Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_95/hst_status_11_22_95 Дата изменения: Wed Nov 22 14:43:37 1995 Дата индексирования: Sun Dec 23 10:41:12 2007 Кодировка: Поисковые слова: saturn's moon

HUBBLE SPACE TELESCOPE

DAILY REPORT #1522

PERIOD COVERED: 0000Z (UTC) 11/21/95 - 0000Z (UTC) 11/22/95

Daily Status Report as of 326/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed FOS/RD 5824 (Occultation of GSC5249 by Saturn)

The Faint Object Spectrograph (Red Side) was used to observe =
Saturn's atmosphere and its rings while being occulted by GSC5249. =
Spectra of the occulted star, of Saturn's atmosphere and of Saturn's rings =
will be obtained before and after the occultation. The observations were =
completed as planned, and no problems were reported.

1.2 Completed WF/PC-2 5836 (Saturn Ring Plane Crossing Observations in =
August and November 1995)

The WF/PC-2 was used to make observations of the rings of the =
planet Saturn during the ring plan crossing in order to determine their =
thickness and distortion. The moons Pan and Atlas will also be observed. =
The observations were completed as planned, and no problems were reported.

1.3 Completed WF/PC-2 6250 (WF/PC-2 Cycle 5 Calibration: Internal Monitor)

The WF/PC-2 was used to make a series on internal calibration =
observations. Internal flats, biases, and K-Spot calibration images were =
taken. These observations are designed to monitor the health of the =
cameras. The observations were executed as scheduled, and no anomalies =
were noted.

1.4 Completed Two Sets of WF/PC-2 6119 (Snapshot Survey for Companions of =
Planetary Nebula Nuclei)

The WF/PC-2 was used to make snapshot survey observations of =
planetary nebula RXJ2117+34 to study its nuclei and to look for possible =
companions. The observations were executed as scheduled, and no anomalies =
were noted.

1.5 Completed WF/PC-2 5973 (The Host Galaxies of Radio Quite High Redshift =
Quasi-stellar Objects)

The WF/PC-2 was used to make observations of the host galaxies of =
radio quite high red shift quasi-stellar object 1045+060. These data will =
be compared to existing data sets for radio-loud, high-redshift QSOs and =
ground based data on radio-quiet, low-redshift QSOs. The observations =
were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 10
Successful : 8

At 326/080939Z, an FGS #3 acquisition failed when the
scan step limit was exceeded. HSTAR 5370 describes
this event.

At 326/102320Z, the guide star acquisition briefly
achieved fine lock when FGS #2 experienced a loss of
lock. The take data flag was never raised. HSTAR
5371 was written to document this series of events.

Scheduled Reacquisitions : 5
Successful : 5

There was a loss of lock at during the second
acquisition failure mentioned above.

2.2 FHST Updates:

Scheduled : 21
Successful : 21




2.3 Operations Notes:

A line outage recorder dump was requested to retrieve 102 seconds =
of engineering data lost due to a fatal overflow on the TAC A3 channel.

Realtime support was transferred to the SAMS backup facility at =
326/0843Z. This was done to facilitate the examination and testing of the =
MOC PRS LAN.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.

/DMH