EEEEEEEEEEE   U         U    V           V   EEEEEEEEEEE
          E             U         U     V         V    E
          E             U         U      V       V     E
          EEEEEEE       U         U       V     V      EEEEEEE
          E              U       U         V   V       E
          E               U     U           V V        E
          EEEEEEEEEEE      UUUUU             V         EEEEEEEEEEE
Vol. 7, No. 4                 30 Apr 1997                    ISSN 1065-3597
	  (C) 1997, Regents of the University of California

Notes from the Editor
   by Brett A. Stroozas, EUVE Flight/Mission Director

   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 EUVE Under New Management
    1.2 EUVE TOO to ALEXIS Transient
    1.3 New Data Service to EUVE Observers
    1.4 EUVE Observatory Contact Information
    1.5 Public GO/RAP Data Release for 1 May 1997
    1.6 Abstracts of Recently *Accepted* EUVE Papers
 2. EUVE Satellite Operations News
    2.1 UCB Assumes Operational Control of EP Spacecraft
    2.2 On-Line Access to EUVE
 3. EUVE Outsourced Extended Mission Status Report

To comment on or make suggestions for the EUVE electronic newsletter,
please send e-mail to (Internet).

   The EUVE observatory performed well throughout the month of Mar
1997, completing and/or beginning observations of the following Guest
Observer (GO) and Right-Angle Program (RAP) targets.  For each target
is listed its name, spectral type (generally from the SIMBAD
database), observation start date and time (format is GMT
day_of_year:hours:minutes), name of Principal Investigator (PI),
observation type/priority, and any relevant notes:

  Target        SpT            Start          PI         T  Notes
beta CMa        B1...   058:01:45 (27 Feb)  Cassinelli   2  EGO,COO,CFG
alpha Cen       G+...   068:01:40 (09 Mar)  Vallerga     -  CAL,MUL
EUVE J1019+157  NOID    068:01:40 (09 Mar)  Lampton      3  RAP
HD 82210        G4...   073:20:30 (14 Mar)  Simon        2  EGO
ALEXIS Trans.   NOID    077:20:40 (18 Mar)  Bloch        1  EGO,TOO
HD 82210        G4...   078:00:00 (19 Mar)  Simon        2  EGO
EUVE J1618-179  NOID    082:00:00 (23 Mar)  Lampton      2  EGO
EUVE J1627+101  NOID    082:22:15 (23 Mar)  Lampton      2  EGO
EUVE J1050-207  NOID    082:22:15 (23 Mar)  Dupuis       3  RAP
ISM Survey      ----    083:20:28 (24 Mar)  Flynn        1  EGO,ENG,CY5
OY Car          DwfNva  085:22:50 (26 Mar)  Mauche       1  EGO,TOO,SPI
alpha Car       F0II    089:04:10 (30 Mar)  Brown        2  EGO
Key to Notes:
        CAL = Science instrument calibration observation
	CFG = Observation required non-standard payload configuration
        CY5 = As yet unapproved Cycle 5 proposal target.  Due to the
                time-critical nature of this observation, Ron
                Oliversen approved observing it before official
                approval of this proposal; if the proposal is not
                approved the data will become public immediately.

        COO = Coordinated observation
        EGO = EUVE Guest Observer observation
	ENG = Engineering period to calibrate star trackers and
        MUL = Multiple pointing observation
        RAP = Right-Angle Program observation
        SPI = Spiral-dithered observation
        TOO = Target of Opportunity

** NOTE: In the 31 Mar 1997 issue of this newsletter (V7,#3) the PI
for the T Leo observation was incorrectly listed as Mumma; in fact,
the actual PI was Howell.  We apologize for this mistake.

1. EUVE Science News

1.1 EUVE Under New Management
	by Dr. Roger Malina, EUVE Observatory Director

On 14 Mar 1997 CEA at UCB assumed all overall management and
operational control responsibilities for the entire EUVE observatory.
As of the above date both the science payload and Explorer Platform
(EP) spacecraft operations are being conducted by and at UCB.  My
congratulations to the joint GSFC/UCB team that accomplished the
relocation (a.k.a. "outsourcing") of the spacecraft operations *on
schedule and on budget*.  The EUVE Project will continue to work with
the user community in order to maximize the scientific productivity of
the EUVE observatory.

1.2 EUVE TOO to ALEXIS Transient

On 18 Mar EUVE interrupted its observing program to observe an
unscheduled Target of Opportunity (TOO) to a newly-detected EUV
transient source detected by the ALEXIS satellite.  The EUVE Flight
Operations Team (FOT) was able to begin observation of the transient
source location within two hours -- a record for EUVE -- of initial
notification by the ALEXIS team.  We hope that EUVE TOO observations
of these transient sources will help to resolve the mystery of the EUV
bursts that are being detected by the ALEXIS mission.

1.3 New Data Service to EUVE Observers

Beginning on 25 Apr the EUVE Observatory enhanced its current GO, GI,
and Archive research programs by offering a number of new computer
accounts to facilitate remote processing of EUVE data.  The service
includes access to EUVE computer systems and ONE GIGABYTE of disk
space.  Interested EUVE users should contact the GO/GI/Archive Program
at the address indicated below.

1.4 EUVE Observatory Contact Information

In response to the change in EUVE management mentioned above, the
following is an updated list of contact personnel on the EUVE Project.

     Center for EUV Astrophysics
        Telephone:      510-643-7043

     EUVE Observatory Director: Dr. Roger F. Malina
        Telephone:      510-643-5636

     EUVE Observatory Deputy Director: Dr. John Vallerga
        Telephone:      510-643-5666

     EUVE Science Advisory Board (Chairman): Dr. Steve Howell
     	Telephone:	307-766-6150

     EUVE Project Manager: Dr. Michael Gunter
        Telephone:      510-642-0835

     CEA Business Manager: Mr. Kevin Kaier
        Telephone:      510-643-5640

     EUVE Flight/Mission Director: Mr. Brett Stroozas
     	Telephone:	510-643-7312

     EUVE Scheduling Information: Dr. Brian Flynn
        Telephone:      510-642-4224

     EUVE User Support Information: Dr. Nahide Craig
        Telephone:      510-643-7273

     EUVE GO/GI/Archive Program Information:

1.5 Public GO/RAP Data Release for 1 May 1997
        by Dr. Nahide Craig, EUVE User Support Scientist

   The table below lists the GO/RAP observations that become public on
1 May 1997.  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.  See the UCB-CEA WWW site (address
below) for a complete list of publicly available EUVE data products.

   Target        ~Exp      Observation Dates      SpT      DataID
    Name        (ksec)    Start           End


                        Cycle 4 Targets

  LB 9802         178     22 Aug - 28 Aug 1996    BlueStar go0541       
  LB 9802          56     19 Sep - 21 Sep 1996    BlueStar go0542 
  LB 9802         118     24 Sep - 29 Sep 1996    BlueStar go0543
  Comet Hale-Bopp 152     14 Sep - 19 Sep 1996    SolSys   go0544 
  Jupiter          82     21 Sep - 24 Sep 1996    SolSys   go0545
  QS Tel           23     29 Sep - 29 Sep 1996    CV:AM    go0546 
  BRI 0021-0214   176     17 Jul - 23 Jul 1996    Star     go0547
  BRI 0021-0214     2     27 Jul - 27 Jul 1996    Star     go0548 
  BRI 0021-0214    67     29 Sep - 02 Oct 1996    Star     go0549

                        Cycle 3 Targets

  Algol            49     01 Feb - 02 Feb 1996    B8V      go0550 
  Algol           133     02 Feb - 07 Feb 1996    B8V      go0551 
  BH CVn          129     12 Feb - 17 Feb 1996    F2IV     go0552 
  BH CVn          129     17 Feb - 21 Feb 1996    F2IV     go0553 
  44 Boo            7     24 Feb - 25 Feb 1996    G0V      go0554 
  44 Boo          100     26 Feb - 01 Mar 1996    G0V      go0555 
  44 Boo           46     01 Mar - 03 Mar 1996    G0V      go0556 
  PG 1234+482      62     07 Mar - 10 Mar 1996    DA       go0557 
  PG 1234+482     123     12 Mar - 16 Mar 1996    DA       go0558 
  Comet Hyakutake  90     21 Mar - 25 Mar 1996    SolSys   go0559 
  Comet d'Arrest   50     04 Sep - 05 Sep 1995    SolSys   go0560
  Comet Bradfield  46     06 Nov - 07 Nov 1995    SolSys   go0561


  EUVE J2135+00.8 272     01 Sep - 11 Sep 1996    NOID     rap0083 
  EUVE J2231+017  112     19 Sep - 21 Sep 1996    NOID     rap0084 
  EUVE J2231+017  118     24 Sep - 29 Sep 1996    NOID     rap0085 


1.6 Abstracts of Recently *Accepted* EUVE Papers

   Included below are abstracts of EUVE-related papers recently
*accepted* for publication.  For those papers authored by UCB-CEA
personnel, the UCB-CEA publication numbers are indicated.  Unless
otherwise noted, researchers may obtain preprints of the UCB-CEA
papers by sending an e-mail request containing the publication
number(s) of interest to

   Researchers are encouraged to contribute *accepted* EUVE-related
abstracts for inclusion in future editions of this newsletter and for
posting under the UCB-CEA/EUVE WWW site.  Please send all abstracts to


E. Polomski, S. Vennes, J.R. Thorstensen, M. Mathioudakis, and
  E.E. Falco
To appear in Astrophysical Journal.  [CEA publication #785]

   We report the classification of 23 new extreme ultraviolet sources
from the Lampton et al. (1997) catalog.  The optical spectra presented
identify the objects as 14 active late-type stars (including a
possible T Tauri star), three white dwarf stars, and six active
galactic nuclei (a Seyfert galaxy, a BL Lac object 1ES 1028+511 [or
EUVE J1031+508], and four quasi-stellar objects).  We have detected Ca
II absorption lines in the BL Lac object and measured its
redshift. Two of the white dwarf stars are unusually massive (M > 1.1
M_sun. Our sample of late-type stars includes five previously known
high proper motion objects (EUVE J1004+503, EUVE J2244-332A+B, EUVE
J1802+642, EUVE J1131-346) of which one is the well known flare star
TX PsA (EUVE J2244-332B). We report an unusually high level of
activity for the primary component of the TX PsA system (EUVE
J2244-332A), which may indicate flare activity. The group of late-type
stars is on average almost 3 magnitudes fainter ( ~ 13) than the
typical member of the Extreme Ultraviolet Explorer (EUVE) all-sky
survey catalog (Bowyer et al. 1994).  All Galactic and extragalactic
objects were also detected in the Rontgen Satellite (ROSAT) Position
Sensitive Proportional Counter (PSPC) survey, and most are at the
faint limit of the EUVE detectors. These identifications expand the
list of known EUV sources to 557 and increase the list of detected
extragalactic sources by nearly a third (from 22 to 28).


2. EUVE Satellite Operations News

2.1 UCB Assumes Operational Control of EP Spacecraft
	by Brett Stroozas, EUVE Flight/Mission Director

As mentioned above, the "outsourcing" of EUVE EP spacecraft operations
has been completed.  Operational control authority was officially
passed from GSFC to UCB at 22:00 GMT on 14 Mar 1997.  This huge
project, which was a joint GSFC/UCB effort, was completed on schedule
and on budget.  On behalf of the EUVE Project I would like to extend
our most sincere thanks to the many, many persons involved in this
mammoth task.

First and foremost, the Project wishes to thank those at NASA
Headquarters who provided the opportunity to attempt the EUVE
outsourcing "experiment".  We offer particular thanks to Dr. Guenter

Secondly, we wish to thank the very many persons in the different
departments (e.g., MSOCC, CMF, NASCOM, FDF, PACOR, Flight Software,
Engineering, etc.) at GSFC for laying the groundwork and/or for their
direct assistance and support in implementing the EUVE outsourcing.
Particular thanks are offered to the following:

 o To Mr. Bill Guit and his Lockheed-Martin FOT who, since launch,
   flew the EP spacecraft, and then trained their UCB counterparts to
   do the same.

 o To the development team for their hard work in developing,
   testing, and implementing the workstation-based Transportable
   Payload Operations Control Center (TPOCC) spacecraft command and
   control system.

 o To the members of the Network Control Center (NCC) for their 
   excellent support in simplifying and streamlining the spacecraft
   planning and scheduling process.

 o To the outgoing EUVE Mission Director, Mr. Kevin Hartnett, for his
   truly outstanding and super-human efforts in coordinating and
   facilitating all GSFC involvement in the great multitude of
   technical and programmatic issues.

Finally, at UCB, thanks go to the members of the FOT and to the
software and systems personnel for their great efforts.  Particular
thanks go to the following:

 o To Greg Picard for his excellent efforts in working with the NCC on
   the spacecraft planning and scheduling process.

 o To Dennis Biroscak (who is no longer at CEA) and Alex Herz (of
   Omitron, Inc.) for their efforts in supporting the initial
   outsourcing organization and implementation efforts.

 o To Rob Nevitt, George Kaplan, Mike Gunter, and Brett Stroozas --
   the core outsourcing management team at UCB -- for their untiring
   efforts in all aspects of the outsourcing.

The outsourcing was difficult, challenging, and very demanding for
everyone involved.  However, GSFC and UCB, in a cooperative team
effort, rose to the challenge and completed the effort on schedule and
on budget.  The success of the outsourcing has thereby proved the
viability of a University conducting integrated satellite payload and
spacecraft operations.  Congratulations and thanks to everyone

2.2 On-Line Access to EUVE

   Listed below are the various methods for on-line access to EUVE:

 o UCB-CEA World Wide Web (WWW) at URL:

 o anonymous FTP:

 o EUVE Electronic Newsletters

     Past issues -- available via the UCB-CEA WWW site
     Subscriptions -- mail ("subscribe
     Post message (moderated) to all subscribers:

 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 UCB-CEA can help YOU!  For more information see the UCB-CEA
     WWW site or contact the Archive (

 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 UCB-CEA WWW site (address below) or contact the EGO
     Center (  Mail all proposals to

 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)

3. EUVE Outsourced Extended Mission Status Report
	by Brett Stroozas, EUVE Flight/Mission Director

   Work continues to outsource EUVE Explorer Platform (EP) spacecraft
operations from GSFC to the EUVE Platform Operations Center (EPOC) at
UCB-CEA.  The following sections describe some of the outsourcing
highlights from Mar 1997:

 o Handover of spacecraft operations responsibilities -- As mentioned
   above, operational control of the EP spacecraft was officially
   transferred to UCB on 14 Mar.  Representatives from NASA HQ, GSFC,
   and UCB met via telecon early that day and discussed the remaining
   outstanding performance criteria and open issues.  Everyone agreed
   that no critical items remained, and collectively approved the
   operations handover, which officially occurred at 22:00Z.  A
   Memorandum of Agreement (MOA) was completed and signed, pending
   completion of outstanding modifications and clarifications to the
   existing Cooperative Agreement.  A combined UCB/GSFC press release
   on the outsourcing was also completed and submitted to NASA for

 o Remote support area ready at GSFC -- The final critical issues were
   resolved in establishing a remote support area in the Software
   Development and Validation Facility (SDVF) at GSFC.  This area will
   be used by remote experts at GSFC to support EUVE in cases of
   spacecraft emergency.  On 12 Mar GSFC and UCB successfully tested
   the flow of realtime telemetry data to the SDVF.

 o GFE -- Progress continued to be made in the shipment of
   government-furnished equipment (GFE) from GSFC to UCB.  The
   hardware and software for the ETAWS/EAS trend system was packed and
   shipped, and the remaining TPOCC and CMS equipment was being
   readied for shipment.


  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.  EUVE Newsletter Editor: Brett
  Stroozas.  Funded by NASA/UCB Cooperative Agreement NCC5-138.  Send
  newsletter correspondence to

  The EUVE project is managed for NASA by UCB: Dr. Roger F. Malina,
  EUVE Observatory Director; Dr. John Vallerga, EUVE Observatory
  Deputy Director; Dr. Mike Gunter, EUVE Project Manager; Mr. Brett
  Stroozas, EUVE Flight/Mission Director.  NASA HQ: Dr. Guenter
  Riegler, Program Manager.


[HomePage] [Email] [Search] [Glossary]

Page created by
Last modified 10/4/97