HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2131

PERIOD COVERED:  0000Z (UTC) 05/26/98 - 0000Z (UTC) 05/27/98

Daily Status Report as of 147/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Two Sets of NIC/2 7330 (The Fueling of Active Nucleii: A
NICMOS Snapshot Survey)

       The Near Infrared Camera (Camera Two) was used to probe the dark
matter distribution of NGC-7130 and NGC-4968 far from their centers by
observing intervening absorption from the MgII doublet (lambda 2800) in the
spectrum of one background QSO located in a geometrically optimal position.
HST observations are required because this feature is in a wavelength range
not accessible from the ground, and the QSO magnitudes and expected
strength of absorption make IUE observations unfeasible.  The proposal
completed as expected with no anomalies.

   1.2 Completed Two Sets of WF/PC-2 7712 (WF/PC-2 Cycle 7 Supplemental
Darks pt2/3)

       The WF/PC-2 was used to make a series of Cycle 7 supplemental
calibration darks.  This dark calibration program obtains three dark frames
every day to provide data for monitoring and characterizing the evolution
of hot pixels.  The observations were executed as scheduled, and no
anomalies were noted.

   1.3 Completed STIS/CCD 7926 (CCD Dark and Bias Monitor -- Continued)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
several dark and bias calibration observations.  This is to measure CCD
dark current and bias rates for the two supported amplifier settings {gain
= 1 and gain = 4} in order to gather data for making superdarks and
superbiases.  These observations will also track the growth of hot pixels
on the CCD in general and within the various target acquisition apertures
specifically.  The observations were executed as scheduled, and no
anomalies were noted.

   1.4 Completed NIC/1/2/3 7372 (Fundamental Plane, Morphology-Density
Relation, and Lensing in the z=0.83 Cluster)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of galactic cluster Gal-Clus-1.  These data will be used
to augment the HST mosaics of the clusters with extensive ground-based
spectroscopy and imaging at the Keck, MMT, NTT, and WHT telescopes.  The
observations were completed as planned, and no problems were reported.

   1.5 Completed Two Sets of STIS/CCD 7908 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
calibration observations as part of the POMS Test Proposal.  This was a
STIS non-scripted parallel proposal.  The observations were completed as
planned, and no problems were reported.

   1.6 Completed Two Sets of NIC/1/2 7956 (NICMOS Camera 1 Narrow Band
Filter Pointed Super Flats)

       The Near Infrared Camera (Cameras One and Two) was used to obtain
sequences of NICMOS Camera One narrow band filter flat fields.  The
observations will be used to build high S/N NICMOS flat fields for the
different filters.  The observations were completed as planned, and no
problems were noted.

   1.7 Completed Two Sets of WF/PC-2 7909 (POMS Test Proposal: WF II
Parallel Archive Proposal)

       The WF/PC-2 was used to make parallel observations as part of the
POMS test proposal.  This test proposal is designed to simulate scientific
plans.  The observations were completed as planned, and no problems were
reported.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 4
                                        Successful : 4

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates:

                              Scheduled : 9
                             Successful : 9

   2.3 Operations Notes:

       Using ROP SR-1, the EDAC error counts were cleared two times.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH