Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_96/hst_status_05_06_96 Дата изменения: Mon May 6 14:27:41 1996 Дата индексирования: Sun Dec 23 10:43:53 2007 Кодировка: Поисковые слова: virgo cluster

HUBBLE SPACE TELESCOPE

DAILY REPORT #1627

PERIOD COVERED: 0000Z (UTC) 05/03/96 - 0000Z (UTC) 05/06/96

Daily Status Report as of 127/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed WF/PC-2 5971 (HST Medium Deep Survey)

The WF/PC-2 was used to make long exposure, medium deep sky survey =
observations at latitudes larger than 10 degrees taken in parallel with =
the prime science observations. The observations were executed as =
scheduled, and no anomalies were noted.

1.2 Completed WF/PC-2 5996 (The Morphology of Field Galaxies at High =
Redshifts)

The WF/PC-2 was used to make observations of several field =
galaxies (Field-1000) in order to study their morphologies. The =
observations were completed as planned, and no anomalies were reported.

1.3 Completed WF/PC-2 5920 (Extragalactic Globular Cluster System)

The WF/PC-2 was used to make observations to compile a catalogue =
of the extragalactic globular clusters in galaxy NGC-4472. A luminosity =
function will be derived which should be complete down to the 27th =
magnitude in V. The observations were completed as planned, and no =
problems were reported.

1.4 Completed WF/PC-2 6123 (Resolving the Luminous O III Lambda 5007 So=
urces in the Early-Type Galaxies.)

The WF/PC-2 was used to make observations the planetary nebula =
NGC-4382 located in one of the early type galaxies in the Virgo Cluster =
in order to resolve its luminous O III regions (Lambda - 5007 A0). This =
planetary nebula is significantly brighter than planetaries in other =
galaxies. The observations were completed as planned, and no problems =
were reported.

1.5 Completed WF/PC-2 5999 (The Nuclear Structure of S0 Galaxies: A PC =
Imaging Survey)

The WF/PC-2 was used to make observations of S0 class galaxy =
IC3540 in order to study its nuclear structure. This is a part of a =
large survey of S0, E/S0, and S0/a class galaxies. The targets will =
cover a wide range in luminosity and environment. The observations were =
completed as planned, and no anomalies were noted.

1.6 Completed FOS/BL 5921 (FOS Observations of Ionized Gas in Two =
Early-Type Galaxies)

The Faint Object Spectrograph (Blue Side) was used to make =
observations of the early type galaxy NGC-4486 in order to study its =
ionized gas which contains Si IV, C IV, and N V. The initial target =
acquisition for this ten-hour proposal failed. It was reported in HSTAR =
5600 that the aperture mapping function was unable to find a target. =
Otherwise, the remaining observations were completed as planned, and no =
further problems were reported.

1.7 Completed Three Sets of WF/PC-2 6183 (WF/PC-2 Cycle 5 Calibration: =
Decon)

The WF/PC-2 was used to make some internal flat, K-Spot, and dark =
calibration images. The purpose is to define decontamination procedures =
to be run during Cycle 5. The calibration observations were completed as =
scheduled, and no anomalies were reported.

1.8 Completed FOC/96 6349 (Snapshot search for High Redshift QSOs with =
Far-UV Flux)

The Faint Object Camera (f/96) was used to make snapshot images of =
the quasi-stellar object Q0940-108. This is to determine if this high =
redshifted object has a far ultraviolet flux. The observations were =
executed as scheduled, and no anomalies were noted.

1.9 Completed GHRS/2 6065 (ZAMS Atmospheric Structure as a Function of =
Rotation)

The High Resolution Spectrograph (Side Two) was used to make =
emission line spectrographic observations of the zero-age main sequence =
(ZAMS) star HD82558 in order to study its atmospheric structure as a =
function of rotation. Wavelength calibrations, internal flats, and dark =
calibration images were also taken. The observations were executed as =
scheduled, and no anomalies were noted.

1.10 Completed Two Sets of FOS/RD 6167 (FOS Cycle 5: Dark Monitoring)

The Faint Object Spectrograph (Red Side) was used to make several =
dark calibration images. All exposures were internals. All spectra was =
done in the image mode. The observations were completed as planned, and =
no problems were reported.

1.11 Completed GHRS/1 6661 (UV Spectroscopy of Face-On Accretion =
Disks)

The High Resolution Spectrograph (Side One) was used to make =
ultraviolet observations of the face-on accretion disk in nova type =
variable star BD-7D3007. Because of its orientation, rotational =
line-broadening will have a reduced impact on the spectra of the disk. =
The observations were completed as planned and no anomalies were =
reported.

1.12 Completed Two Set of FOS/RD 6167 (FOS Cycle 5: Dark Monitoring)

The Faint Object Spectrograph (Red Side) was used to make several =
dark calibration images. All exposures were internals. All spectra was =
done in the image mode. The observations were completed as planned, and =
no problems were reported.

1.13 Completed FOC/96/48 6890 (FOC/48 Cycle 5 Aperture Location)

The Faint Object Camera (F/48) was used to make standard =
astrometric observations of NGC-188 to measure the location of the f/48 =
aperture, and the orientation of the detector and reseau axis. A dark =
and an internal flat calibration images were also taken. The =
observations were completed as planned, and no problems were reported.

1.14 Completed FOC/96 6525 (The B/UV Colors of Geminga Suggest Spectral=
Feature on Hot Continuum)

The Faint Object Camera (f/96) was used to make blue and =
ultraviolet observations of object Star-0633 (aka, Geminga - a middle =
aged neutron star). Existing ground-based and HST data suggest that a =
spectral feature is superimposed on the thermal emission. The =
observations were completed as planned and no problems were reported.

1.15 Completed WF/PC-2 6191 (WF/PC-2 Cycle 4 Calibration: UV Flats)

The WF/PC-2 was used to take some ultraviolet calibrations flats =
using several different filters. A dark calibration image was also taken =
to check for possible after images. No problems were reported.

1.16 Completed WF/PC-2 6849 (A Photometric Search For Planets of =
Nearby Stars: GTO Prop. Continuation)

The WF/PC-2 was used to make a photometric search of the nearby =
star L145-141 to look for possible planets. Images through both the wide =
and narrow-band filters were obtained. The observations were completed =
as planned, and no anomalies were reported.

1.17 Completed WF/PC-2 5997 (The Cores of Elliptical Galaxies in the =
Coma Cluster)

The WF/PC-2 was used to make observations of the large elliptical =
galaxy Gal-125855 which is located in the Coma Cluster. The purpose is =
to study the luminosity profiles in the central nuclear region. The =
observations were completed as scheduled, and no anomalies were noted.

1.18 Completed WF/PC-2 6431 (Determination of the Extragalactric =
Distance Scale)

The WF/PC-2 was used to make observations of the galaxy NGC-4548 =
to be used in measuring the periods of Cepheid variable stars within this =
galaxy. This will allow for a more accurate estimate of the distances to =
these galaxies through the period-luminosity relation for the Cepheid =
stars. The observations were executed as scheduled, and no anomalies =
were noted.

1.19 Completed FGS 6268 (The Parallax of NGC-6853)

The FGSs were used to make astrometric observations in order =
measure the parallax to NGC-6853, one of the nearest planetary neabulae. =
The observations were executed as planned, and no problems were reported.

1.20 Completed WF/PC-2 6614 (The Star Formation History of the =
Sagittarius Dwarf Spheroid Galaxy)

The WF/PC-2 was used to make photometric observations of stars with=
in the newly-discovered dwarf spheroid galaxy SGR-DSPH1 located in =
Sagittarius. This is the nearest galaxy to the Milky Way. Stellar =
luminosities, colors, and metallicities will be measured. The =
observations were completed as scheduled, and no anomalies were reported.

1.21 Completed WF/PC-2 6053 (Extreme UV Stars in Omega Cent)

The Faint Object Spectrograph (Blue Side) was used to make =
observations of extremely ultraviolet bright stars in NGC-5139 (aka, =
Omega Cent). These stars were also viewed by the UIT on ASTRO-1. The =
observations were executed as scheduled, and no anomalies were noted.

1.22 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.=


1.23 Completed Two Sets of FGS 6037 (Continuation of an Astrometric =
Search for Planetary Companions to Proxima-Cent)

The FGSs were used in the POS mode to make astrometric =
observations of the star Proxima-Cent and a sub-set of eight reference =
stars. This is to look for the presence of a planetary companion. The =
observations were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 21
Successful : 21

Scheduled Reacquisitions : 27
Successful : 27

2.2 FHST Updates:

Scheduled : 37
Successful : 37

2.3 Operations Notes:

A quiet week-end was experienced by HST operations personnel.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.

/DMH