Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_94/hst_status_04_18_94 Дата изменения: Tue Apr 19 20:44:56 1994 Дата индексирования: Sun Dec 23 10:31:59 2007 Кодировка: Поисковые слова: universe

HUBBLE SPACE TELESCOPE
DAILY REPORT #1120

PERIOD COVERED: 0700 EST
Daily Status Report as of 109/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed Two Sets of WF/PC-2 5562 (WF/PC-2 Cycle 4 Calibration:
Internal Monitor. 3: Darks)

The WF/PC-2 was used to obtain a 30-minute long, dark exposure to
provide ongoing calibration of the CCD dark current and to monitor
and characterize the evolution of hot pixels. The image was received
and displayed in the OSS, and they were reported to look okay.

1.2 Completed WF/PC-2 5623 (SINS: The Supernova Intensive Study Target
of Opportunity: Cycle 4)

The WF/PC-2 was used to make target-of-opportunity observations of
supernova SN1994I. Four observations were received and displayed in
the OSS. They all were reported to be nominal.

1.3 Completed GHRS/2 5357 (Cepheid Masses: Cycle 4 High)

The High Resolution Spectrograph (Side Two) was used to make
ultraviolet spectral observations of binary Cepheid star HD91595 to
determine its mass. Twelve observations were received and displayed
in the OSS. They were reported to be satisfactory.

1.4 Completed WF/PC-2 5570 (WF/PC-2 Cycle 4 Calibration: Earthflats,
Large Set)

The WF/PC-2 was used to make a set of Earth flat calibration images
using different filters in order to construct high quality flat
fields of the OTA illumination pattern. A total of eight images were
received and displayed. Most of the observations were nominal. The
last observation was written across a tape recorder track switch.
Another observation was reported to be underexposed.

1.5 Completed FOC/96 5140 (Observations of the Narrow Line Regions in
Nearby Seyfert Galaxies)

The Faint Object Camera (f/96) was used to make observations at
several different wavelengths of a Seyfert galaxy which is located
near the Cygnus A source. This is to study relations between the
radio and optical emissions. The baseline guide star acquisition
failed to acquire the star in fine lock. The guide star was acquired
in coarse track, and the observations was reported to be degraded.

1.6 Completed WF/PC-2 5092 (GTO Low Latitude Parallel Program: Cycle 4)

The WF/PC-2 was used to make observations taken in parallel with the
prime science observations. This is part of a survey to take
pictures of a large number of fields within 30 degrees of the
galactic plane. The intent is to determine the luminosity function
of low mass stars and the mass density in the solar neighborhood.
The baseline guide star acquisition failed to acquire the star in
fine lock, and the observation was made in coarse track. The
observation was reported to be degraded.

1.7 Completed WF/PC-2 5560 (WF/PC-2 Cycle 4 Calibration: Internal
Monitor. 1)

The WF/PC-2 was used to make several internal bias, K-Spot, and flat
calibration observations to monitor the CCD camera electronics, the
optical alignment, and for contamination. The observations remain on
the science tape recorder, and will be analyzed later. No anomalies
were noted.

1.8 Completed GHRS/2 5398 (Eclipse Mapping of the Chromospheric and
Transition Regions Structure)

The High Resolution Spectrograph was used to obtain high signal to
noise ratio spectra of the eclipsing binary star HR2554 (aka,
HD50337) which is a known Zeta Aurigae-Type binary star. This system
consists of a dwarf star and a G6 giant star. The light from the
dwarf will be used as a probe of the outer atmosphere of the giant
star. The observations were executed as scheduled, and no anomalies
were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 5
Successful : 5

At 108/2253Z One Fine Lock failed to
Course Track. Subsequent acquisition
at 109/0445Z was successful.

Scheduled Reacquisitions : 9
Successful : 9

Two Fine Locks failed to Course
Tracks

2.2 FHST Updates:

Scheduled :9
Successful :9

2.3 Significant HSTARs: None

2.4 Operations Notes:

A quiet day was experienced as each HST subsystem reported nominal
conditions.

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

3.1 Complete Three Sets of WF/PC-2 5476 (Continuum Snapshot of 3CR Radio
Galaxies)

3.2 Complete FOS/RD 5623 (SINS: The Supernova Intensive Study Target of
Opportunity: Cycle 4)

3.3 Complete WF/PC-2 5475 (A Snapshot Survey for Blue Stragglers in
Magellanic Cluster Cores)

3.4 Complete WF/PC-2 5570 (WF/PC-2 Cycle 4 Calibration: Earthflats,
Large Set)

3.5 Complete WF/PC-2 5561 (WF/PC-2 Cycle 4 Calibration: Internal
Monitor. 2: Flats)

3.6 Complete GHRS/2 5398 (Eclipse Mapping of the Chromosphere and
Transition Region Structure)

3.7 Complete Two Sets of WF/PC-2 5562 (WF/PC-2 Cycle 4 Calibration:
Internal Monitor 3: Darks)

3.8 Complete WF/PC-2 5397 (Determination of the Extragalactic Distance
Scale: Cycle 4 High)

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.

/DMH -end-