HUBBLE SPACE TELESCOPE

                        DAILY REPORT #2484

PERIOD COVERED:  0000Z (UTC) 10/21/99 - 0000Z (UTC) 10/22/99

Daily Status Report as of 295/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

    1.1 Completed Two Sets of 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 STIS/MA1/MA2 8144 (UV Spectroscopic Snapshots of FUSE AGN 
Targets)

        The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was 
used to make far ultraviolet spectrographic snapshot observations of the 
FUSE AGN target TON951.  This object is currently scheduled to be observed 
by the Far Ultraviolet Spectroscopic Explorer {FUSE}.  The observations 
were executed as scheduled, and no anomalies were noted.

    1.3 Completed STIS/CCD/MA1 8171 (HST Far-UV Imaging and Spectra of 
Jupiter's Aurora During the Galileo Extended Mission)

        The Space Telescope Imaging Spectrograph (CCD and MA1) was used to 
make far-ultraviolet spectrographic observations of the aurora on the south 
end of the planet Jupiter as part of the extended Galileo Mission.  This is 
to study the nature of the satellite auroral footprints in Jupiter's 
atmosphere.  The observations were completed as planned, and no problems 
were reported.

    1.4 Completed WF/PC-2 8444 (WF/PC-2 CYCLE-8 Internal Monitor)

        The WF/PC-2 was used to make a bias, and an internal flat, 
observation as part of a Cycle-8 monitoring program to monitor the health 
of the cameras.  A variety of internal exposures are obtained in order to 
provide a monitor of the integrity of the CCD camera electronics in both 
bays {gain 7 and gain 15}, a test for quantum efficiency in the CCDs, and a 
monitor for possible buildup of contaminants on the CCD windows.  The 
observations were executed as scheduled, and no anomalies were noted.

    1.5 Completed 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.

    1.6 Completed STIS/MA2 8275 (Ultraviolet Snapshots of 3CR Radio Source 
Counterparts at Low Z)

        The Space Telescope Imaging Spectrograph (MA2) was used to make 
ultraviolet snapshot observations of the radio galaxy 3C35.0.  Radio 
galaxies are an important class of extragalactic objects, representing one 
of the most energetic astrophysical phenomena, while extraordinarily useful 
as probes of their environments and of the early Universe.  The 
observations were completed as scheduled, and no anomalies were reported.

    1.7 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.

    1.8 Completed Two Sets of 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.

    1.9 Completed STIS/CCD 8262 (Nuclear Kinematics of the Dense Globular 
Cluster M-15)

        The Space Telescope Imaging Spectrograph (CCD) was used to make 
observations of star HD122563 as part of the study of the nuclear 
kinematics of the dense globular cluster M-15.  The high central density of 
M-15 makes it unique for probing the structure and evolution of globular 
clusters.  The observations were completed as planned, and no anomalies 
were reported.

    1.10 Completed Two Sets of WF/PC-2 7339 (Sizes and Structures of Faint 
Blue Compact Galaxies that are New Candidates for Proto-Spheroidal Galaxies)

        The WF/PC-2 was used to obtain two-band WFPC-2 images of a unique 
sample of faint blue compact galaxies SA68-17418 and SA68-3307 at redshifts 
of z ~ 0.7, that are excellent new candidates for being spheroidal 
galaxies, caught in the act of undergoing a major star-forming event.  The 
observations completed with no reported anomalies.

    1.11 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.

    1.12 Completed Three Sets of STIS/CCD 8549 (POMS Test Proposal: STIS 
non-scripted parallel proposal continuation III)

        The Space Telescope Imaging Spectrograph (CCD) was used to make 
high galactic latitude observations as part of a non-scripted POMS Test 
Proposal. The observations were completed as scheduled, and no problems 
were reported.

    1.13 Completed WF/PC-2 8194 (Evolution of High-Redshift Seyfert Galaxies)

        The WF/PC-2 was used to make observations of the high-redshifted 
Seyfert galaxy Gal- 105300 in order to study its evolution.  The 
observations will provide insights into the Seyfert phenomenon at 
intermediate redshift and will complement similar HST studies of normal 
galaxies, clusters and quasars.  The observations were executed as 
scheduled, and no anomalies were noted.

    1.14 Completed STIS/CCD 8422 (Imaging Sensitivity and PSF Library C8)

        The Space Telescope Imaging Spectrograph (CCD) was used to make 
Point Spread Function (PSF) observations using standard star 
GRW+70D582.  This program has several goals: {1} to improve the calibration 
of the on-axis imaging sensitivity of STIS; {2} to obtain high S/N 
observations stars {both saturated and unsaturated} for a PSF library, and 
{3} to obtain narrow-band observations of a star field to improve on the 
STIS PSF model.  The observations were completed as scheduled, and no 
anomalies were reported.

    1.15 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 KK021.  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

    1.16 Completed STIS/CCD 8111 (CS 22892--052: A Rosetta Star for the Age 
and Early History of the Galaxy)

        The Space Telescope Imaging Spectrograph (CCD) was used to make 
observations of the "Rosetta" star CS 22892-052.  These observations should 
provide significant new information about the early history of the galaxy, 
specifically the nature of the earliest generations of stars and the types 
of nucleosynthetic processes that occurred in those stars.  The 
observations were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

    2.1 Guide Star Acquisitions:

                             Scheduled Acquisitions: 8
                                         Successful: 8

                          Scheduled Re-acquisitions: 7
                                         Successful: 7

    2.2 FHST Updates:

                               Scheduled: 17
                              Successful: 17

    2.3 Operations Notes:

        The SSR EDAC error counter was cleared twice as directed by ROP SR-1.

        The SSM ICD Zone 2 Mean Temperature flagged out-of-limits at 
294/135859Z.  The reported value was 15.92 degC; the limit, -16.00 
degC.  HSTAR 7327 documents the event.

        A STIS EMC retry occurred at 295/0750Z.  Per ROP NS-112, the STIS 
error counter was cleared at 295/0825Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

        Continuation of normal science observations and calibrations.

/DMH