Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_97/hst_status_07_03_97 Дата изменения: Thu Jul 3 14:26:38 1997 Дата индексирования: Sun Dec 23 10:50:32 2007 Кодировка: Поисковые слова: ultraviolet

HUBBLE SPACE TELESCOPE

DAILY REPORT #1912

PERIOD COVERED: 0000Z (UTC) 07/02/97 - 0000Z (UTC) 07/03/97

Daily Status Report as of 184/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed Four Sets of WF/PC-2 6253 (Pure Parallel Archive Program)

The WF/PC-2 was used to execute a pure parallel program taking
ultraviolet observations running concurrently with prime science
observations. The intent is to search for extra-galactic sources with flux
excesses at 3000 A0 and galactic sources with excesses at 1600 A0. The
observations were completed as planned, and no problems were reported.

1.2 Completed Eight Sets of NIC/1/2/3 7701 (NICMOS Short One Orbit Parallel)

The Near Infrared Camera (Cameras One, Two and Three) was used as
part of a short NICMOS one orbit parallel program, to obtain "JHK" imaging
of sky regions when another instrument is prime. The observations were
completed as scheduled, and no anomalies were reported.

1.3 Completed Twelve Sets of NIC/1/2/3 7729 (NICMOS Short One Orbit
Parallel)

The Near Infrared Camera (Cameras 1, 2 and 3) was used to obtain
"JHK" imaging of sky regions while another instrument was prime. These
observations were part of the short NICMOS one orbit parallel program.
The observations were executed as scheduled, and no anomalies were noted.

1.4 Completed STIS/CCD 7088 (STIS CCD Coronograph Occulting Bar
Scattered Light)

The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of the star GD153 in order to study the scattered light
profile from the occulting bars available for STIS imaging (50CORON) and
from the spectroscopic apertures (52x0.2F1) using the CCD. The
observations were completed as scheduled, and no anomalies were reported.

1.5 Completed Three Sets of WF/PC-2 6194 (WF/PC-2 Cycle 5: Polarization
Proposal)

The WF/PC-2 was used to make polarization observations of star
BD+64D106 at four different spacecraft roll angles. This should permit a
detailed and independent calibration of each polarizer quad. The
observations were executed as scheduled, and no anomalies were noted.

1.6 Completed Two Sets of WF/PC-2 7202 (The WF/PC-2 B Band Parallel
Survey: A Systematic and Synoptic Study of Galaxy Formation and Evolution -
Short Orbit Case)

The WF/PC-2 was used to make observations as part of a B-Band Survey
to make synoptic study of galaxy formation and evolution. These
observations were taken in parallel with the prime science observations.
They were completed as planned, and no anomalies were reported.

1.7 Completed STIS/CCD 7123 (MAMA and CCD Spectroscopy of SN1987A)

The Space Telescope Imaging Spectrograph (CCD) was used to make
observations of the super-nova remnant LMC-SN1987 which is located in the
Large Magellanic Cloud. This is to study SN-1987A and its nebula by taking
spectra at both ultraviolet and optical wavelengths with STIS to obtain a
spatially resolved map of the debris and the circumstellar rings. A
waveline calibration image was also taken. The observations were completed
as planned, and no anomalies were reported.

1.8 Completed STIS/MA2 7604 (Cycle 7 MAMA Dark Measurements)

The Space Telescope Imaging Spectrograph (MA2) was used to make MAMA
dark measurements. These darks will be used in later image reductions and
also trended over the instrument's life time as an indicator of the
detector's degradation or damage. The observations were completed as
scheduled, and no problems were reported.

1.9 Completed FGS 7489 (Triton's Atmospheric Structure: Problems With
Present Models)

The Fine Guidance Sensors were used to make photometric and
astrometric observations of the Moon Triton during an occultation of a
bright field star. This to observe these events using the FGS both as a
high-speed photometer and in its normal role for occultation astrometry
before and after each event. The observations were executed as scheduled,
and no anomalies were noted.

1.10 Completed STIS/CCD 7659 (Daily Darks to Update Acquisition Bad
Pixel Table)

The Space Telescope Imaging Spectrograph (CCD) was used to make dark
calibration images in order to update the acquisition bad pixel table.
Daily hot pixel lists can also be used for science data analysis. The
observations were executed as scheduled, and no anomalies were noted.

1.11 Completed Seven Sets of STIS/CCD 7601 (CCD Dark and Bias Monitor)

The Space Telescope Imaging Spectrograph (CCD) was used to conduct
bias and dark monitoring. Also, observations were made to track the growth
of hot pixels on the CCD in general and within the various target
acquisition apertures specifically. The observations were completed as
planned, and no anomalies were reported.

1.12 Completed FOC/96 6570 (High-Redshift Galaxies and Their
Contribution to the Ionizing Background)

The Faint Object Camera (f/96) was used to make ultraviolet
objective-prism spectroscopy observations of the high-redshifted galaxy
GAL-CFRS-0 in order to study its contribution to the ionization background,
and to study its ultraviolet spectral energy distribution from shortward of
the Lyman limit to longward of Lyman-Alpha. The observations were executed
as scheduled, and no anomalies were noted.

1.13 Completed 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-6890 far from the center 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.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 10
Successful : 10

Scheduled Reacquisitions : 9
Successful : 9

A loss of lock occurred at 184/0140Z. HSTAR 6112 was written.

2.2 FHST Updates:

Scheduled : 24
Successful : 24

2.3 Operations Notes:

There were no significant problems during this operational day.

The SSR Interupt Log was dumped at 184/0556Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Continuation of normal science and SMOV operations.

/DMH