Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_94/hst_status_10_27_94 Дата изменения: Thu Oct 27 16:00:29 1994 Дата индексирования: Sun Dec 23 10:35:00 2007 Кодировка: Поисковые слова: п п п п

HUBBLE SPACE TELESCOPE
DAILY REPORT #1252

PERIOD COVERED: 0000Z
Daily Status Report as of 299/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed 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 observations
were completed as scheduled, and no anomalies were noted.

1.2 Completed FOS/RD 5588 (FOS Prism Snapshot Survey)

The Faint Object Spectrograph is currently in Safe Mode, and no
observations were executed.

1.3 Completed Three Sets of 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.

1.4 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-4203, which
is known to have ultraviolet bright, low-luminosity, active galactic
nuclei. The observations were completed as planned, and no problems
were reported.

1.5 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 WAS45 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.

1.6 Completed WF/PC-2 5629 (WF/PC-2 Cycle 4 Photometric Calibration
Monitor 1C: 4-Chip STD in F170W)

The WF/PC-2 was used to make photometric calibration observations of
the ultraviolet standard star GRW+70D582. The observations were
executed as scheduled, and no anomalies were noted.

1.7 Completed Four Sets of FOS/BL 5444 (A UV Spectral Library of Metal-
Poor Massive Stars)

The Faint Object Spectrograph is currently in Safe Mode, and no
observations were executed.

1.8 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 a visual flats. The observations were
completed as planned, and no problems were reported.

1.9 Completed COSTAR/FOC 5762 (FOC Point Spread Function Monitoring:
Cycle 4)

The Faint Object Camera (f/96) was used to make an image of an
ultraviolet standard star (BPM16274) in order to monitor the
point-spread function of the HST-COSTAR-FOC channel. The
observations were executed as scheduled, and no anomalies were
noted.

1.10 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.

1.11 Completed WF/PC-2 5370 (HST Medium-Deep Survey: Cycle 4 High, High
Galactic Latitude)

The WF/PC-2 was used in parallel with the prime science observations
to make high galactic latitude observations as part of a medium-deep
sky survey. The observations were completed as planned, and no
problems were reported.

1.12 Completed HRS/2 5468 (The Mass of the White Dwarf of V471 Tauri:
Cycle 4 Medium)

The High Resolution Spectrograph (Side 2) was used to observe the
white dwarf in the eclipsing binary system, V471 Tau. The
observations were made when the target was at position of greatest
elongation on the side of the companion star. The target's velocity
curve will be found from the strong Lyman Alpha absorption, and will
be used to calculate the mass. Two recentering events were reported
to have lasted for a total of six seconds. No other anomalies were
noted.

1.13 Completed WF/PC-2 5343 (WFC Imaging of Nearby Bright Quasars)

The WF/PC-2 was used to make images of the bright quasar NAB0205+05
and its host galaxy. The goal is to study the morphology of this
galaxy, and to see how it differs from non-QSO galaxies. They also
will be looking for the relationship between the properties of the
host galaxy and the luminosity of the quasar. The observations were
completed as planned, and no anomalies were reported.

1.14 Completed WF/PC-2 5353 (Low-Mass Binaries in the Hyades: Cycle 4
High)

The WF/PC-2 was used to make images of the low-mass, late M-Class
dwarf star RHY281 which is located in the Hyades cluster. Some of
the companion stars may be brown dwarfs. The observations were
completed as scheduled, and no problems were reported.

1.15 Completed WF/PC-2 5563 (WF/PC-2 Cycle 4 Photometric Calibration
Monitor 1: UV /OPT STD.)

The WF/PC-2 was used to make photometric calibration images of
ultraviolet standard star GRW+70D582 and monitor the photometric
stability and quantum efficiency of the WF/PC-2. The observations
were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 7
Successful : 7

Scheduled Reacquisitions : 8
Successful : 8

2.2 FHST Updates:

Scheduled : 13
Successful : 13

2.3 Significant HSTARs: None

2.4 Operations Notes:

Battery #6 capacity test begins today (10/26/94) and will complete
by mid-afternoon tomorrow.

3.0 ANOMALY STATUS:

3.1 Significant New Anomalies: None

3.2 Significant Unresolved Anomalies:

Preliminary analysis of the FOS safing of the Blue Side this past
Monday indicates a possible transient which corrupted the FOS
microprocessor's memory, overloading the microprocessor. In
conjunction with the STScI and the FOS developers at UCSD, a
recovery plan has been developed which presents zero risk to the
instrument hardware. Recovery from safemode today will permit a Red
Side observation to execute, verifying normal Red Side operations.
If successful, Red Side observations will continue to be scheduled.
Further FOS observations in the week's SMS will be inhibited. On
10/31/94, the Blue Side will execute without High Voltage being
turned on. Assuming success, the next Blue Side observation with
High Voltage turn-on will be executed. If an anomaly occurs, Blue
Side activities will be removed from future SMSs while analysis
activities proceed.

4.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.

/DMH -END-