between CEA and GSFC. It will be over
this line that telemetry and command data are transmitted between CEA
and the satellite.
3.3 FOT Staffing/Training
-------------------------
Staffing and training activities continued for the EPOC's Flight
Operations Team (FOT). By month's end seven of the eight FOT
positions had been filled (see section 4 below for the remaining open
position), and six of the current seven FOT members had completed one
of two month's training with the incumbent Lockheed-Martin FOT at
GSFC.
4. CEA Job Openings
===================
by Cathie Jones, CEA Personnel Manager
One additional Spacecraft Controller/Scheduler position remains
open for CEA's FOT, who will operate the EUVE spacecraft during the
OEM. The following lists the job description as advertised.
Interested persons should contact Brett Stroozas
(bretts@cea.berkeley.edu; 510-643-7312) directly.
******************************
SPACECRAFT OPERATIONS POSITIONS
Multiple opportunities exist on NASA's Extreme Ultraviolet Explorer
(EUVE) satellite project. Current experience on Multi-Mission
Satellite operations is desired for all positions. Candidates will be
temporarily located at GSFC, Greenbelt, MD, until the new Explorer
Platform Operations Center is complete at the Center for EUV
Astrophysics, University of California, Berkeley. To apply, send
resume and three references to UC Personnel Office, 2200 University
Ave, Berkeley, CA 94720-3540, citing the box number (i.e.,
06-114/118-10) for the position.
Satellite Controllers ($32.6K - $40.8K)
#06-114/118-10
Experience with spacecraft data acquisition, TDRSS scheduling,
spacecraft telemetry monitoring and command. Console operations or
multimission satellite spacecraft experience is desired.
---------------------------------------------------------------------------
The EUVE Electronic Newsletter is issued by the Center for Extreme
Ultraviolet Astrophysics, University of California, Berkeley, CA
94720, USA. The opinions expressed are those of the authors. EUVE
Principal Investigators and Newsletter Publishers: Dr. Roger F.
Malina and Professor Stuart Bowyer. Newsletter Editor: Brett A.
Stroozas. Funded by NASA contract NAS5-29298. Send newsletter
correspondence to ceanews@cea.berkeley.edu.
The EUVE project is managed by NASA's GSFC: Paul Pashby, GSFC
Project Manager; Dr. Yoji Kondo, Project Scientist; Dr. Ronald
Oliversen, Deputy Project Scientist; Mr. Kevin Hartnett, Mission
Director. NASA HQ: Dr. Guenter Riegler, Program Manager.
Information on the EUVE GO Program is available from Dr. Yoji Kondo,
Mail Code 684, GSFC, Greenbelt, MD 20771 at (301) 286-6247 or e-mail
to euve@stars.span.nasa.gov.
END-----------EUVE------------ELECTRONIC---------------NEWS-------------END
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