HUBBLE SPACE TELESCOPE

                       DAILY REPORT #1852

PERIOD COVERED:  0000Z (UTC) 04/08/97 - 0000Z (UTC) 04/09/97

Daily Status Report as of 099/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 6904 (WF/PC-2 Cycle 6 Cal.:Darks)

       The WF/PC-2 was used to make a series of several dark calibration =
images as part of a standard calibration within Cycle 6.  This =
calibration procedure is performed once per week as part of an on going =
CCD calibration to be used to monitor and characterize hot pixels.  The =
observations were executed as scheduled, and no anomalies were noted.

   1.2 Completed WF/PC-2 6363 (The Environments and Host Galaxies of =
BL-Lac Objects)

       The WF/PC-2 was used to make snapshot survey observations of =
BL-Lac object S4-0814+42 in order to study its environment and its host =
galaxies.  The goal is to investigate systematic trends in host galaxy =
type, unusual morphological features, nearby companion galaxies, etc.  =
The observations were executed as scheduled, and no anomalies were noted.

   1.3 Completed WF/PC-2 6443 (High Resolution Imaging of the Luminous =
Infrared Source IRAS 09104+4109)

       The WF/PC-2 was used to make high resolution images of the =
luminous infrared source IRAS09104+4109.  The nuclear spectrum from IRAS =
survey indicates the presence of a dust enshrouded quasar, yet the =
apparent ionizing flux of the AGN falls short of that required to produce =
the infrared luminosity by a large factor.  The observations were =
executed as scheduled, and no anomalies were noted. 

   1.4 Completed Two Sets of STIS/CCD 7092 (CCD Dark Rate and Read Noise)

       Observations were taken to measure CCD dark current and to gather =
data for making super darks.  A bias calibration observation was also =
completed.  The observations were completed as planned, and no anomalies =
were reported. 

   1.5 Completed WF/PC-2 7590 (Cosmological Parameters Omega and Lambda =
>From High-Redshift Type IA Supernovae)

       The WF/PC-2 was used to make observations of type 1A supernova =
SN9784 in order to study its redshift, making direct measurements of the =
cosmological parameters Omega, Lambda, and curvature (Omega_k) using Type =
1A supernovae (SNe 1a) as a calibrated "standard candle".  The =
observations were executed as scheduled, and no anomalies were noted.

   1.6 Completed WF/PC-2 6361 (High Resolution Imaging of X-Ray Selected =
AGNs)

       The WF/PC-2 was used to make high resolution  observations of the =
known, low, red-shifted, x-ray active, galactic nuclei (AGN) MS1231.4+1, =
MS1306.1-0 and MS1110.3+2.  These data will allow a study of the optical =
properties of an unbiased sample of AGN host galaxies.  The observations =
were completed as scheduled, and no problems were reported.

   1.7 Completed NIC 7034 (NICMOS Field Offset Mechanism Test)

       The NICMOS Near Infrared Cameras were used to conduct a field =
offset mechanism test.  A 25-point spiral dither pattern is used to =
generated a 5 x 5 grid of point source and thermal background =
observations in each camera.  The tests were conducted as scheduled, and =
no anomalies were reported. 

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions : 7
                                        Successful : 7

                          Scheduled Reacquisitions : 8
                                        Successful : 8

   2.2 FHST Updates: 

                              Scheduled : 19
                             Successful : 19

   2.3 Operations Notes: 

       The Battery #6 Capacity Test is continuing.  The battery was =
connected to solar array section 6 at 099/1426Z, and charging commenced =
at 099/1445Z.

       Two NICMOS HSTARs were submitted.  6019 documented parameter =
NTCPWR going out-of-limits low at 098/1652Z during SAA Level 1.  6020 =
recorded a detector 2 DC offset at 099/0821Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

       Continuation of normal science and SMOV operations.

/DMH