HUBBLE SPACE TELESCOPE


                       DAILY REPORT #1878

PERIOD COVERED:  0000Z (UTC) 05/14/97 - 0000Z (UTC) 05/15/97

Daily Status Report as of 135/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6902 (WF/PC-2 Cycle 6 Photometric Calibration =
Monitor UV/OPT STD)

       The WF/PC-2 was used to make both ultraviolet and optical =
photometric observations of the standard star GRW+70D582 as part of a =
Cycle 6 calibration procedure.  These observations are done immediately =
before and after decontamination procedures.  The observations were =
completed as planned, and no problems were reported. 

   1.2 Completed STIS/CCD 7063 (STIS SMOV CCD Contamination Monitor)

       The Space Telescope Imaging Spectrograph (CCD) was used to make =
observations of standard star GD153 in order to  measure flux and look =
for any gross changes over time that might indicate contamination.  The =
observations were completed as scheduled, and no anomalies were reported. =


   1.3 Completed Three Sets of WF/PC-2 7203 (Cosmology with the Medium =
Deep Survey - Short Orbit Cases)

       The WF/PC-2 was used to take short (about 20-minute) exposures, to =
be taken in parallel with the prime science observations, using the I =
filter.  These exposures are part of the medium-deep survey, which =
emphasizes exposures that will be useful in obtaining cosmological =
parameters.  The observations were completed as planned, and no problems =
were reported.

   1.4 Completed Three Sets of NIC/1/2/3 7048 (NICMOS Parallel Thermal =
Background Test)

       The Near Infrared Cameras (Cameras One, Two and Three) were used =
to make observations of an object designated as Target-1 in order execute =
measurements of the stability of the HST thermal emissions.  The observati=
ons were executed as scheduled, and no problems were reported. 

   1.5 Completed WF/PC-2 6909 (WF/PC-2 Cycle 6 Calibration: Earth Flats

       The WF/PC-2 was used to make observations of the bright Earth to =
obtain streak flats which are used to construct high quality flat fields =
for the WF/PC-2 filter set.  The observations were executed as scheduled, =
and no anomalies were noted.

   1.6 Completed WF/PC-2 7588 (Measuring Q0 With Type IA Supernovae)

       The WF/PC-2 was used to make observations of supernova SN1997A3 in =
order to measure the Q0 parameter.  This is in order to produce a precise =
Hubble diagram which can be used to measure the cosmic deceleration and =
global curvature of the universe.  HST can make an essential contribution =
by providing photometry with substantially higher precision and better =
temporal coverage than can be obtained from the ground.  The observations =
were executed as scheduled, and no anomalies were noted.

   1.7 Completed WF/PC-2 6346 (Snapshot Survey of the Ultraluminous IRAS =
Galaxy Sample-Part 1 High)

       The WF/PC-2 was used to make snapshot survey observations of the =
ultraluminous IRAS galaxy QDOTULIR13.  These data will be searched for =
multiple cores, which imply a merger has occurred, and for starburst =
regions.  The guide star acquisition for this proposal failed to RGA =
control at 134/114800Z.  HSTAR 6067 was written.  No further anomalies =
were noted.

   1.8 Completed STIS/CCD 7147 (STIS Fine Corrector Alignment With CCD)

       The Space Telescope Imaging Spectrograph (CCD) was used to make =
observations of the standard star BD+28D4211 in order to perform a fine =
corrector alignment with the CCDs such that the image quality at the slit =
plane is optimized.  The observations were completed as planned, and no =
anomalies were reported. 

   1.9 Completed WF/PC-2 6802 (Cosmology With the Medium Deep Survey)

       The WF/PC-2 was used to make observations taken in parallel with =
the prime science observations as part of the Medium Deep Sky Survey.  =
The observations were executed as scheduled, and no problems were =
reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 8
                                        Successful : 7

       As detailed in 1.7, one acquisiton failed.

                          Scheduled Reacquisitions : 8
                                        Successful : 8

   2.2 FHST Updates: 

                              Scheduled : 15
                             Successful : 15

   2.3 Operations Notes: 

       There were no significant operational problems.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

       Continuation of normal science and SMOV operations.

/DMH