HUBBLE SPACE TELESCOPE

                              DAILY REPORT #1374

PERIOD COVERED:  0000Z (UTC) 04/20/95 - 0000Z (UTC) 04/21/95

Daily Status Report as of 111/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed FOS/BL 6146 (FOS Location of Spectra and Aperture - Part 2)

     The Faint Object Spectrograph (Blue Side) was used to conduct a test to
determine the repeatability of positioning the filter-grating wheel. All
observations were internal. A wave length calibration image was also taken.
All observations were executed as scheduled, and no anomalies were noted.

   1.2 Completed WF/PC-2 5699 (A Study of the Arcsecond Gravitational Lens
1422+321: Cycle 4 Carryover)

       The WF/PC-2 was used to make arcsecond fine observations of the
gravitational lens system QSO1424P23. The WF/PC-2 images will be used to
locate the target for future FOS observations. The observations were
completed as planned, and no problems were reported. 

   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 5479 (Subarcsecond Structure in Nearby AGNs)

       The WF/PC-2 was used to make snapshot observations of the nearby
active galactic nuclei of MARK766 and MARK1325 to study the interactions
between the central  engine, the stars, and the interstellar matter in these
AGNs. The observations were executed as scheduled, and no anomalies were
noted. 

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

       The WF/PC-2 was used to make images of galaxy NGC4725 to be used in
measuring the periods of Cepheid variable stars within this galaxy. The
observations were completed as planned, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 5
                                        Successful : 5

                          Scheduled Reacquisitions : 10
                                        Successful : 10

   2.2 FHST Updates: 

                              Scheduled : 9
                             Successful : 9

   2.3 Significant HSTARs: None

   2.4 Operations Notes: 

       There were no reported operational problems.

3.0 ANOMALY STATUS:

   3.1 Significant New Anomalies: None

   3.2 Significant Unresolved Anomalies: None

4.0 SIGNIFICANT FORTHCOMING EVENTS: 

        The Flight Software (Version 9.5/ Co-processor and DF-224 Sections)
is scheduled to be uplinked to the spacecraft this afternoon (Friday, April
21, 1995), and will be initiated on Sunday April 23, 1995 at 113/1000Z.

/DMH
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