HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2209

PERIOD COVERED:  0000Z (UTC) 09/15/98 - 0000Z (UTC) 09/16/98

Daily Status Report as of 259/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 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.

   1.2 Completed NIC/2 7887 (A Survey of Gravitational Lenses as
Cosmological Tools II)

       The Near Infrared Camera (Camera Two) was used to make observations
of the gravitational lens candidate system HST14164+5.  The purpose is to
extend our IR survey of gravitational lenses and gravitational lens
candidates by obtaining NICMOS images of 14 additional lens systems or
candidates.  The observations were executed as scheduled, and no anomalies
were noted.

   1.3 Completed Eight Sets of STIS/CCD 8062 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation)

       The Space Telescope Imaging Spectrograph (CCD) was used to make high
galactic latitude observations take in parallel with the prime science
observations.  The observations were completed as planned, and no problems
were reported.

   1.4 Completed NIC/2 7895 (HST NICMOS SNAPSHOT Observations of Field
Galaxies at Z < 1)

       The Near Infrared Camera (Camera Two) was used to make observations
of the field galaxy Gal-141746.  The proposed NICMOS observation will
provide their morphology in rest frame near infrared (NIR) wavelengths
{8000 - 16000 A}, where the effect of dust extinction is less severe, and
their NIR colors.  The observations were completed as scheduled, and no
anomalies were reported.

   1.5 Completed STIS/CCD 7930 (STIS CCD Binned Bias Monitor)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
numerous bias exposures in 1 x 2 binned mode in order to permit
construction of "superbias" frames in which the effects of read noise have
been rendered negligible.  The observations were executed as scheduled, and
no anomalies were noted.

   1.6 Completed Two Sets of WF/PC-2 7619 (WF/PC-2 Cycle 7 Decontamination)

       The WF/PC-2 was used to conduct a Cycle 7 decontamination procedure.
Ultraviolet-blocking contaminants were removed, and hot pixels cured, by
warming the CCDs to +20C for 6 hours.  A variety of internal images were
taken before and after the decontamination in order to verify its success
and to monitor the instrument health.  The procedures were conducted as
scheduled, and no problems were reported.

   1.7 Completed Two Sets of NIC/1/2/3 7898 (Snapshot Survey of
Proto-planetary Nebulae)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make snapshot survey observations of the protoplanetary nebula IRAS22223
and around star HD179821.  This is to help discern the structure of the
nebulae and the evolutionary sequence that produces axially symmetric
planetary nebulae.  As described in HSTAR 6674 and yesterday's report,
during the second iteration of this proposal, the guide star acquisition
failed and the take data flag remained down for one observation.
Otherwise, the observations were executed as scheduled, and no further
anomalies were noted.

   1.8 Completed Two Sets of STIS/MA1 7439 (H-Lyman Alpha Emission from the
Upper Atmosphere of Uranus)

       The Space Telescope Imaging Spectrograph (MA1) was used to make
H-Lyman Alpha observations of the emissions from the upper atmosphere of
the planet Uranus.  An excess of H-Lyman Alpha emission from Uranus' sunlit
hemisphere has been detected by the IUE satellite since 1982, and some
excess was confirmed with the Voyager 2 UVS during the 1986 encounter with
Uranus.  The observations were executed as scheduled, and no anomalies were
noted.

   1.9 Completed NIC/2 7894 (Completing A Near-Infrared Search for Very Low
Mass Companions to Stars within 10 pc)

       The Near Infrared Camera (Camera Two) was used to make observations
searching for very low mass (VLM) companions to the star LHS511.  This
search will be the largest, most sensitive, volume-limited search for VLM
companions ever undertaken.  The observations were completed as planned,
and no anomalies were reported.

   1.10 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.  The observations were executed as scheduled, and no
anomalies were noted.

   1.11 Completed STIS/MA2 7720 (MAMA Full Field Sensitivity Monitor and
PSF Check)

       The Space Telescope Imaging Spectrograph (MA2) was used to monitor
the sensitivity of the FUV-MAMA and NUV-MAMA over the full field and
monitor the PSF. This was done by making observations of NGC-6681.  The
observations completed as planned, with no reported problems.

   1.12 Completed WF/PC-2 7623 (WF/PC-2 Cycle 7 Internal Flats)

       The WF/PC-2 was used to make a set of internal Cycle 7 calibration
flats which are designed to monitor the pixel to pixel flat field response
and the visflat lamp degradation, as well as detect any possible changes
due to contamination.  The calibration observations were completed as
planned, and no problems were reported.

   1.13 Completed WF/PC-2 6794 (Proper Motions of Herbig-Haro Jets)

       The WF/PC-2 was used to make observations of the Herbig-Haro object
HH34-P1 in order to measure the proper-motions of these high Mach number
flows of its two opposing jets.  The tangential velocities of several
hundred km/s will produce displacements between our first- and second-epoch
images of 2-4 pixels after only two years.  The observations were completed
as planned, and no anomalies were reported.

   1.14 Completed Four Sets of NIC/2/3 8082 (NICMOS pure parallel Fall 98)

       The Near Infrared Camera (Cameras Two and Three) was used to make
pure parallel observations while another instrument is prime.  The
observations were executed as scheduled, and no anomalies were noted.

   1.15 Completed Two Sets of NIC/2/3 8063 (NICMOS Pure Parallel Sponge -
Backup)

       The Near Infrared Camera (Cameras Two and Three) was used to make
observations taken in parallel with the prime science observations.  This
proposal is PRE-the new FOM default.  The observations were executed as
scheduled, and no anomalies were noted.

   1.16 Completed NIC/2 7233 (Dust Disks Around Main Sequence Stars)

       The Near Infrared Camera (Camera Two) was used to make observations
of the dust disk around main sequence stars.  The observations were made
with the coronagraph to minimize the effects of glare from the bright
central star.  A dark calibration image was also taken.  The observations
were completed as scheduled, and no anomalies were reported.

   1.17 Completed Two Sets of WF/PC-2 6735 (Locating Disks, Accretion
Flows, and outflows in Close Binary T Tauri Stars)

       The WF/PC-2 was used to make observations of the binary system,
T-Tauri class star FY-Tau in order to study the location of disks and
accretion flows.  Although the standard model for T-Tauri star formation is
based on single stars, we know that these T Tauri stars are in multiple
star systems having separations less than 100 AU.
The observations were completed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 8
                                        Successful : 8

                          Scheduled Reacquisitions : 8
                                        Successful : 8

   2.2 FHST Updates:

                              Scheduled : 14
                             Successful : 14

   2.3 Operations Notes:

       The SSR EDAC error counter was reset three times per ROP SR-1.

       The HST IP was the prime system again from approximately 258/1200Z
until approximately 258/2000Z.  There were no operational problems.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH