HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2225

PERIOD COVERED:  0000Z (UTC) 10/07/98 - 0000Z (UTC) 10/08/98

Daily Status Report as of 281/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Two Sets of STIS/CCD/MA2/WF/PC-2/NIC/1/2/3 8076 (HDF-South
Observations)

       The WF/PC-2, The Space Telescope Imaging Spectrograph (MA2 and CCD)
and the Near Infrared Camera (Cameras One, Two and Three) all were used to
make deep observations of the Hubble Deep Fields-South (HDFS-22333).  This
program is designed to provide deep observations of a high-galactic
latitude field in the southern continuous viewing zone.  The STIS field is
centered on a bright QSO at z=2.25.  The observations were executed as
scheduled, and no anomalies were noted.

   1.2 Completed Three Sets of NIC/1/2/3 7596 (NICMOS MULTIACCUM Dark
Characterization)

       The Near-Infrared Camera Multi-Object Spectrograph (Cameras One, Two
and Three) was used to make a NICMOS MULTIACCUM dark characterization.  The
purpose of this proposal is to monitor the darks using three different
MULTIACCUM sequences.  As described in 2.1 and HSTAR 6705, the acquisition
for the final iteration of this proposal defaulted to control on one FGS
only.  Otherwise, the observations were executed as scheduled, and no
further anomalies were noted.

   1.3 Completed 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.

   1.4 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 the main sequence star Alpha-Lyra (a.k.a., Vega).
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.  As described in 2.1 and HSTAR 6705, the acquisition for this
proposal defaulted to control on one FGS only.  Otherwise, the observations
were completed as scheduled, and no further anomalies were reported.

   1.5 Completed STIS/MA1 7298 (A Snapshot Survey for UV bright Quasars at
redshift below 3)

       The Space Telescope Imaging Spectrograph (MA1) was used to make
ultraviolet snapshot observations  of the bright quasar S2-1848+28 which
has a redshift (Z) below 3.0.  The goal is to find quasars bright enough in
the ultraviolet for spectroscopic follow-up in the range OF 900-1200
Angstroms.  A wave length calibration image was also taken.  The
observation were completed as scheduled, and no anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 10
                                        Successful : 10

       The acquisition at 280/192733Z defaulted to fine lock on FGS-3 only
when the scan step limit was exceeded on FGS-1.  HSTAR 6705 was written.
The proposals detailed in 1.2 and 1.4 may have been affected.

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates:

                              Scheduled : 16
                             Successful : 16

   2.3 Operations Notes:

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

       As described in HSTAR 6706, there was a NICMOS EDAC single bit error
at 280/194156Z.  Per an operations request, at 281/0330Z, the NICMOS
internal log was dumped and the ground system limit was raised to 21.

       The HST ground system was configured to the IP network at 280/1840Z.
Realtime data, at the 1Meg rate was received from 280/1947Z-1949Z and from
280/2034Z-2035Z.

       A TTR was written for two TDRSS events which were lost due to
outage.  A total of 15 minutes recoverable data was lost.

       Using ROP RD-7, ESTR-2 was re-conditioned at 281/0405Z and ESTR-3
was re-conditioned at 281/0807Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH