Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_93/hst_status_06_04_93 Дата изменения: Tue Jun 8 06:44:13 1993 Дата индексирования: Sun Dec 23 10:26:51 2007 Кодировка:

HUBBLE SPACE TELESCOPE
DAILY REPORT #902

PERIOD COVERED: 0800 EST
Daily Status Report as of 156/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Uplinked Updated Ephemeris Tables, Per MOSES 2871

1.2 Completed FOS/BL 3616 (The Upper Atmosphere of Uranus and Neptune)

The Faint Object Spectrograph was used to make far ultraviolet
observations of the upper atmosphere of the planet Uranus to study
its molecular hydrogen emissions. The onboard target acquisition was
successful. Sixteen spectral observations were received and
displayed. They were reported to be okay. Some of the final
observations were reported to have an occasional recentering event.

1.3 Completed WFC/PC 4109 (WF/PC Cycle 2 Calibration: Rapid Internal
Monitor)

Both the Planetary Camera and the Wide Field Camera were used to
make internal flat calibration images with filter F555W to check for
daisies and measles (i.e., new forms of contamination), and the
return of quantum efficiency hysteresis. The observations were
executed as scheduled, and no problems were reported.

1.4 Completed Three Sets of FOC/96 4804 (UV Imaging of Nearby Galaxies
with FOC/96)

The Faint Object Camera (f/96) was used to make one ultraviolet
image of the nearby galaxy ESO-1327-1. The exposure was ten minutes
long, and used filter F220W. The observation was monitored, and the
data was received and displayed. The data was reported to look
normal.

1.5 Completed WFC 4277 (Calibration of Nearby Galaxies Type IA Supernova
as Standard Candles)

The Wide Field Camera was used to make two images of the galaxy
NGC-5253 to study Cepheid variable stars located inside the galaxy.
These stars can be used to determine the distance to the galaxy.
Both observations were monitored in the OSS. Both images were
reported to look normal.

1.6 Completed FOS/RD 3887 (Integrated Dynamical and Spectroscopic
Observations of Jupiter)

The Faint Object Spectrograph was used to make several spectral
observations of the planet Jupiter at different latitudes along its
central meridian to study its atmosphere. Observations were made at
the equator, and at latitudes of 5, 12, 48, 25, and 33 degrees. The
observations were monitored in the OSS, and no problems were
reported.

1.7 Completed WFC/PC 4207 (WF/PC Cycle Calibration: Photometric
Calibration Monitor)

Both the Planetary Camera and the wide Field Camera were used to
monitor the ultraviolet flux from standard star BD+75D325 and the
cameras throughput was monitored. The observations were displayed in
the OSS, and they were reported to look normal.

1.8 Completed HSP/VIS 4569 (A Search for Microflaring Activity in Dwarf
M Class Stars - Cycle 3)

The High Speed Photometer was used to make two observations of the M
class dwarf star AGK+81D266 looking for microflares which have short
durations and occur with numbers inversely proportional to the
flares energy. Both observations were received in real time. The
data indicated that the target acquisition was successful. The
science observations occurred during LOS. After the science tape
recorder playback, they were reported to look normal.

1.9 Completed WFC 4381 (HST Medium-Deep Survey - Cycle 3)

The Wide Field Camera was used to make one high latitude medium deep
sky survey image taken in parallel with the prime science
observations. The observation was received and displayed in the OSS.
It was reported to look normal.

1.10 Completed WFC 4348 (Long Period Variables of M81: Cycle 3 Medium)

The Wide Field Camera was used to make two images of the galaxy
NGC-3031 (aka, M-81) to look for long-period variable stars. The
observations were monitored and displayed in the OSS. They were
reported to look okay.

1.11 Completed PC 3603 (Snapshot of Protoplanetary Nebulae)

The Planetary Camera was used to make two snapshot images of the
protoplanetary system V354-LAC To study its current morphology. The
observations were received and displayed in the OSS. They were
reported to look okay.

1.12 Completed FOC/96 4353 (Hubble Space Telescope Imaging of IO: Cycle
3 High )

The Faint Object Camera was used to stud Jupiter's moon Io, to make
ultraviolet and visible images in order to determine the abundance
and distribution of surface and atmosphere constituents,
particularly sulfur dioxide. The dark calibration observations was
executed on gyros, and the other observations were executed in fine
lock. No problems were reported.

1.13 Completed HSP/UV2 4307 (Radial and Non - Radial Pulsations in Hot
White Dwarfs - Cycle 3 Medium)

The High Speed Photometer was used to make ultraviolet observations
of the Hot (120,00 to 140,000 Deg. K.) white dwarf star PG1159-035
which is known to exhibit non-radial pulsations. The observations
were executed as scheduled, and no problems were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 24
Successful : 23

157/0734Z, Failed the acquisition of the
designated guide star for FGS 1&3, Failed Fine
Lock.

Scheduled Reacquisitions : 15
Successful : 15
Losses of Lock : 0

2.2 FHST Updates:

Scheduled : 20
Successful : 20

2.3 Significant HSTARs: None

2.4 Operations Note: None

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

3.1 Complete WFC 5010 (Determination of the Extragalactic distance
Scale. III. M-101)

3.2 Complete FOC/96 4804 (Ultraviolet Imaging of Nearby Galaxies FOC/96)

3.3 Complete PC 3982 (Physical conditions in the Narrow - Lined Region)

3.4 Complete GHRS/2 4927 (GHRS SSA Peakup test - Part 1)

4.0 ANOMALY STATUS:

4.1 Significant New Anomalies: None

4.2 Significant Unresolved Anomalies: None

5.0 SIGNIFICANT FORTHCOMING EVENTS:

Flight Software
---------------

An installation of version 9.0 of the DF-224 flight software is
planned for June 9-10. This will be the first time a complete new
DF-224 version has been installed on the spacecraft since launch. A
successful pre-Flight Readiness Review for this installation was
held last week. Final testing of the 9.0 release is under way in the
VEST and DSTIF. Additional communications requirements are being
coordinated with the NCC.

/DMH -END-