HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2218

PERIOD COVERED:  0000Z (UTC) 09/28/98 - 0000Z (UTC) 09/29/98

Daily Status Report as of 272/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Three 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.

   1.2 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.

   1.3 Completed Two Sets of STIS/CCD/MA2/WF/PC-2/NIC/1/2/3 8058 (HDF-South
Observations)

       The Space Telescope Imaging Spectrograph (CCD and MA2), the WF/PC-2,
and the Near Infrared Camera (Cameras One, Two and Three) were all used to
make long exposure Hubble Deep Field (HDFS-22333) observations.  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.

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 : 4
                             Successful : 4

   2.3 Operations Notes:

       The two-week-long Hubble Deep Field-South (HDF-S) campaign began
with today's observations.  These observations are described above.  No
substantial problems were encountered.  The NSSC-1 status buffer was dumped
and reset three times per ROP NS-3.  These status buffer events were
expected as a result of HDF-S observations.  They will occur at each SAA
exit until the STIS event flag 2 is reset at the end of the HDF-S campaign.

       Using ROP SR-1, the SSR EDAC error counter was reset four times.

       As documented in HSTAR 6695, the STIS MAMA-2 MCE reset at
271/194053Z during an SAA passage and while the MCE was in transition to
low voltage.  The STIS flight software error counter was reset per ROP
NS-12.  The MAMA-2 was recovered via the SMS at the time (271/2205735Z) of
the next high voltage on commanding.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH