Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_93/hst_status_05_10_93 Дата изменения: Tue May 11 21:23:11 1993 Дата индексирования: Sun Dec 23 10:26:25 2007 Кодировка: Поисковые слова: ultraviolet

HUBBLE SPACE TELESCOPE
DAILY REPORT #884

PERIOD COVERED: 0800 EST
Daily Status Report as of 131/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed FOC/96 4353 (Hubble Space Telescope Imaging of Io: Cycle 3
High)

The Faint Object Camera was used to make ultraviolet and visible
images of Jupiter's moon Io in order to determine the abundance and
distribution of surface and atmospheric constituents. All
observations were made in single star fine lock. Three corrective
slews were successfully uplinked. The moon was well within the field
of view for each image, however, it was off center by about 1.5
arcseconds in declination. The observations were displayed in the
OSS, and hard copies were made for the co-invesigator.

1.2 Completed FOC/96 4804 (UV Imaging of Nearby Galaxies with the FOC/96)

The Faint Object Camera was used to make four 10 minute ultraviolet
exposures of nearby galaxy ESO-1033 using filter F220W. The first
two, and last observations were successful. The baseline guide star
acquisition failed to make single star fine lock, and then did make
course track (FGS 1) on the third observation. The observation
executed under this degraded tracking with no other problems. The
PCS CE reported that the FHST update failed the previous roll.

1.3 Completed GHRS/2 3472 (The Properties of Single Interstellar Clouds,
Cycle 2)

The High Resolution Spectrograph was used 27 spectral observations
with the Echelle spectrograph and grating G160M to make observations
of early-type star HD158962. This spectra will be used to study the
individual interstellar cloud between the Earth and this star. The
observations were reported to look fine.

1.4 Completed FOC/96 3801 (Search of QSOs suitable for Subsequent
Observations of He II)

The Faint Object Camera was used to make ultraviolet images of
quasar 2138-4427. These observations will measure its ultraviolet
flux levels to determine if its has sufficient ultraviolet flux for
subsequent observations using the HRS and FOS to look for Helium II
absorption features. The observations were executed as scheduled,
and no problems were reported.

1.5 Completed FOS/BL 4054 (Probing the Nuclear Regions of Seyfert Galaxy
NGC-5548)

The faint Object Camera was used to make observations of Seyfert
galaxy NGC-5548 looking for time variations in its continuum, and
emissions in Helium II and Carbon IV. The OSS monitored the
observations and assessed the data quality. No problems were
reported.

1.6 Completed WFC/PC 4109 (WF/PC Cycle 2 Calibration: Rapid Internal
Monitor)

Both the Planetary Camera and the Wide Field Camera were used to
make internal flat calibration images to check for new forms of
contamination (i.e., daisies and measles), and the return of quantum
efficiency hysteresis. The observations were executed as scheduled,
and monitored in the OSS. No problems were reported.

1.7 Completed PC 4140 (WF/PC Cycle 2 Calibration: Rapid Internal
Monitor - Part 2)

The Planetary Camera was used with filter F439W to make internal
flat images to check for quantum efficiency hysteresis. The
calibrations proposal was monitored in the OSS, and the data quality
was assessed. No problems were reported.

1.8 Completed WFC 4381 (HST Medium Deep Survey - Cycle 3)

The Wide Field Camera was used to make high latitude medium-deep
survey observations taken in parallel with the prime science
observations. The observations were executed as scheduled, and no
problems were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 8
Successful : 7

Failure 130/1930Z, Backup FL to CT

Scheduled Reacquisitions : 6
Successful : 6
Losses of Lock : 0

2.2 FHST Updates:

Scheduled : 9
Successful : 8

Failure 103/1902Z, Update

2.3 Significant HSTARs: None

2.4 Operations Note: None

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

3.1 Complete FGS 2941 (High Speed Astrometry - Search for Planetary
Companions to Low Mass)

3.2 Complete FGS 4775 (Exposure Time Calibration in High Background
Fields)

3.3 Uplink Updated Ephemeris Tables, Per MOSES 2871

3.4 Complete GHRS/2 3965 (Spectroscopy of BL Lac Objects, Cycle 2)

3.5 Complete FOS/BL 4054 (Probing the Nuclear Regions of Seyfert Galaxy
NGC-5548)

3.6 Complete WFC 4381 (HST Medium-Deep Survey - Cycle 3)

4.0 ANOMALY STATUS:

4.1 Significant New Anomalies: None

4.2 Significant Unresolved Anomalies: None

5.0 SIGNIFICANT FORTHCOMING EVENTS: Nothing at this time.

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