HUBBLE SPACE TELESCOPE

                              DAILY REPORT #1391

PERIOD COVERED:  0000Z (UTC) 05/15/95 - 0000Z (UTC) 05/16/95

Daily Status Report as of 136/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed GHRS/2 5546 (GHRS Side 2 Threshold Adjustment Test: Cycle 4)

       The High Resolutions Spectrograph (Side Two) was used to determine the
threshold levels for the noisy channels within the unit. A dark calibration
image was also taken. The observations were executed as scheduled and no
anomalies were noted.

   1.2 Completed FOC/96 5708 (Bulge Populations in S0 Galaxies: Cycle 4
Carry-Over)

       The Faint Object Camera (f/96) was used to make ultraviolet
observations of hot stars in the central bulge of the S0 class galaxy
NGC-3115 to study its stellar populations. The observations were completed as
planned and no anomalies were noted.

   1.3 Completed WF/PC-2 5370 (HST Medium-Deep Survey: Cycle 4 Medium, High
Galactic Latitude)

       The WF/PC-2 was used in parallel with the prime science observations
to make high galactic latitude observations as part of a medium-deep sky
survey. The observations were completed as planned, and no problems were
reported. 

   1.4 Completed WF/PC-2 6142 (WF/PC-2 Cycle 4 Calibration: Earth Flats,
Smaller Set Part II)

       The WF/PC-2 was used to make Earth Flat calibration images for the
ultraviolet and narrow-band filters to correct for the telescope's
illumination pattern. The observations were executed as scheduled, and no
anomalies were noted.

   1.5 Completed WF/PC-2 5091 (GTO High Latitude Parallel Program: Cycle 4)

       The WF/PC-2 was used in parallel with the prime science observations
to make high galactic latitude observations greater than +/-30 degrees. The
observations were executed as scheduled, and no problems were reported.

   1.6 Completed WF/PC-2 5562 (WF/PC-2 Cycle 4 Calibration: Internal Monitor
3: Darks)

       The WF/PC-2 was used to obtain several 30-minute long, dark exposures
to provide ongoing calibration of the CCD dark current and to monitor and
characterize the evolution of hot pixels. The observations were executed as
scheduled, and no anomalies were noted. 

   1.7 Completed Two Sets of WF/PC-2 5397 (Determination of the Extragalactic
Distance Scale: Cycle 4 High)

       The WF/PC-2 was used to make images of galaxies NGC-4725 and NGC-4414
to be used in measuring the periods of Cepheid variable stars within the
galaxies. The observations were completed as planned, and no anomalies were
noted.

   1.8 Completed WF/PC-2  5476 (Continuum Snapshots of 3CR Radio Galaxies) 

       The WF/PC-2 was used to make snapshot images of radio galaxies 3C184.0
and 3C294.0 as part of a continuum survey and to study the galaxies'
morphology. The observations were executed as scheduled, and no anomalies
were noted.

   1.9 Completed WF/PC-2 5629 (WF/PC-2 Cycle 4 Photometric Calibration
Monitor 1C: 4-Chip STD in F170W)

       The WF/PC-2 was used to make photometric calibration observations of
the ultraviolet standard star GRW+70D582. The observations were executed as
scheduled, and no anomalies were noted. 

   1.10 Completed WF/PC-2 5352 (Gravitational Lensing Studies With HST: Dark
Matter and High Redshift) 

       The WF/PC-2 was used to make a deep image of the gravitationally
lensed system CL2244-02. The main target is a set of giant arcs within the
system. The observation was completed with no reported problems. 

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 8
                                        Successful : 8

                          Scheduled Reacquisitions : 10
                                        Successful : 10

   2.2 FHST Updates: 

                              Scheduled : 6
                             Successful : 6

   2.3 Significant HSTARs: None

   2.4 Operations Notes: 

On Sunday, the COSTAR Deployable Optical Bench (DOB) was successfully moved
in order to improve the FOC focus.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH
                     -END-