Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_94/hst_status_02_21_94 Дата изменения: Tue Feb 22 19:47:08 1994 Дата индексирования: Sun Dec 23 10:30:59 2007 Кодировка: Поисковые слова: южная атлантическая аномалия

HUBBLE SPACE TELESCOPE
DAILY REPORT #1080

PERIOD COVERED: 0700 EST
Daily Status Report as of 053/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed Two Sets of WF/PC-2 5240 (SMOV-WF/PC-2 Flat Fields
Calibration)

The WF/PC-2 was used to make a set of visual internal flat images.
Six images were received and displayed. One image was reported to be
underexposed, and the others were okay.

1.2 Completed Two Sets of WF/PC-2 5562 (WF/PC-2 Cycle 4 Calibration:
Internal Monitor 3: Darks)

The WF/PC-2 was used to obtain several 30 minute long dark exposures
to provide ongoing calibration of the CCD dark current and to
monitor and characterize the evolution of hot pixels. Five images
were received and displayed in the OSS. All five images were
reported to look okay.

1.3 Completed FOC/96 5150 (Pluto and Charon)

The Faint Object Camera (f/96) was used to make observations of the
planet Pluto and its moon Charon. Pluto was reported to subtend 10
pixels, and Charon about 5. The two bodies were separated by about
30 pixels. Four images were received and displayed. The images were
reported to be excellent!

1.4 Completed FOC/96/WF/PC-2 5435 (The Hot Stellar Component in the
Centers of M-31 and M-32: Cycle 4 Medium)

The Faint Object Camera was used to make images of hot stellar stars
in the central region galaxy M-32 (NGC-221, aka, the Andromeda
Galaxy) to measure the far ultraviolet flux from the old metal rich
stellar populations. The observations were completed under fine
lock. Several images were reported to be saturated, and several
images showed no sign of the target.

1.5 Completed WF/PC-2 5104 (Peculiar and Interacting Galaxies (WC01):
Cycle 4)

The WF/PC-2 was used to make images of galaxy IC391. The OSS
monitored the observations, assessed the data quality. Two images
were received and displayed in the OSS. They both were reported to
look very good!

1.6 Completed FGS 5336 (Linking the HIPPARCOS to the Extragalactic
Reference Frame: NEWHIP-B)

The Fine Guidance Sensor #3 was used to make two sets of
astrometric observations of object NEWEGOB-34. This object lies near
the apparent position of extragalactic objects. This object will
also be observed with the HIPPARCOS satellite. This data will be
used to determine the systematic rotational offset of the reference
frame of the HIPPARCOS astrometric satellite. The observations were
executed as scheduled. No anomalies were reported.

1.7 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. Several different filters were
used. The observations were taken in parallel with other prime
science observations. One observations was received and displayed.
The pointing control was almost continuously recentering during this
observation. Also, the cosmic ray density was reported to be high.

1.8 Completed Two Sets of WF/PC-2 5612 (SMOV WF/PC-2 Decontamination)

The WF/PC-2 Was used to do decontamination operations. Observations
of standard A+81D266, and K- Spot observations were also taken. A
total of nine observations were monitored and displayed. Except for
one short period of recentering, all of the observations were
reported to be nominal.

1.9 Completed GHRS/1 5274 (GHRS Side One Pulse Height Analysis/Ion Test:
Cycle 4)

The High Resolution Spectrograph (Side One) was used to make a
standard pulse height analysis (PHA) test on the detector. These
were internal observations, which will be used to measure the diode
response as a function of the threshold settings. In addition, an
ion test was also conducted. The OSS monitored the observations, and
no problems were reported.

1.10 Completed GHRS/1 5275 (GHRS Side One Threshold Adjustment Test:
Cycle 4)

The High Resolution spectrograph was used conduct an engineering
test to measure the threshold levels for the noisy channels.
Internal flats and darks were both taken. The OSS monitored the
observations, and no anomalies were noted.

1.11 Completed FOS/RD/COSTAR 5604 (COSTAR/FOS Fine Alignment - Focus
Repeat of 4745 With New Target)

The scheduled Y-Tilt and X-Tilt adjustment for the COSTAR FOS mirror
was completed as scheduled with no problems. Observations were made
using standard star WD501+527. The observations were received and
displayed in real time. No anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 7
Successful : 7
Scheduled Reacquisitions : 3
Successful : 3


One reacquisition may have terminated early due to a SBREL failure.

2.2 FHST Updates:

Scheduled :19
Successful :19

2.3 Significant HSTARs: None

2.4 Operations Notes:

SMOV activities continue uneventfully, and on schedule.

At 0212Z this morning, approximately five minutes after a day/night
transition, the low body error rate test failed and all gyros went
to high mode. The gyros were recovered to the low mode at 0527Z
using an established contingency operations procedure. There were
no other reported problems in any HST susbystem.

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

3.1 Complete FOC/96 5131 (Studies fo Spiral Nuclei: Cycle 4
Continuation)

3.2 Complete WF/PC-2 5612 (SMOV WF/PC-2 Decontamination)

3.3 Complete S/C 5604 (COSTAR/FOS Fine Alignment - Focus Repeat of 4745
With New Target)

3.4 Complete WF/PC-2 5355 (The Binary Frequency Among Solar Type Stars
in
Young Clusters: Cycle 4)

3.5 Complete FGS 4892 (Duplicity Among Hyades Stars: Cycle 3 High)

3.6 Complete WF/PC-2 5206 (The Crab Nebula)

3.7 Complete WF/PC-2 5240 (SMOV-WF/PC-2 Flat Fields Calibration)

4.0 ANOMALY STATUS:

4.1 Significant New Anomalies: None

4.2 Significant Unresolved Anomalies: None

5.0 SIGNIFICANT FORTHCOMING EVENTS:

Nothing at this time.
/DMH -END-