Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_95/hst_status_10_24_95 Дата изменения: Tue Oct 24 20:04:55 1995 Дата индексирования: Sun Dec 23 10:40:40 2007 Кодировка: Поисковые слова: solar eclipse

HUBBLE SPACE TELESCOPE

DAILY REPORT #1502

PERIOD COVERED: 0000Z (UTC) 10/23/95 - 0000Z (UTC) 10/24/95

Daily Status Report as of 297/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed WF/PC-2 5957 (Snapshot of 3CR Radio Galaxies)

The WF/PC-2 was used to make observations for radio galaxy 3C390.0 =
to study the morphology of the radio galaxy. The observations were =
executed as scheduled, and no anomalies were noted.

1.2 Completed Four 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.

1.3 Completed FGS 6264 (Parallax of RR-Lyrae)

The FGSs were used to make astrometric observations of the variable =
star RR-Lyrae in order to measure its parallax. RR-Lyrae is the =
proto-type for a class of variable stars whose pulsation periods correlate =
with their absolute magnitudes. The observations were completed as =
planned, and no problems were reported.

1.4 Completed WF/P-2 6254 (GTO Pure Parallel Program - Cycle 5)

The WF/PC-2 was use to make random long exposures of high galactic =
fields taken in parallel with the prime science observations to obtain a =
random sample of galaxies. The observations were executed as scheduled, =
and no anomalies were noted.

1.5 Competed WF/PC-2 5982 (Imaging of a Complete Sample of the Nearest =
Infrared Quasars)

The WF/PC-2 was used to make two color observations of the nearby =
infrared quasar (IR QSO) MRK231. It is believed that this IR QSO resulted =
from the merger of two gas-rich galaxies. The observations were executed =
as planned, and no anomalies were reported.

1.6 Completed WF/PC-2 5476 (Continuum Snapshots of 3CR Radio Galaxies) =


The WF/PC-2 was used to make snapshot images of radio galaxy =
3C111.0 as part of a continuum survey and to study the galaxy's =
morphology. The observations were executed as scheduled, and no anomalies =
were noted.

1.7 Completed WF/PC-2 5844 (HST Investigation of a Bright, New Comet)

The WF/PC-2 was used to make observations of the bright new comet =
Hale-Bopp (aka, Comet C/1995 O1). The images will yield information of =
the nuclear size and coma near the nucleus. The observations were =
completed as planned, and no anomalies were noted.

1.8 Completed WF/PC-2 5991 (The Fundamental Plane of Early-Type =
Galaxies in X-Ray Clusters at Z=3D0.0)

The WF/PC-2 was used to make observations of X-Ray galactic cluster =
GAL-CLUS-2 in order to measure the scale heights, surface brightness =
profile, color distributions and morphology of the cluster. The =
observations were completed as planned, and no anomalies were noted.

1.9 Completed GHRS/2 6249 (Observations of Interstellar Oxygen)

The High Resolution Spectrograph (Side Two) was used to make =
spectrographic observations of star HD24760 in order to study interstellar =
oxygen in the line of sight to that star. It was found previously that =
the oxygen abundance in the direction of Orion is only half of the solar =
abundance. The observations were completed as scheduled, and no anomalies =
were noted.

1.10 Completed GHRS/2 6056 (Spectroscopy and Imagery of the Orion =
Nebula)

The High Resolution Spectrograph (Side Two) was used to make =
observations of selected sections of the Orion Nebula (aka, NGC-1976). A =
wavelength calibration image was also taken. The observations were =
completed as planned, and no problems were reported.

1.11 Completed WF/PC-2 6253 (Pure Parallel Archive Program)

The WF/PC-2 was used to execute a pure parallel program taking =
ultraviolet observations running concurrently with prime science =
observations. The intent is to search for extra-galactic sources with =
flux excesses at 3000 A0 and galactic sources with excesses at 1600 A0. =
The observations were completed as planned, and no problems were reported.

1.12 Completed WF/PC-2 6187 (WF/PC-2 Cycle 5 Calibration: Earth Flats)

The WF/PC-2 was used to make Earth streak flat calibration images. =
These streak flats will be used to produce flat fields, to map the OTA =
illumination pattern and, in combination with other data, to produce new =
superflats. The observations were completed as planned, and no problems =
were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 5
Successful : 5

Scheduled Reacquisitions : 11
Successful : 11

2.2 FHST Updates:

Scheduled : 10
Successful : 10

2.3 Operations Notes:

Operations personnel performed special commanding to handle the =
partial solar eclipse that occurred from 297/0014Z to 297/0827Z.

No DF-224 SPC load is scheduled for day 297. This is the first =
occasion for the new loading scheme which allows for 48-hour loads.

Due to the shuttle's use of TDRSS services, the High/Low Gyro Bias =
Update w^ll not occur until approximately 298/0730Z. The last update was =
at 295/1913Z.

Guide star acquisition loss of locks reported on DOY =
95.292/10:00:33 (reference HSTAR 5335, FOS Dwell Scan Reject) and DOY =
95.293/13:10:45 (reference HSTAR 5336) were due to high FGS-1 star =
selector servo B comp errors. The first event occurred during an SI Error =
Null slew. The second event occurred during a GHRS on-board target =
acquisition.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.

/DMH
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