HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1523

PERIOD COVERED:  0000Z (UTC) 11/22/95 - 0000Z (UTC) 11/27/95

Daily Status Report as of 331/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed WF/PC-2 5849 (Host Galaxies of Luminous Nearby Quasars)

       The WF/PC-2 was used to make deep exposure observations of host =
galaxy PG1226+023 which is known to have a luminous nearby quasar.  The =
observations were executed as scheduled, and no anomalies were noted.

1.2 Completed GHRS/2 5869 (Chromospheric Activity in Quiet stars: Halo =
Subdwarfs)

       The High Resolution Spectrograph (Side Two) was used to make =
spectrographic observations of the quiet star HD114762 to study its =
chromospheric activity.  This is a search for Mg II emission in low =
metallicity solar temperature field stars in the galactic halo.  The =
observations were completed as planned, and no problems were reported.

1.3 Completed Seven Sets of FOS/BL 6166 (FOS Cycle 5: Location of Spectra =
and Wavelength Calibration)

       The Faint Object Spectrograph (Blue Side) was used to make =
wavelength calibration images to measure the stability of the FOS Blue =
Side wavelength scale and spectral locations.  A Taled calibration =
observation was also taken.  The observations were completed as planned, =
and no anomalies were reported.

1.4 Completed Three Sets of WF/PC-2 5831 (Temporal Evolution of Neptune's =
Vertical Aerosol Structure)

       The WF/PC-2 was used to make observations of the planet Neptune at =
various different wavelengths to study the temporal evolution of its =
vertical structure in its atmosphere.   During the second iteration of =
this proposal, at 326/102320Z, the guide star acquisition had briefly =
achieved fine lock when a loss of lock occurred.  The take data flag was =
never raised.  The other observations were executed as scheduled, and no =
anomalies were noted.

1.5 Completed WF/PC-2 5909 (Ionization Mapping of Cygnus A)

       The WF/PC-2 was used to make images of prototypical radio galaxy =
3C405 (Cygnus A) in the emission lines of oxygen.  The interesting =
physical effects are contained within a 0.5 degree radius.  The objective =
is to determine what parts of the line and continuum emission are =
stimulated by photoionization from a hidden nucleus and what parts are =
stimulated by shocks from the radio jet.  The observations were executed =
as scheduled, and no anomalies were noted.

1.6 Completed WF/PC-2 6280 (Planetary Nebular Structure)

       The WF/PC-2 was used to obtain H-alpha images of two planetary =
nebulae.  The goal is to study the filamentary structures and, for =
NGC6853, to look for temporal changes in the condensations by comparing =
these images with those obtained for proposal 5106.  The observations were =
completed as planned, and no anomalies were noted.

1.7 Completed WF/PC-2 5476 (Continuum Snapshots of 3CR Radio Galaxies) 

       The WF/PC-2 was used to make snapshot images of radio galaxy =
3C129.1 as part of a continuum survey and to study the galaxy's =
morphology.  At 326/080939, the FGS acquisition for this proposal failed =
when the scan step limit was exceeded.  HSTAR 5370 describes this event.

1.8 Completed Six Sets of WF/PC-2 6188 (WF/PC-2 Cycle 5 Calibration: Dark)

       The WF/PC-2 was used to make internal dark calibration images.  The =
observations were completed as scheduled, and no problems were reported.

1.9 Completed WF/PC-2 5479 (Subarcsecond Structure in Nearby AGNs)

       The WF/PC-2 was used to make snapshot observations of the nearby =
active galactic nuclei of NGC-1144 to study the interactions between the =
central engine, the stars, and the interstellar matter in the AGN.  The =
observations were executed as scheduled, and no anomalies were noted.

1.10 Completed WF/PC-2 5824 (Occultation of GSC5249 by Saturn)

       The WF/PC-2 was used to observe Saturn's atmosphere and its rings =
while being occulted by FQCH4P15.  Spectra of the occulted star, of =
Saturn's atmosphere and of Saturn's rings will be obtained before and =
after the occultation.  The observations were completed as planned, and no =
problems were reported.

1.11 Completed WF/PC-s 6226 (Disks around Main Sequence Stars)

       The WF/PC-2 was used to attempt the detection of a circumstellar =
disk around a bright star.  The target is HR 8728.  IRAS observations have =
shown that this star has an infrared excess.  The observations were =
completed as planned, and no problems were reported.

1.12 Completed GHRS/1 6067 (Hot Times in the Hertzsprung Gap)

       The High Resolution Spectrograph (Side One) was used to explore the =
early evolution of magnetic activity in F-G0 giants crossing the =
Hertzsprung gap.  A range of UV emission lines will be used to constrain =
existing models, and to develop new ones.  The observations were completed =
as planned, and no anomalies were noted.

1.13 Completed Three Sets of WF/PC-2 5972 (Determination of the =
Extragalactic Distance Scale)

       The WF/PC-2 was used to make observations of the galaxies NGC-1365, =
NGC-3198, and NGC-2541 looking for standard candle Cepheid variable stars. =
 The purpose of this observations is to help estimate the Hubble constant =
with an accuracy of 10%.  The observations were executed as scheduled, and =
no anomalies were noted.

1.14 Completed WF/PC-2 6184 (WF/PC-2 Cycle 5 Photometric Calibration =
Monitor UV/OPT STD)

       The WF/PC-2 was used to make ultraviolet and optical observations =
of standard star GRW+70D582 in order to monitor the photometric =
calibrations of the camera and to check for decontamination.  The =
observations were executed as scheduled, and no anomalies were noted.

1.15 Completed Two Sets of WF/PC-2 6119 (Snapshot Survey for Companions of =
Planetary Nebula Nuclei)

       The WF/PC-2 was used to make snapshot survey observations of =
planetary nebula NGC-6543 to study their nuclei and to look for possible =
companions.  The observations were executed as scheduled, and no anomalies =
were noted.

1.16 Completed WF/PC-2 5941 (HST Medium Deep Survey - Crafting Test)

       The WF/PC-2 was used to make observations of the jet in the nuclear =
region of galaxy M-87 looking for changes in the jet since last year.  =
Proper motions in the jet should be detectable in this time span.  Dark =
and an internal flat calibration images were also taken.  The observations =
were executed as scheduled, and no anomalies were noted.

1.17 Completed FOS/BL 6035 (Time-Resolved UV Spectra of HT Cas)

       The Faint Object Spectrograph (Blue Side) was used to observe the =
dwarf nova HT Cas in the rapid mode to obtain time-resolved spectroscopy =
of these eclipses.  The purpose is to obtain information about the nature =
of the disk and boundary layer.  The observations were executed as =
scheduled, and no anomalies were noted.

1.18 Completed WF/PC-2 5971 (HST Medium Deep Survey)

       The WF/PC-2 was used to make a long exposure medium deep sky survey =
observations at latitudes larger than 10 degrees taken in parallel with =
the prime science observations.  The observations were executed as =
scheduled, and no anomalies were noted.

1.19 Completed WF/PC-2 5924 (Nuclear Emission Line Region Associated with =
Compact Flat Spectrum)

       The WF/PC-2 was used to make spectrographic observations of the =
nuclear emission region of galaxy NGC-2911 to study its compact flat =
spectrum.  There is evidence that this jet-produced AGN is powered by =
accretion disks feeding massive black hole.  The observations were =
executed as schedule, and no anomalies were noted.

1.20 Completed WF/PC-2 6332 (The Circumnuclear Regions of Seyfert Galaxies =
LRF Part: cycle 4 Medium)

       The WF/PC-2 and the linear ramp filter (LRF) were used to make =
observations for the circumnuclear regions of Seyfert galaxy UGC04203 in =
both emission and continuum.  From the data the PI expects to derive =
sufficient evidence to confirm or refute a suggested model of Seyfert Type =
2 galaxies.  The observations were executed as scheduled, and no anomalies =
were noted.

1.21 Completed Two Sets of WF/PC-2 6189 (WF/PC-2 Cycle 5 Calibration: =
Internal Monitor - Vis Flats)

       The WF/PC-2 was used to make internal visual flat calibration =
images.  Both photometric and narrow-band filters were used. The =
observations were executed as planned, and no problems were reported.

1.22 Completed Three Sets of WF/PC-2 5957 (Snapshot of 3CR Radio Galaxies)

       The WF/PC-2 was used to make observations of radio galaxies =
3C268.4, 3C277.0, and 3C295.0 to study the morphology of these radio =
galaxies.  During the final iteration of this proposal, science data was =
lost due to the misconfiguration of TRI module mentioned in section 2.3.  =
Otherwise, the observations were executed as scheduled, and no anomalies =
were noted.

1.23 Completed Two Sets of WF/PC-2 5999 (The Nuclear Structure of S0 =
Galaxies: A PC Imaging Survey)

       The WF/PC-2 was used to make observations of S0 class galaxies =
NGC-1400 and NGC-2902 in order to study their nuclear structure.  This is =
a part of a large survey of S0, E/S0, and S0/a class galaxies.  The =
targets will cover a wide range in luminosity and environment.  The =
observations were completed as planned, and no anomalies were noted.

1.24 Completed WF/PC-2 5913 (Low-Mass Binaries and Luminosity Function)

       The WF/PC-2 was used to make observations of the low-mass binary =
system NGP001 (Late Type Class M dwarf stars).  The intent is to determine =
why the local stellar luminosity function is flat below Mv=3D12, while =
that found from more distant stars falls by an order of magnitude by =
Mv=3D14.  The observations were executed as scheduled, and no anomalies =
were noted.

1.25 Completed Three Sets of WF/PC-2 6313 (The Hubble Deep Field (HDF) =
Experiments)

       The WF/PC-2 was used to make selected ultraviolet, visible and =
near-inferred in the continuous view zone (i.e., CVZ) using the Hubble =
Deep Field HDF-123649 to study the morphology and spectral information on =
extremely faint field galaxies.  This is a feasibility test in preparation =
for further studies.  For the second iteration of this proposal, the FGS =
acquisition, at 329/053056Z, failed due to fine lock backup on FGS #2 when =
the scan step limit being exceeded.  HSTAR 5373 was written.  For the final=
 iteration, all tape recorder science data was lost due to the TRI module =
minconfiguration mentioned in section 2.3.  Otherwise, the observations =
were completed as scheduled, and other no anomalies were reported.

1.26 Completed WF/PC-2 6069 (Unraveling the Complex Wind Outflow From Zeta =
Auriga)

       The WF/PC-2 was used to make spectrographic observations of the =
star Zeta Auriga (aka, HD32068) in order to study its complex wind =
outflow.  This system in to be an eclipsing binary system with a 972 day =
period.  A wavelength calibrations observation was also taken.  The =
observations were completed as planned and no anomalies were reported.

1.27 Completed WF/PC-2 5353 (Low-Mass Binaries in the Hyades: Cycle 4 =
High)

       The WF/PC-2 was used to make images of the low-mass, late M-Class =
dwarf star RHY297 which is located in the Hyades cluster.  Some of the =
companion stars may be brown dwarfs.  The observations were completed as =
scheduled, and no problems were reported.

1.28 Completed WF/PC-2 6134 (Investigating the Nature of Circumstellar =
Matter in Young Clusters)

     The WF/PC-2 was used to take broad band images of several young star =
clusters associated with bright reflection nebulae in an attempt to detect =
circumstellar (CS) material about the stars in these clusters.  The HST =
data will be combined with ground based near-IR and millimeter data.  The =
combined data is expected to determine the frequency distribution of CS =
material and disks in undisturbed young clusters, the size and mass =
distribution of CS nebulae, and the correlation of these properties with =
stellar luminosity.  The observations were completed as scheduled, and no =
problems were reported.

1.29 Completed WF/PC-2 5949 (High Resolution Imaging of Galaxies =
Responsible for QSO Lyman Alpha Absorption.)

      The WF/PC-2 was used to make high resolution observations of Field =
1004 in order to study galaxies which are responsible for intermediate =
redshift QSO Lyman Alpha absorption.  It is the extended gaseous region =
around these galaxies that produces the absorption.  The observations were =
executed as scheduled, and no anomalies were noted.

1.30 Completed WF/PC-2 5983 (Curcumstellar Disks in Young Nebulous =
Clusters)

       The WF/PC-2 was used to make observations of the young nearby =
nebulous clusters S155-1 and S155-2 looking for possible curcumstellar =
disks (Solar nebula analogs), like the type seen in the Orion Nebula.  The =
observations were completed as planned, and no problems were reported.

1.31 Completed WF/PC-2 6250 (WF/PC-2 Cycle 5 Calibration: Internal =
Monitor)

       The WF/PC-2 was used to make a series on internal calibration =
observations.  Internal flats, biases, and K-Spot calibration images were =
taken.  These observations are designed to monitor the health of the =
cameras.  The observations were executed as scheduled, and no anomalies =
were noted.

1.32 Completed WF/PC-2 6000 (Galaxies in High Redshift Clusters)

       The WF/PC-2 was used to obtain deep broad-band images of several =
high-redshift galaxy clusters.  The objective is to study the morphology =
of those clusters, and compare them with nearby clusters.  The =
observations were executed as scheduled, and no anomalies were noted.

1.33 Completed WF/PC-2 6187 (WF/PC-2 Cycle 5 Calibration: Earth Flats)

       The WF/PC-2 was used to make Earth streak flat calibration images.  =
These streak flats will be used to produce flat fields, to map the OTA =
illumination pattern and, in combination with other data, to produce new =
superflats.  The observations were completed as planned, and no problems =
were reported.

1.34 Completed WF/PC-2 6099 (Black Holes and Cores of Galaxies)

       The WF/PC-2 was used to search for possible black holes in the =
cores of nearby early-typr galaxies.  The WF/PC-2 will be used to obtain =
high resolution images of several galaxies to identify those with bright =
cores, and to provide sufficiently accurate coordinates for the FOS, which =
will be used to measure the velocity dispersion around selected galaxies.  =
The observations were executed as scheduled, and no anomalies were noted.

1.35 Completed WF/PC-2 6281 (Planetary Nebulae Nuclei Photometry)

       The WF/PC-2 was used to make difficult observations of the central =
stars of the highest excitation planetary nebulae.  It is believed that =
these PN nuclear stars have temperatures in excess of 100,000K.  The =
target is IC2165.  The observations were executed as planned, and no =
anomalies were noted.

1.36 Completed WF/PC-2 6303 (Observations of Galaxies Underlying Quasars)

       The WF/PC-2 was used to make observations of low red shift quasar =
1E0754+392 in order to study its underlying galaxy.  The purpose is to =
detect structure down to the 0.1 arcsecond level.  The observations were =
completed as planned, and no problems were reported.

1.37 Completed FGS 6264 (Parallax of RR-Lyrae)

       The FGSs were used to make astrometric observations of the variable =
star RR-Lyrae in order to measure its parallax. RR-Lyrae is the proto-type =
for a class of variable stars whose pulsation periods correlate with their =
absolute magnitudes. The science tape recorder data for this proposal was =
lost due to the TRI module misconfiguration mentioned in section 2.3.  =
Otherwise, the observations were completed as planned, and other no =
problems were reported.

1.38 Completed WF/P-2 6254 (GTO Pure Parallel Program - Cycle 5)

       The WF/PC-2 was use to make random long exposures of high galactic =
fields taken in parallel with the prime science observations to obtain a =
random sample of galaxies.  The observations were executed as scheduled, =
and no anomalies were noted.

1.39 Completed GHRS/2 5315 (Stellar Wind Instabilities)

       The High Resolution Spectrograph (Side Two) was used to obtain high =
signal/noise spectra of the N V, Si IV, and C IV lines of the O-star =
HD210839.  The objective is to monitor the stellar wind on short time =
scales at sufficiently high signal to distinguish between low-velocity, =
mechanically-driven instabilities and intrinsic, radiatively-driven =
instabilities, and to define the interaction between the two regimes.  The =
observations were executed as scheduled, and no problems were reported.

1.40 Completed WF/PC-2 5979 (The Mass Distribution Near 097+561)

       The WF/PC-2 was used to obtain deep images of a lensed QSO.  The =
objective is to derive the mass distribution of the lensing cluster by =
measuring the distortion of background galaxies.  Knowing the mass =
distribution of the cluster, and the time delay between variations in the =
two components of the lensed QSO, it is possible to compute the Hubble =
Constant.  The observations were executed as scheduled, and no problems =
were reported.

1.41 Completed WF/PC-2 6115 (A Low-Z Damped Lyman Alpha Absorption Galaxy)

       The WF/PC-2 was used to examine the spectrum of QSO 0117+2118 in =
order to observe the low-redshift damped Lyman Alpha absorption.  It is =
thought that this absorption may be caused  by a spiral galaxy in the line =
of sight to the QSO.  It is expected that the QSO will show saturation and =
bleeding, since the area of interest is within a few arcseconds of the =
QSO.  The observations were executed as scheduled, and no problems were =
reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 44
                                        Successful : 43

One FGS acquisition, at 329/053056Z, failed to fine
       lock backup on FGS #2 only when the scan step limit
       was exceeded.  HSTAR 5373 was written.

                          Scheduled Reacquisitions : 25
                                        Successful : 35

   2.2 FHST Updates: 

                              Scheduled : 86
                             Successful : 86

   2.3 Operations Notes: 

       The realtime operations conducted in the SAMS backup facility, =
which began at 326/0843Z, concluded at 327/0036Z, with no significant =
problems.

       The TRI module for TR #1 was commanded to REPRO at 329/210440Z, =
which resulted in science data loss from 330/011348Z to 330/025403Z.  The =
misconfiguration was corrected at 330/034330Z, but three proposals (FGS =
6264, WF/PC-2 6313, and WF/PC-2 5957) were affected.  HSTAR 5376 =
documented these events.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH