HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1603

PERIOD COVERED:  0000Z (UTC) 04/01/96 - 0000Z (UTC) 04/02/96

Daily Status Report as of 093/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6183 (WF/PC-2 Cycle 5 Calibration: Decon)

       The WF/PC-2 was used to make some internal flat, K-Spot, and dark =
calibration images.  The purpose is to define decontamination procedures =
to be run during Cycle 5.  The calibration observations were completed as =
scheduled, and no anomalies were reported.

   1.2 Completed WF/PC-2/FOS/BL 6679 (HST Investigation of a Bright New =
Comet)

       Both the WF/PC-2 and the Faint Object Spectrograph (Blue Side) =
were used to make observations of the bright new comet Hyakutake (aka, =
The Great Comet of 1996).  The images will yield information of the =
nuclear size and coma near the nucleus.  Among the goals are the =
abundance determination of volatile components, and the search for =
previously undetected species.  A dark calibration image was also taken.  =
The observations were completed as planned, and no anomalies were noted.

   1.3 Completed FGS 5657 (Duplicity Among Hyades Stars: Cycle 4 High)

       The FGSs (TRANS-Mode) were used to make astrometric observations =
of star VA529 located in the Hyades cluster in an attempt to find a close =
binary.  The observations were executed as scheduled, and no anomalies =
were noted.

   1.4 Completed FOS/BL 6244 (HR 4796A: A Possible Protoplanet?)

       The Faint Object Spectrograph (Blue Side) was used to make =
observations of object RHY182 which is thought to be a possible =
protoplanet system.  This star is a main sequence A type star with more =
circumstellar dust than is located around Beta Pic.  The observations =
were completed as planned and no anomalies were reported.

   1.5 Completed FGS 6326 (Monitor the Long Term Stability of FGS#3 - =
Early 1996)

       FGS#3 was used to make astrometric observations of star OF956 and =
other nearby standard stars which are located in the M-35 open star =
cluster in order to test the long term stability of the FGS unit.  The =
observations were completed as planned, and no problems were reported.

   1.6 Completed FGS 6047 (Calibrating the Mass Luminosity Relation at =
the End of the Main Sequence)

       The FGS were used to make astrometric observations of star GL234 =
as part of a study to determine its mass luminosity relationship.  The =
purpose is to measure the precise parallax and relative orbit of its =
faint companion.  The observations were completed as planned, and no =
problems were reported.

   1.7 Completed WF/PC-2/FOS/RD 6613 (The Origin of C_2 in Comets)

       The WF-PC-2 and the Faint Object Spectrograph (Red Side) was used =
to make spectrographic observations of the new comet Hyakutake in order =
to study the origin of C-2 within the comet.  One of the acquisitions for =
this proposal, at 092/2332Z, failed to fine lock backup on FGS-2 only.  =
HSTAR 5558 was written.  The observations were executed as scheduled, and =
no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 14
                                        Successful : 13

       As documented in HSTAR 5558, the acquisition at 092/2232Z failed =
to fine lock backup on FGS-2 only.

                          Scheduled Reacquisitions : 0
                                        Successful : 0

   2.2 FHST Updates: 

                              Scheduled : 3
                             Successful : 3

   2.3 Operations Notes: 

       A TTR was written for a 46-second non-recoverable 32K data loss =
due to a problem with the MABE controller at STGT.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

        Nothing at this time.

/DMH