Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_94/hst_status_11_07_94 Дата изменения: Mon Nov 7 21:51:45 1994 Дата индексирования: Sun Dec 23 10:35:08 2007 Кодировка: Поисковые слова: m 96

HUBBLE SPACE TELESCOPE
DAILY REPORT #1260

PERIOD COVERED: 0000Z
Daily Status Report as of 311/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed WF/PC-2 5415 (The Distance to M-96 Galaxy Group: Cycle 4
Medium)

The WF/PC-2 was used to make observations of Cepheid variable stars
within the galaxy NGC-3368 which itself is located in the M-96
galaxy cluster. This is to help determine the distance to this
galactic group, and to improve the determination of the Hubble
constant. The observations were completed as planned, and no
anomalies were reported.

1.2 Completed Two Sets of WF/PC-2 5446 (The Nuclei of Nearby S0 and
Spiral Galaxies: A PC Snapshot Imaging)

The WF/PC-2 was used to make observations of the core region of
galaxies NGC-3810 and NGC-1003 to provide statistics on the nuclear
cups, stellar condensations, and inner stellar disks and dust lanes.
The observations were executed as scheduled, and no anomalies were
noted.

1.3 Completed WF/PC-2 5479 (Subarcsecond Structure in Nearby AGNs)

The WF/PC-2 was used to make snapshot observations of the nearby
active galactic nuclei of ESO362-G18 to study the interactions
between the central engine, the stars, and the interstellar matter
in the AGN. The observations were executed as scheduled, and no
anomalies were noted.

1.4 Completed FOS/RD 5631 (A New Size Constraint on Lyman Alpha Clouds)

The FOS (Red Side) was utilized to view PKS0254-33 to observe a pair
of quasars separated by about one arcsecond, and one member of a
second pair, with the expectation that constraints can be put on the
scale of the absorbers which produce spectral lines in the Lyman
Alpha forest. The baseline guide star acquisition for this
observation failed: this observations was made in coarse track
instead of fine lock. No other anomalies were noted.

1.5 Completed Two Sets of WF/PC-2 5369 (HST Medium-Deep Survey: Cycle 4
Medium, High Galactic Latitude)

The WF/PC-2 made a series of observations of high latitude objects
as part of a medium deep sky survey. The observations were taken in
parallel with other prime science observations. The baseline guide
star acquisition for this observation failed: this observation was
made in coarse track instead of fine lock. No other anomalies were
noted.

1.6 Completed WF/PC-2 5571 (WF/PC-2 Cycle 4 Calibration: Earthflats,
Smaller Set)

The WF/PC-2 was used to make several ultraviolet and narrow-band
filter Earth flat calibration observations to correct for the
telescope's illumination pattern. The observations were completed as
planned, and no problems were reported.

1.7 Completed WF/PC-2 5560 (WF/PC-2 Cycle 4 Calibration: Internal
Monitor. 1)

The WF/PC-2 was used to make several internal bias, K-Spot, and flat
calibration observations to monitor the CCD camera electronics, the
optical alignment, and to check for contamination. The observations
were completed as planned, and no anomalies were noted.

1.8 Completed WF/PC-2 5470 (WF/PC-2 Imaging of the Protogalaxy Candidate
B2 0902+34)

The Planetary Camera will be used to obtain images of the
protogalaxy candidate B2 0902+34, which is one of the most distant
known galaxies (Z=3.395). It is hoped to learn more about the
distribution of the star forming regions and emission line gas on
smaller scales than was possible with previous ground based
observations. The observations were executed as scheduled, and no
anomalies were noted.

1.9 Completed WF/PC-2 5233 (Stellar Populations and Clusters in
Elliptical Galaxies (WC08))

The WF/PC-2 was sued to make deep observations of elliptical galaxy
NGC-4881 to study its stellar population. The observations were
complete as scheduled, and no anomalies were noted.

1.10 Completed FOS/BL 5530 (FOS Location of Spectra and Aperture)

The Faint Object Spectrograph (Blue Side) was used to make Y-base
maps of the FOS detectors using internal lamps. The purpose is to
determine the location of the spectra on the diodes. The
observations were executed as scheduled, and no anomalies were
noted. See Operations Notes for the resumption of the FOS Blues Side
opertations.

1.11 Completed FGS 5657 (Duplicity Among Hyades Stars: Cycle 4 High)

The FGSs (TRANS-Mode) were used to make astrometric observations of
star VA709 located in the Hyades cluster in an attempt to find a
close binary. The observations were executed as scheduled, and no
anomalies were noted.

1.12 Completed WF/PC-2 5092 (GTO Low Latitude Parallel Program: Cycle 4)

The WF/PC-2 was used to make observations taken in parallel with the
prime science observations. This is part of a survey to take
pictures of a large number of fields within 30 degrees of the
galactic plane. The observations were completed as planned, and no
problems were reported.

1.13 Completed FOS/RD/S/C 5528 (FOS Cycle 4: Focus, X-Patch, Y-Patch)

The Faint Object Spectrograph (Red Side) was used to make both a
dark and wavelength calibration observations. No external sources
were used. The observations were completed as planned, and no
anomalies were reported.

1.14 Completed WF/PC-2 5401 (Luminosities and Morphologies of a Complete
3CR Sample of Radio Galaxies)

The WF/PC-2 was used to obtain images of radio galaxy GSC0817-02,
which has a Z near 1.0, and also is a quasar. These observations
will be used to determine and compare luminosities, and morphologies
in the optical and infrared. The observations were executed as
scheduled, and no anomalies were noted.

1.15 Completed GHRS/2 5547 (GHRS Side 2 Detector Calibrations: Cycle 4)

The High Resolution Spectrograph (Side 2) was used to make dark, and
internal flat calibration images to help check the stability of the
detectors. The observations were completed as planned, and no
anomalies were reported.

1.16 Completed WF/PC-2 5511 (Detailed Study of 4C41.17, the Most Distant
Galaxy: Cycle 4 Medium)

The WF/PC-2 was used to make early acquisition images the galaxy
4C41.17, which is the most distant known galaxy. This is to try to
locate the knots which will be later observed with the FOS. The
observations were completed as planned, and no problems were
reported.

1.17 Completed WF/PC-2 5504 (Structure of HERBIG-HARO Jets From New Born
Stars: Cycle 4 High)

The WF/PC-2 was used to make observations of the jet on star HH111
(Herbig-Haro). The HH jets are related to the star's formation
process. The observations were completed as planned, and no
anomalies were reported.

1.18 Completed Two Sets of WF/PC-2 5419 (A Search for Very
Low-Luminosity Active Galactic Nuclei in Nearby Galaxies)

The WF/PC-2 was used to make observations of galaxy NGC-3607, which
is known to have ultraviolet bright, low-luminosity, active galactic
nuclei. The observations were completed as planned, and no problems
were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 11
Successful : 11

Scheduled Reacquisitions : 13
Successful : 13

2.2 FHST Updates:

Scheduled : 6
Successful : 6

2.3 Significant HSTARs: None

2.4 Operations Notes:

2.4.1

The FOS high voltage turn-on was successfully accomplished on
Saturday at approximately 1400Z, using the Blue side. This was the
first use of the Blue Side with high voltage since last week's
safing.

2.4.2

The first image of a stellar source with the COSTAR corrections for
the f/48 optical relay of the FOC was taken on 10/31. The image was
of the spiral galaxy NGC 1068. It contained stellar images that are
optically corrected and in good focus. The 4.5 hour test was run
without the normal 75 minute warmup time. The position of the long
spectrographic slit was found. This was the first use of the f/48
detector in almost a year. Previous turnons since January 1993 had
shown a worsening of the high background levels attributed to a
partial breakdown in one of the camera's high voltage intensifier
stages. In December, 1993, the background count rate was
unacceptably high after 3 hours of use. Contrary to previous tests,
this time the background was high at first and decreased markedly
with time. A plan for future testing and use of the f/48 camera
will be developed in the coming weeks.


2.4.3

FSW installation 9.4 Phase 1 consisting of the #10 Write Protect
command modification and the new "H" format telemetry with related
PDB 42.A changes were installed on 11/4/94. (308/1450Z to
308/2200Z).

Two HSTARs related to the new telemtery format were written. None of
the HSTARs written constitute any impact to the Health and Safety
of the spacecraft.

3.0 ANOMALY STATUS:

3.1 Significant New Anomalies: None

3.2 Significant Unresolved Anomalies: None

4.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.

/DMH -END-