Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_95/hst_status_06_29_95 Дата изменения: Thu Jun 29 16:25:26 1995 Дата индексирования: Sun Dec 23 10:38:46 2007 Кодировка: Поисковые слова: ngc 6251

HUBBLE SPACE TELESCOPE

DAILY REPORT #1422

PERIOD COVERED: 0000Z (UTC) 06/28/95 - 0000Z (UTC) 06/29/95

Daily Status Report as of 180/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed WF/PC-2 6276 (Peculiar and Interacting Galaxies (WC01):
Cycle 5)

The WF/PC-2 was used to make observations of galaxy NGC-6251. The
spatial resolution afforded by the HST is expected to reveal important facts
concerning the nature of this object. The observations were executed as
scheduled, and no anomalies were noted.

1.2 Completed WF/PC-2 5568 (WF/PC-2 Cycle 4 Calibration: Decontamination)

The WF/PC-2 was used to make internal flat field calibration
observations using the VIS lamp and the internal source as part of
decontamination operations. A dark calibration image was also taken. The
observations completed nominally, and there were no reported problems.

1.3 Completed FOS/BL 5837 (Ultraviolet Imaging and Spectroscopy of the Icy
Galilean Satellites)

The Faint Object Spectrograph (Blue Side) was used to make ultraviolet
observations of Jupiter's moon Europa to study the albedo features caused by
SO2 absorption. These observations will be coordinated with the IUE
Spacecraft and other ground based observations. Although there were two
failures to coarse track during acquisitions for this proposal (one was
described in yesterday's report), there have been no reported problems with
the science.

1.4 Completed GHRS/2 5887 (The Depletion Behavior of Chromium Relative to
Zinc )

The High Resolution Spectrograph (Side Two) was used to make
observations of stars SK157 and SK69 which are located in the Large
Magellanic Cloud. The intent is to measure the relative abundances of Cr II
relative to Zn II in the interstellar medium. Because zinc does not deplete
onto dust grains while chromium does, their abundance ratio measures dust
distribution. A wavelength calibration image was also taken. The
observations were completed as planned, and there were no reported anomalies

1.5 Completed Two Sets of WF/PC-2 5655 (WF/PC-2 Cycle 4 Calibration:
Internal Monitor. 2: Flats Part 2)

The WF/PC-2 was used to make both dark and visual flats. The
observations were completed as planned, and no problems were reported.

1.6 Completed WF/PC-2 6126 (Evolution of Binary Neutron Stars and their
White Dwarf Companions)

The WF/PC-2 was used to make observations of binary STAR-0034 (A
neutron star/pulsar and its white dwarf companion). The photometry will be
used to determine the cooling age of the dwarf star. The observations were
executed as scheduled, and no anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 5
Successful : 4

An acquisition at 179/1051Z failed on FGS #2, but
successfully went to coarse track backup on FGS #3.

Scheduled Reacquisitions : 12
Successful : 12

2.2 FHST Updates:

Scheduled : 10
Successful : 10

2.3 Significant HSTARs: None

2.4 Operations Notes:

No operational problems were reported.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.

/DMH
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