Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_95/hst_status_05_23_95 Дата изменения: Fri Jun 9 02:49:15 1995 Дата индексирования: Sun Dec 23 10:38:11 2007 Кодировка: Поисковые слова: rings

HUBBLE SPACE TELESCOPE

DAILY REPORT #1396

PERIOD COVERED: 0000Z (UTC) 05/22/95 - 0000Z (UTC) 05/23/95

Daily Status Report as of 143/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed Two Sets of WF/PC-2 5782 (Saturn Ring Plan Crossing, May 1995)

The WF-PC-2 was used to obtain photometry of Saturn's rings, when the
Earth passed through the ring plane. The photometry will provide information
about the thickness of the rings and about precession rate of Saturn's pole.
The observations completed with no reported problems.

1.2 Completed WF/PC-2 6216 (Saturn's Ring Atmosphere)

The WF/PC-2 was used to obtain images of Saturn's rings when they are
edge-on to the Earth. The objective is to detect an "OH atmosphere"
associated with the rings. Different filters will be used to discriminate
between dust and OH emission, and to subtract scattered light. These
observations will be used to determine exposure times for a later series of
ring-plane crossing observations in August. The proposal completed as
scheduled, and no anomalies were noted.

1.3 Completed WF/PC-2 5629 (WF/PC-2 Cycle 4 Photometric Calibration Monitor
1C: 4-Chip STD in F170W)

The WF/PC-2 was used to make photometric calibration observations of
the ultraviolet standard star GRW+70D582. The observations were executed as
scheduled, and no anomalies were noted.

1.4 Completed FOS/BL 5658 (White Dwarf Calibration)

The Faint Object Spectrograph (Blue Side) was used to make absolute
sensitivity calibrations of the detectors using standard white dwarf star
HZ43. The observations were executed as planned, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 7
Successful : 7

Scheduled Reacquisitions : 9
Successful : 9

2.2 FHST Updates:

Scheduled : 14
Successful : 14

2.3 Significant HSTARs: None

2.4 Operations Notes:

A data inversion occurred during STGT operations.

PRS 6.03/PDB 42B have been declared operational.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.

/DMH
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