HUBBLE SPACE TELESCOPE

                       DAILY REPORT #2449

PERIOD COVERED:  0000Z (UTC) 09/01/99 - 0000Z (UTC) 09/02/99

Daily Status Report as of 245/0000Z

OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

   1.1 Completed WF/PC-2 8443 (WF/PC-2 Cycle-8 Supplemental Darks pt1/3)

       The WF/PC-2 was used to obtain three dark frames every day to provide
data for monitoring and characterizing the evolution of hot pixels.  The
observations were completed as planned, and no problems were reported.  

   1.2 Completed Two Sets of WF/PC-2 8090 (POMS Test Proposal: WF-II Parallel
Archive Proposal Continuation)

       The WF/PC-2 was used in the parallel mode to make some low galactic
latitude archive observations.  The program will be used to take parallel
images of random areas of the sky.  The observations were executed as
scheduled, and no anomalies were noted.  

   1.3 Completed STIS/CCD 8409 (STIS CCD Bias Monitor C8)

       The Space Telescope Imaging Spectrograph (CCD) was used to make a CCD
bias calibration observation.  This is to monitor the bias in the 1x1, 1x2,
2x1, and 2x2 bin settings at gain=1, and 1x1 at gain = 4, to build up high-S/N
superbiases and to track the evolution of hot columns.  The observations were
executed as scheduled, and no anomalies were reported.  

   1.4 Completed WF/PC-2 8263 (Snapshots of Sub-mJy Starburst Galaxies)

       The WF/PC-2 was used to make observations of the starbursting galaxy
Gal-011043.  Some of the most ambitious and widely cited extragalactic
observations in recent years have been the constraints made on the star
formation history of the Universe.  The observations were completed as planned,
and no anomalies were reported.  

   1.5 Completed STIS/CCD 8408 (STIS CCD Dark Monitor C8)

       The Space Telescope Imaging Spectrograph (CCD) was used to make a CCD
bias calibration observation.  This is to monitor the darks for the STIS CCD. 
The observations were executed as scheduled, and no anomalies were reported.  

   1.6 Completed WF/PC-2 6631 (Imaging a Cluster of Galaxies at Redshift 2.38)

       The WF/PC-2 was used to make observations of the galactic cluster
Gal-Clus-2073 which is located at a distance of z = 2.38.  This is a sub-set of
about four galaxies within the cluster that forms a very compact {< 100 kpc}
galaxy group and may be merging to form a giant elliptical galaxy.  The
observations were executed as scheduled, and no anomalies were noted.  

   1.7 Completed Two Sets of STIS/MA1 8426 (Cycle 8 MAMA Dark Measurements)

       The Space Telescope Imaging Spectrograph (MA1) was used to make a
routine Cycle-8 MAMA dark noise calibration measurement.  This proposal will
provide the primary means of checking on the health of the MAMA detectors. 
This is done through frequent monitoring of the background count rate.  The
observations were completed as planned, and no problems were reported.  

   1.8 Completed Five Sets of STIS/CCD 8406 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation V)

       The Space Telescope Imaging Spectrograph (CCD) was used to make both low
and high galactic latitude observations taken in parallel with the prime
science observations as part of a POMS proposal.  This is a STIS non-scripted
parallel Condition V proposal.  The observations were completed as scheduled,
and no anomalies were reported.  

   1.9 Completed WF/PC-2 6657 (Resolving the Shocks in Powerful Radio Galaxies)

       The WF/PC-2 was used to make observations of the powerful radio galaxy
PK2250-41 in order to try to find the optical counterpart of its jets.  It is
clear that jet/cloud interactions play an important role in defining the
morphology, kinematics and ionization of the extended gas in active galaxies,
we are still far from understanding the physical mechanisms involved.  The
observations were executed as scheduled, and no anomalies were noted.  

   1.10 Completed WF/PC-2 8453 (Cycle 8 Polarization)

       The WF/PC-2 was used to make observations of the standard source star
G191B2B in order to verify the stability of the instrument’s polarization
calibration.  The observations were completed as planned, and no problems were
reported.  

   1.11 Completed WF/PC-2 7281 (Snapshot Survey of the B2 Sample of Radio
Galaxies)

       The WF/PC-2 was used to make snapshot survey observations of the B2
sample radio galaxy B2+0149+35.  This program is aimed to answer the following
key questions: How common are extended nuclear disks?  What is their
orientation and morphology?  How common are optical jets?  The observations
were executed as scheduled, and no anomalies were noted.  

   1.12 Completed WF/PC-2 8192 (A Snapshot Survey of Probable Nearby Galaxies)
       The WF/PC-2 was used to make a snapshot survey images of a probable
nearby galaxy KK083.  The census of galaxies in the Local Volume of space is
very incomplete, particularly at the faint end.  The observations were executed
as scheduled, and no anomalies were noted  

   1.13 Completed WF/PC-2/STIS/MA2 7410 (Deep UV Imaging of the Hubble Deep
Field)

       The WF/PC-2 was used to make ultraviolet observations of Hubble Deep
Field HDF-STIS-P.  The observations will extend the searches for Lyman break
galaxies to B~ 29, two magnitudes fainter than possible with the existing HDF
data and more than four magnitudes fainter than the current limit of
ground-based spectroscopy.  The observations were executed as scheduled, and no
anomalies were reported.  

2.0 FLIGHT OPERATIONS SUMMARY:

   2.1 Guide Star Acquisitions: 

                            Scheduled Acquisitions: 12
                                        Successful: 12

                         Scheduled Re-acquisitions: 4
                                        Successful: 4

   2.2 FHST Updates: 

                              Scheduled: 18
                             Successful: 18

   2.3 Operations Notes: 

       The flight operations team remains in the STOCC using CCS “A” string,
except for the period 244/1830Z to 244/2043Z when CCS “B” string was utilized.

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

       The NICMOSSS FPA temperature sensor for detector 1 was enabled at
244/1752Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS: 

       Continuation of normal science observations and calibrations.

/DMH