Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_96/hst_status_08_15_96 Дата изменения: Thu Aug 15 15:43:59 1996 Дата индексирования: Sun Dec 23 10:45:41 2007 Кодировка: Поисковые слова: moon

HUBBLE SPACE TELESCOPE

DAILY REPORT #1697

PERIOD COVERED: 0000Z (UTC) 08/14/96 - 0000Z (UTC) 08/15/96

Daily Status Report as of 228/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed FOS/48 6304 (Long Slit Spectroscopy of the Nuclear =
Region of a Sample Nearby Radio Galaxies)

The Faint Object Camera will be used to make long-slit spectra of =
the nuclear region of the nearby Seyfert radio galaxy PKS2158-38. The =
objective is to study the interaction of the galaxy's radio jet with the =
interstellar medium. The observations were executed as scheduled, and no =
anomalies were noted.

1.2 Completed Two Sets of WF/PC-2 6363 (The Environments and Host =
Galaxies of BL-Lac Objects)

The WF/PC-2 was used to make snapshot survey observations of =
BL-Lac object PKS2149+17 in order to study its environment and its host =
galaxy. The goal is to investigate systematic trends in host galaxy type, =
unusual morphological features, nearby companion galaxies, etc. The =
observations were executed as scheduled, and no anomalies were noted.

1.3 Completed GHRS/1/2 6594 (White Dwarf Companions of Barium and CH =
Peculiar Stars)

The High Resolution Spectrograph (Sides One and Two ) were used to =
attempt to make spectrographic observations of the white dwarf of the =
Barium and CH Peculiar class star HD157347. This will test the theory =
that abundance anomalies in this star caused by mass transfer from the =
precursor to the white dwarf. The observations were executed as =
scheduled, and no anomalies were noted.

1.4 Completed FOS/RD 6840 (Determining the Crustal Composition of IO =
Through Atmospheric Spectra-Analysis.)

The Faint Object Spectrograph (Red Side) was used to make several =
Rapid Mode spectrographic observations of the atmosphere of Jupiter's =
moon Io in order to search for emissions from Si and Mg. The crust of =
the moon should be made of silicated minerals, but no evidence for them =
has been found. If bare silicates does exist, it could be injected in to =
the atmosphere by sputtering of the surface. The observations were =
completed as planned and no anomalies were reported.

1.5 Completed Two Sets of WF/PC-2 6188 (WF/PC-2 Cycle 5 Calibration: =
Dark)

The WF/PC-2 was used to make internal dark calibration images. The =
observations were completed as scheduled, and no problems were reported.

1.6 Completed FOS/RD/BL 6108 (A Critical Test Case)

The Faint Object Spectrograph (Both Red and Blue Sides) were used =
to study the ultraviolet absorption lines in the Seyfert galaxy NGC-5316. =
These lines are thought to arise from gas located close to the central =
engine. The UV spectrum of the target is highly variable; the fluxes =
also have varied by a factor of four. The observations were executed as =
scheduled, and no anomalies were noted.

1.7 Completed GHRS/2 6757 (Transit Observations of Io's Atmosphere)

The High Resolution Spectrograph (Side Two) was used to make =
ultraviolet observations of Jupiter's moon Io as it made a transit across =
the face of Jupiter's surface, to determine the abundance and =
distribution of SO2 (Sulfur Dioxide) in its atmosphere. Observations were =
made both before and during the transit. During the transit of Jupiter, =
Io was silhouetted. However, its atmosphere is thick enough to absorb a =
significant number of photons. The observations were completed and no =
problems were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 5
Successful : 5

Scheduled Reacquisitions : 7
Successful : 7

2.2 FHST Updates:

Scheduled : 13
Successful : 13

2.3 Operations Notes:

All operations were reported as being nominal. No problems were =
reported.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.

/DMH