Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_96/hst_status_10_30_96 Дата изменения: Wed Oct 30 14:57:27 1996 Дата индексирования: Sun Dec 23 10:46:40 2007 Кодировка: Поисковые слова: annular solar eclipse

HUBBLE SPACE TELESCOPE

DAILY REPORT #1749

PERIOD COVERED: 0000Z (UTC) 10/29/96 - 0000Z (UTC) 10/30/96

Daily Status Report as of 304/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed WF/PC-2 6354 (Measuring Luminosity Evolution in Z=3D0.3 =
Field Galaxies)

The WF/PC-2 was used to make snapshot observations of the galactic =
cluster Gal-Cluster-1 (Object HD2665) located at a distance of Z=3D0.3. =
The targets were drawn from a much larger pool of galaxies for which the =
internal kinematics have been measured from an extensive ground based =
program. The observations were executed as scheduled, and no anomalies =
were noted.

1.2 Completed WF/PC-2 6359 (Core Properties of the Bulges of Spiral =
Galaxies)

The WF/PC-2 was used to make snapshot survey observations of =
spiral galaxy ESO548G10 in order to study its central bulge. The aim is =
to investigate the core properties, correlations with global galactic =
properties, and the frequency of occurrence of multiple and/or =
miscentered nuclei. The observations were completed as scheduled, and no =
anomalies were noted.

1.3 Completed 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 MSO0331.3-3 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.

1.4 Completed WF/PC-2 6733 (Spatially Resolved Mapping of Titan's =
Atmosphere )

The WF/PC-2 was used to make observations at several different =
wavelengths of the atmosphere on Saturn's largest moon Titan as part of a =
spatially resolved mapping program. Methane gas and organic aerosols are =
the major contributor to the atmosphere's opacity. The observations were =
completed as planned, and no anomalies were reported.

1.5 Completed WF/PC-2 6909 (WF/PC-2 Cycle 6 Calibration: Earth Flats)

The WF/PC-2 was used to make observations of the bright Earth to =
obtain streak flats which are used to construct high quality flat fields =
for the WF/PC-2 filter set. The observations were executed as scheduled, =
and no anomalies were noted.

1.6 Completed WF/PC-2 5958 (HST Observations of New Gravitational Lens =
Candidates)

The WF/PC-2 was used to make observations of object H0449-1645 =
which is a candidate for a new gravitational lens system. The =
observations were completed as planned, and no problems were reported.

1.7 Completed FOC/48 6308 (Long Slit Spectroscopy of the Narrow Line =
Region of Seyfert Galaxies)

The Faint Object Camera (f/48) was used to make long slit =
spectrographic observations of the narrow line region of Seyfert galaxy =
MRK-573. The slit was placed at several different positions across the =
nuclear region of the target. An internal flat and a dark calibration =
image were also taken. The observations were executed as scheduled, and =
no anomalies were reported.

1.8 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.

1.9 Completed FOS/RD 6548 (The Cool Interstellar Medium in Hot Cluster =
of Galaxies)

The Faint Object Spectrograph (Red Side) was used to make =
ultraviolet resonance absorption line observations of quasar QSO0909-09 =
in order to study the cool interstellar medium within a cluster of =
galaxies which lie within the line of sight to the quasar. The QSO is =
being used a probe of the galactic cluster. The observations were =
executed as scheduled, and no anomalies were noted.

1.10 Completed WF/PC-2 7203 (Cosmology with the Medium Deep Survey - =
Short Orbit Cases)

The WF/PC-2 was used to take short (about 20 minute) exposures, to =
be taken in parallel with the prime science observations, using the I =
filter. These exposures are part of the medium-deep survey, which =
emphasizes exposures that will be useful in obtaining cosmological =
parameters. The observations were completed as planned, and no problems =
were reported.

1.11 Completed GHRS/2 6504 (Cepheid Masses)

The High Resolution Spectrograph (Side Two) was used to make =
observations of the binary Cepheid variable star HD156979 in order to =
measure its mass. The luminosity of a Cepheid with a given mass depends =
sensitively on the amount of excess mixing above the core of the main =
sequence progenitor star. A wavelength calibration image was also taken. =
The acquisition for this proposal failed to fine lock as described in =
HSTAR 5767. Otherwise, the observations executed as scheduled with no =
further anomalies noted.

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 10
Successful : 6
Scheduled Reacquisitions : 9
Successful : 7

HSTAR 5767 describes an acquisition at 303/233853Z which failed to =
fine lock. The acquisition at 304/065318Z failed, and a loss of lock =
occurred as documented in HSTAR 5768. Finally, as mentioned in HSTAR =
5769, the acquisitions at 304/011537Z and the re-acquisition at =
304/012105Z as well as the following acquisition and re-acquistion at =
304/025610Z all failed due to a large saved null bias error. Except for =
the first of these occurrences, all impacts on science operations will be =
reported tomorrow.

2.2 FHST Updates:

Scheduled : 13
Successful : 13

2.3 Operations Notes:

Real time operations returned to the MOR at 304/0510Z following =
the conclusion of JIS #1.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.

/DMH