HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2048

PERIOD COVERED:  0000Z (UTC) 01/27/98 - 0000Z (UTC) 01/28/98

Daily Status Report as of 028/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

   1.1 Completed Four Sets of STIS/MA1/MA2 7920 (STIS MAMA Pure Parallels
for NIC/3 HDF)

       The Space Telescope Imaging Spectrograph (MA1 and MA2) was used to
make parallel field, ultraviolet imaging to search for Lyman-break galaxies
at z>2.0, and z>1.0.  The observations were completed as planned, and no
problems were reported.

   1.2 Completed Two Sets of STIS/MA1/MA2 7921 (STIS MAMA Pure Parallels
for NIC/3 HDF - Spec)

       The Space Telescope Imaging Spectrograph (MA1 and MA2) was used to
make pure parallel, ultraviolet observations to be used in the NIC/3 HDF
campaign.  The MAMA images will be used to search for Lyman-break galaxies
at z>2.0, and z>1.0.  The observations were executed as scheduled, and no
anomalies were noted.

   1.3 Completed STIS/CCD 7711 (STIS CCD G750L Fringing Flats.)

       The Space Telescope Imaging Spectrograph (CCD) was used to
investigate and monitor the STIS CCD flat-field fringing in the G750L
grating at its nominal wavelength setting {7751A}.  WAVECALs were also
taken at the same gain and wavelength setting.  Typical S/N = 100 for each
integration, and gain = 4 on each.  The observations were executed as
scheduled, and no anomalies were noted.

   1.4 Completed NIC/3 7815 (NICMOS Earth Flats)

       The Near Infrared Camera (Camera Three) was used to make a Earth
flat field calibration image.  This proposal obtains a series of earth
flats for a subset of narrow and medium band NIC/3 filters in advance of
the NIC/3 campaign.  These flats will be used to generate the master flats
for narrow-band filters and to determine the OTA illumination pattern as a
function of wavelength.  The observations were completed as planned, and no
anomalies were reported.

   1.5 Completed NIC/1/2/3 7456 (Water in Protoplanetary Disks)

       The Near Infrared Camera (Cameras One, Two, and Three) was used to
make observations of the protoplanetary disk around V1331-Cyg to search for
water in its disk.  This survey will be the first to take a detailed look
at the gas phase properties of pre-main-sequence disks at AU distances.
The observations were completed as scheduled, and no anomalies were
reported.

   1.6 Completed Three Sets of NIC/1/3 7813 (NIC/3 HDF Darks)

       The Near Infrared Camera (Cameras One and Three) was used to make
internal dark calibration images which will be used when processing the
Hubble Deep Field images during the first NICMOS Camera Three campaign.
The observations were executed as scheduled, and no anomalies were noted.

   1.7 Completed NIC/1/2/3 7235 (Observations of the Hubble Deep Field)

       The Near Infrared Camera (Cameras One, Two and Three) was used to
make observations of the Hubble Deep Field area HDF-123645.  This program
observes a portion of the Hubble Deep Field with all three NICMOS cameras
in the F160W and F110W filters to produce infrared images equivalent in
depth to the existing WF/PC-2 HDF images.  The observations were executed
as scheduled, and no anomalies were noted.

   1.8 Completed Three Sets of STIS/CCD 7900 (STIS CCD Pure Parallels for
NIC/3 HDF)

       The Space Telescope Imaging Spectrograph (CCD) was used to make pure
parallel, ultraviolet, slitless, observations with the NIC/3 Camera.  This
proposal will run during the orbits devoted to NICMOS HDF prime proposal
7235.  The observations were completed as scheduled, and no anomalies were
reported.

   1.9 Completed Two Sets of STIS/CCD 7918 (STIS CCD Pure Parallels for
NIC/3 HDF Spec)

       The Space Telescope Imaging Spectrograph (CCD) was used to make pure
parallel, ultraviolet, slitless, spectrographic observations with the prime
Hubble Deep Field observations.  This proposal will run during the orbits
devoted to NICMOS HDF prime proposal 7235.  The observations were completed
as planned, and no problems were reported.

   1.10 Completed S/C 5582 (FOC/48 Monthly Activation (Camera Section
Only): Cycle 4)

        This proposal was executed as scheduled, and no anomalies were noted.

   1.11 Completed NIC/1/2/3 7322 (The IMF Below 1 Msun in Young Clusters:
1.9 Micron Water Band Imaging of IC348)

       The Near Infrared Camera (Cameras One, Two, and Three) was used to
make observations of cluster LHS-2924.  This study will be the first to
obtain spectral types for a young cluster population complete to K=16, and
thereby quantify, to unprecedentedly high precision, the IMF below 1M{sun}
in young clusters.  As described in 2.1, the initial acquisition for this
proposal defaulted to fine lock on one FGS only.  Four observations may
have been affected.  Otherwise, the observations were executed as
scheduled, and no anomalies were reported.

   1.12 Completed NIC/3 7459 (The Age and Content of a {Proto}Galaxy
Cluster at z=2.39)

       The Near Infrared Camera (Camera Three) was used to make
observations of the proto-galaxy cluster Gal-Clust-1239.  Our WF/PC-2
observations of the field around the radio galaxy 53W002 {z=2.39} have
discovered a remarkable population of Lyman Alpha emission-line objects at
the same redshift, with 18 identified in a single WF/PC-2 mosaic.  The
observations were executed as scheduled, and no anomalies were noted.

   1.13 Completed Seven Sets of WF/PC-2 7620 (WF/PC-2 Cycle 7 Standard Darks)

       The WF/PC-2 was used to make a series of Cycle 7 standard dark
calibration images.  This dark calibration program obtains dark frames
every week in order to provide data for the ongoing calibration of the CCD
dark current rate, and to monitor and characterize the evolution of hot
pixels.  The observations were executed as scheduled, and no anomalies were
noted.

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions:

                            Scheduled Acquisitions : 6
                                        Successful : 6

       As documented in HSTAR 6329, the acquisition at 027/211025Z
defaulted to fine lock on FGS-3 only when FGS-1 had a scan step limit being
exceeded during its fine lock walkdown.  The first four observations in the
proposal described in 1.11 may have been affected.

                          Scheduled Reacquisitions : 10
                                        Successful : 10

   2.2 FHST Updates:

                              Scheduled : 11
                             Successful : 11

   2.3 Operations Notes:

       All NICMOS Hubble Deep Field proposals executed nominally.  The
NICMOS instrument continues to perform excellently.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

       Continuation of normal science observations and calibrations.

/DMH