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From: STOSC::SMM "On-Duty SMM x5074" 25-JAN-1993 20:34:52.31
To: @[SMM.DIS]HST_STAT
CC:
Subj: HST STATUS REPORT, 01/22 - 01/25

HUBBLE SPACE TELESCOPE
DAILY REPORT #808

PERIOD COVERED: 0800 EST 01/22/93 - 0800 EST 01/25/93

Daily Status Report as of 025/1200Z.

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed GHRS/UV2 1095 (Variability of High Luminosity Stars)

The High Resolution Spectrograph was used to make ultraviolet
observations of the vary massive high luminosity star HD15570. The
observations were executed as scheduled, and no problems were
reported.

1.2 Completed GHRS/2 3578 (Line Eclipse Mapping of Accretion Disk Wind)

The High Resolution Spectrograph was used to make four spectral
observations of the eclipse of the accretion disk of the cataclysmic
variable star UX Ursa Majoris. All four observations were received
and displayed. All of the spectral observations were reported to
look normal.

1.3 Completed GHRS/2 4462 (SSA A2 Offset Verification)

The High Resolution Spectrograph was used to make three positional
observations of HD141556 to measure the position of the Small
Science Aperture (SSA) with respect to the Large Science Aperture
(LSA). All three to the target acquisitions and spectral
observations were successful.

1.4 Completed PC 4347 (Flood Retention Test)

The Planetary Camera was used to make three Earth flat calibration
observations using filter F439W. These observations will be compared
with those made in the past using the same filter, to determine how
much of the last ultraviolet flood still remains. The observations
were monitored in the OSS, and no problems were reported.

1.5 Completed Two Sets of GHRS/2 2537 (Physical Conditions of
Interstellar Gas)

The High Resolution Spectrograph was used to make high signal to
noise ratio spectral observations of gas within 150 light years
using star HD102647 (aka, Beta Leo, Denobola) to study the hot and
cold regions of the interstellar medium. The spectral observations
looked normal. The wave calibration images were contaminated by
light from the target (which entered the HRS through the Small
Science Aperture).

1.6 Uplinked Updated Ephemeris Tables, Per MOSES 2871

1.7 Completed WFC-PC 4109 (Rapid Internal Monitor)

Both the Wide Field Camera and the Planetary Camera were used to
make internal flat observations to check for different forms of
contamination (i.e., daisies and measles). The OSS monitored to
observations and assessed the data quality. No problems were
reported.

1.8 Completed Two Sets of PC 3848 (Separate Light Curves of Pluto and
Charon)

The Planetary Camera was used to make two observations of the planet
Pluto, and its moon Charon (each individually). Each of the images
were taken using a comparison star which was about 25 arcseconds
from the targets. The observations were completed as scheduled, and
no problems were reported.

1.9 Completed FOS/RD 4052 (Inner Regions of Quasars)

The Faint Object Spectrograph was used to make four ultraviolet
observations of the inner regions of quasar B20923+39. The
observations were received and displayed. They were reported to look
a little noisy, but were otherwise okay.

1.10 Completed WFC 3917 (HST Medium Deep Survey, Part 1)

The Wide Field Camera was used to make two high latitude
observations which were taken in parallel with the prime science
observations. Both observations were received and displayed in the
OSS. They were reported to look okay.

1.11 Completed WFC 4216 (Calibration of Supernova)

The Wide Field Camera was used to take three images of object
IC4182. The images were received and displayed, and reported to look
normal.

1.12 Completed WFC 2227 (Determine Extragalactic Distance Scale: M-81)

The Wide Field Camera was used to make observations to the galaxy
NGC-3031 (aka, M-81) to search for variable Cepheid stars using both
filter F555W and F785LP individually. The observations were executed
as scheduled, and no problems were reported.

1.13 Completed GHRS/2 3444 (Gas in Individual Interstellar Clouds)

The High Resolution Spectrograph was used to make observations of
early type star HD36486 to study the interstellar clouds which lie
along the line of sight to that star. The observations were
monitored in the OSS, and no problems were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 15
Successful : 15
Scheduled Reacquisitions : 28
Successful : 28
Losses of Lock : 0

2.2 FHST Updates:

Scheduled : 25
Successful : 26

2.3 Significant HSTARs: None

2.4 Operations Note: None

3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD:

3.1 Complete FOC/96 4152 (Observations to MOnitor Desorption)

3.2 Complete FOC/96 4069 (Far-UV Spectra of High Red-Shift Quasars)

3.3 Complete WFC 1297 (GTO High Latitude Parallel Program)

3.4 Complete FOS/RD 3840 (Evolution of Carbon, Nitrogen and Oxygen in
ST)

3.5 Uplink Updated Ephemeris Tables, Per MOSES 2871

3.6 Complete WFC 4105 (HST Medium-Deep Survey: High Latitude)

3.7 Complete FOS/RD 4698 (FOS Dark Monitoring)

3.8 Complete GHRS/2 3444 (Gas in Interstellar Clouds)

3.9 Start of Zero-Gyro (On-Orbit) Test 026/1200Z through 028/0000Z.

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.

The Zero-Gyro (On-Orbit) Test will be held from Tuesday 026/1200Z
through Thursday 028/0000Z. The Fight Readiness Review meeting (FRR)
was held today Friday Jan. 22 .

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