HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2152

PERIOD COVERED:  0000Z (UTC) 06/24/98 - 0000Z (UTC) 06/25/98

Daily Status Report as of 176/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 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.

   1.2 Completed STIS/CCD 7645 (STIS FUV-MAMA Cycle 7 Flats)

       The Space Telescope Imaging Spectrograph (CCD) was used to make
far-ultraviolet flat calibration images.   This program will obtain
FUV-MAMA flat-field observations with the Kr lamp for the construction of
on-orbit D-flats for G140M.  A dark calibration image was also taken.  The
observations were completed as planned, and no anomalies were reported.

   1.3 Completed Three 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.

   1.4 Completed NIC/3 7841 (HST/NICMOS Observations of the Nearest
Embedded Cluster: the L1688 {Rho Oph} Protostellar Region)

       The Near Infrared Camera (Camera Three) was used to make
observations protostellar region of the nearest young cluster L1688
(positions 1, 2, 3 and 4) ( a.k.a., Rho Oph).  This cluster is unique in
its proximity to Earth, only 125 pc away; and in its high proportion of
optically invisible protostars.  The observations were executed as
scheduled, and no anomalies were noted.

   1.5 Completed WF/PC-2 8049 (Long WF/PC-2 Decontaminations during 2nd
NIC/3 Campaign)

       The WF/PC-2 was used to make long decontamination procedures as part
of the second NIC/3 campaign.  Each decon is followed by five 30-minute
darks.  During this time, no external science WF/PC-2 observations were
executed.  The decontaminations were executed as scheduled, and no
anomalies were noted.

   1.6 Completed NIC/1/2/3 7830 (IR Spectra for Known-Mass M Dwarfs)

       The Near Infrared Camera (Camera One, Two and Three) was used to
make infrared spectrographic observations of M-Class dwarf star J1228-1547.
Over the last decade there has been considerable debate on two major issues
in the low-mass star literature: {1} the effective temperature scale for M
dwarfs and its relation to mass and luminosity and {2} the conversion from
an absolute magnitude in some passband to a bolometric magnitude.  The
observations were executed as scheduled, and no anomalies were noted.

   1.7 Completed NIC/1/2/3 7919 (NICMOS Camera 3 Campaign Snapshots)

       The Near Infrared Camera (Camera Three) was used to make images of
galaxy NGC-976 as part of the NICMOS Camera 3 campaign snapshots.  The
proposal is to obtain wide field snapshot images of nearby galaxies in
Paschen Alpha which is inaccessible from the ground.  The observations were
executed as planned, and no anomalies were reported.

   1.8 Completed NIC/1/2/3 7967 (HST Observations of a Galaxy at Z=5.34)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of galaxy 0140+326RD which is located at a distance of Z
= 5.34.  This galaxy is the only spectroscopically confirmed object at z>5.
The observations were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 5
                                        Successful : 5

                          Scheduled Reacquisitions : 7
                                        Successful : 7

   2.2 FHST Updates:

                              Scheduled : 10
                             Successful : 10

   2.3 Operations Notes:

       The Battery #4 Capacity Test continues.  Discharge terminated
nominally at 15 volts by the special hardware test limit at 175/1319Z.
Recharge began at 175/1412Z (normal orbit day entry).  Charge acceptance
behavior is typical relative to that seen in other batteries.  Capacity
recovery is nominal.

       Using ROP SR-1, the SSR EDAC error counter was cleared three times.

       A real-time map was commanded at 175/1400Z.

       The NSSC-1 status buffer was dumped and reset at 175/1622Z per ROP NS-2.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH