HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2162

PERIOD COVERED:  0000Z (UTC) 07/09/98 - 0000Z (UTC) 07/10/98

Daily Status Report as of 191/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Two Sets of WF/PC-2 7712 (WF/PC-2 Cycle 7 Supplemental
Darks pt2/3)

       The WF/PC-2 was used to make a series of Cycle 7 supplemental
calibration darks.  This dark calibration program obtains three dark frames
every day to provide data for monitoring and characterizing the evolution
of hot pixels.  As described in yesterday's report and in HSTAR 6575, the
reacquisition for the second iteration of this proposal failed and the take
data flag went down.  Otherwise, the observations were executed as
scheduled, and no further anomalies were noted.

   1.2 Completed Two Sets of STIS/CCD 7948 (CCD Dark and Bias Monitor --
Cont. to Dec. 98)

       The Space Telescope Imaging Spectrograph (CCD) was used to measure
CCD dark current and bias rates for the two supported amplifier settings
{GAIN=1 and GAIN=4} in order to gather data for making superdarks and
superbiases.  The data will be used to track the growth of hot pixels on
the CCD in general and within the various target acquisition apertures
specifically.  The observations were executed as scheduled, and no
anomalies were noted.

   1.3 Completed Four Sets of WF/PC-2 7909 (POMS Test Proposal: WF II
Parallel Archive Proposal)

       The WF/PC-2 was used to make parallel observations as part of the
POMS test proposal.  This test proposal is designed to simulate scientific
plans.  The observations were completed as planned, and no problems were
reported.

   1.4 Completed WF/PC-2 7622 (WF/PC-2 Cycle 7 Internal Monitor)

       The WF/PC-2 was used to make a set of Cycle 7 internal monitoring
calibration measurements.  A variety of internal exposures are obtained in
order to provide a monitor of the integrity of the CCD camera electronics
in both bays {gain 7 and gain 15}, a test for quantum efficiency in the
CCDs, and a monitor for possible buildup of contaminants on the CCD
windows.  A bias calibration and an internal flat calibration image were
also taken.  The observations were executed as scheduled, and no anomalies
were noted.

   1.5 Completed NIC/1 7861 (A Search for Extrasolar Giant Planets in the
Nearby TW Hya Association)

       The Near Infrared Camera (Camera One) was used to search for
extrasolar giant planets on the nearby star USNO-21 (a.k.a., TW Hya).  One
of the primary goals of NASA's mission is the identification of formed and
nascent planetary systems.  The observations were executed as scheduled,
and no anomalies were noted.

   1.6 Completed NIC/1/2 7856 (Jets, Cones and the Alignment Effect in
High-Z Radio Galaxies)

       The Near Infrared Camera (Cameras One and Two) was used to make
observations of the radio galaxy 3C324.  Two distinct physical mechanisms
-- anisotropic quasar illumination and jet-cloud interactions -- are
required to explain the general properties of high-z {z > 0.5} radio
galaxies.  The observations were executed as scheduled, and no anomalies
were noted.

   1.7 Completed NIC/1/2/3 7896 (A NIR Snapshot Survey of Ultraluminous IR
Galaxies)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make snapshot survey observations of the ultraluminous infrared galaxy
IR14378-36.  Nearly all of these galaxies show evidence for a recent tidal
interaction, and we will search for evidence of the merger progenitors near
the center of each galaxy, a task made significantly easier with NIR
imaging.  The observations were completed as planned, and no anomalies were
noted.

   1.8 Completed STIS/CCD/MA1/MA2 7931 (Scattered Light in the Echelle Modes)

       The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was used
to study scattered light in the STIS Echelle Modes by making observations
of the O class star CPD59D260.  The effect is strongest at the shortest red
wavelengths.  A wavelength calibration image was also taken.  The
observations were completed as planned, and no problems were reported.

   1.9 Completed Two Sets of NIC/2/3 7907 (NICMOS Pure Parallel Winter 97-98)

       The Near Infrared Camera (Cameras Two and Three) was used to make
pure parallel spectrographic observations of sky regions when another
instrument is prime.  The observations were completed as planned, and no
anomalies were reported.

   1.10 Completed NIC/1 7821 (SINS: The Supernova Intensive Study - Cycle
7+: Scarlet SINS)

       The Near Infrared Camera (Camera One) was used to make observations
of the super nova LMC-SN1987 which is located in the Large Magellanic
Cloud.  Supernovae create the chemical history of the Universe, energize
the interstellar gas, and stand at the center of efforts to understand the
extragalactic distance scale.  The observations were completed as
scheduled, and no problems were noted.

   1.11 Completed Two Sets of STIS/CCD 7912 (STIS Parallel Archive Proposal
- Nearby Galaxies - Imaging and Spectroscopy)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
parallel observations of nearby galaxies.  This survey will be useful to
study the star formation histories, chemical evolution, and distances to
these galaxies.  These data will be placed immediately into the Hubble Data
Archive.  The observations were completed as scheduled, and no problems
were reported.

   1.12 Completed WF/PC-2 6776 (A Comparative HST Imaging Study of Radio
Galaxies and Hosts)

       A clear understanding of the nature of the host galaxies of
radio-quiet quasars, radio-loud quasars and radio galaxies is of central
importance in any attempt to unify and relate the three main classes of
powerful active galaxies.  Existing HST studies of quasar hosts, whilst
producing many interesting new results, have yielded surprisingly little
hard information on the properties of the hosts themselves.  This imaging
study of 3C59 using the WF/PC-2 will remedy this situation by undertaking
redder, line-free observations of our three matched AGN samples.  The
proposal completed with no reported problems.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 5
                                        Successful : 5

                          Scheduled Reacquisitions : 9
                                        Successful : 9

   2.2 FHST Updates:

                              Scheduled : 11
                             Successful : 11

   2.3 Operations Notes:

       The SSR EDAC error counter was cleared three times using ROP SR-1.

       As described in HSTAR 6576, the STIS MCE-2 reset at 190/1303Z while
the voltage was on.  The MAMA-2 was recovered nominally via SMS commanding
at 190/1651Z when the high voltage was turned on.

       The DF-224 SPC memory was dumped to CCS strings A and B at 191/0542Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH