HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2304

PERIOD COVERED:  0000Z (UTC) 02/08/99 - 0000Z (UTC) 02/09/99

Daily Status Report as of 040/0000Z

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 Two Sets of WF/PC-2 6967 (Blue Continuum Snapshots of 3CR
Radio - Continued Galaxies)

       The WF/PC-2 was used to make observations of the radio galaxies
3C220.2 and 3C165.0.  Radio galaxies are an important class of
extragalactic objects: they represent one of the most energetic
astrophysical phenomena and they may be used as probes of their
environments.  They are unique probes of the early Universe.  The
observations were completed as planned, and no problems were reported.

   1.3 Completed Two Sets of WF/PC-2 7620 (WF/PC-2 Cycle 7 Standard Darks)

       The WF/PC-2 was used to make a series of Cycle 7 standard dark
calibration images.  This dark calibration program obtains dark frames
every week in order to provide data for the ongoing calibration of the CCD
dark current rate, and to monitor and characterize the evolution of hot
pixels.  The observations were executed as scheduled, and no anomalies were
noted.

   1.4 Completed WF/PC-2 6353 (A Snapshot Emission Line Imaging Survey of
Very Low Excitation Planetary Nebulas)

       The WF/PC-2 was used to make snapshot observations as part to an
emission line survey of the very low excitation planetary nebula PKO38+12D1
(Class PNe).  This target was selected based on the O III/H alpha line flux
ratio.  The observations were executed as scheduled, and no anomalies were
noted.

   1.5 Completed Three Sets of STIS/CCD 8091 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation)

       The Space Telescope Imaging Spectrograph (CCD) was used to make high
galactic latitude, non-scripted, parallel observations.  The observations
were completed as planned, and no anomalies were noted.

   1.6 Completed STIS/CCD 8084 (POMS Test Proposal: STIS Non-Scripted
Parallel Proposal Continuation)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
non-scripted parallel high galactic latitude observations as part of POMS
test proposal.  The observations were executed as scheduled, and no
anomalies were noted.

   1.7 Completed Three Sets of WF/PC-2 7713 (WF/P-2 Cycle 7 Supplemental
Darks pt3/3)

       The WF/PC-2 was used to make supplemental dark calibration images.
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 completed as planned, and no anomalies were noted.

   1.8 Completed STIS/CCD/MA1 7305 (The Physical Characteristics of
Small-Scale ISM Structure)

       The Space Telescope Imaging Spectrograph (CCD and  MA1) was used to
make observations of the star HD32039 in order to measure the physical
characteristics of small-scale ISM structure.  A wavelength calibration
observation was also taken.  The observations were completed as planned,
and no anomalies were reported.

   1.9 Completed STIS/MA2 7950 (Cycle 7 MAMA Dark Measurements)

       The Space Telescope Imaging Spectrograph (MA2) was used to make a
dark calibration image.  This is to establish if the detectors are
performing nominally, that no internal movement of the MCP has taken place,
and establish dark level in orbit for a given operating temperature.  These
darks will be used in later image reduction and also trended over
instrument life time as indicators of detector degradation or damage.  The
observations were completed as planned, and no problems were reported.

   1.10 Completed WF/PC-2 7387 (T-Tauri Star Snapshot Survey)

       The WF/PC-2 was used to make observations of the stars CI-Tau and
DK-Tau as part of a T-Tauri class star survey.  The observations were
executed as scheduled, and no anomalies were noted.

   1.11 Completed STIS/MA2 7657 (STIS Spectroscopic and Imaging
Sensitivity, MAMA)

       The Space Telescope Imaging Spectrograph (MA2) was used to make
observations of GD71 in order to study the spectroscopic and imaging
sensitivity.  Sensitivity measurements are done for all primary tilts of
the gratings and the prism used with the MAMAs, except for the G140L and
G230L gratings.  Imaging sensitivity measurements are done with all
apertures, including a neutral density filter.  A wavelength and a dark
calibration image were also taken.  The observations were executed as
scheduled, and no anomalies were noted.

   1.12 Completed WF/PC-2 8090 (POMS Test Proposal: WF-II Parallel Archive
Proposal Continuation)

       The WF/PC-2 was used in the parallel mode to make some high galactic
latitude archive observations.  The program will be used to take parallel
images of random areas of the sky.  The observations were executed as
scheduled, and no anomalies were noted.

   1.13 Completed WF/PC-2 7266 (High-Resolution IR and Optical Imaging of
the Fields Around a Large Sample of Z > 4.5 Quasars)

       The WF/PC-2 was used to make observations of the quasar GB1428+421
in order to make high-resolution infrared and optical imaging of the fields
around the quasars.  This object appears to be very primitive and may
represent early stages in the galaxy formation process.  The observations
were completed as planned, and no anomalies were reported.

   1.14 Completed STIS/CCD 8394 (HST Service Observations of GRB 990123)

       The Space Telescope Imaging Spectrograph (CCD) was used to make HST
service observations of GRB990123.  The observations were executed as
scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 4
                                        Successful : 4

                          Scheduled Reacquisitions : 10
                                        Successful : 10

   2.2 FHST Updates:

                              Scheduled : 9
                             Successful : 9

   2.3 Operations Notes:

        Using ROP SR-1, the SSR EDAC error counter was cleared once.

       A TTR was written for day inversions occurring on day 039.

       The Gyro-3 drift rate bias trend data has shown some improvement
over the weekend-and-Monday period.  The value achieved has been
approximately 43 arcseconds/hour per day whereas the desired value of 10.8
arcseconds/hour per day is required before Gyro-3 can be re-inserted into
the control loop.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH