Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_97/hst_status_09_24_97 Дата изменения: Wed Sep 24 15:14:27 1997 Дата индексирования: Sun Dec 23 10:52:10 2007 Кодировка: Поисковые слова: surveyor

HUBBLE SPACE TELESCOPE

DAILY REPORT #1969

PERIOD COVERED: 0000Z (UTC) 09/23/97 - 0000Z (UTC) 09/24/97

Daily Status Report as of 267/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed Two sets of WF/PC-2 7621 (WF/PC-2 Cycle 7 Supplemental
Darks PT1/3)

The WF/PC-2 was used to make supplemental dark calibration images.
This set of calibrations is intended to obtain three dark frames every day
to provide data for monitoring and characterizing the evolution of hot
pixels. The observations were executed as scheduled, and no anomalies were
noted.

1.2 Completed STIS/CCD 7659 (Daily Darks to Update Acquisition Bad Pixel
Table)

The Space Telescope Imaging Spectrograph (CCD) was used to make dark
calibration images in order to update the acquisition bad pixel table.
Daily hot pixel lists can also be used for science data analysis. The
observations were executed as scheduled, and no anomalies were noted.

1.3 Completed WF/PC-2 7792 (HST Support for Mars Global Surveyor)

The WF/PC-2 was used to make imaging observations of the planet Mars
in support of the Mars Global Surveyor Mission during the aero-braking by
monitoring dust opacity on the planet's atmosphere. The observations were
executed as scheduled, and no anomalies were noted.

1.4 Completed STIS/CCD 7783 (STIS)

The Space Telescope Imaging Spectrograph (CCD) was used to make
observations taken in parallel with the prime science. The observations
were completed, and no problems were reported.

1.5 Completed NIC/1 7693 (NICMOS Pupil Transfer Function)

The Near Infrared Camera (Camera One) was used to make observations
of P330E-Cal in order to perform pupil transfer function observations. The
output of this program will be a two-dimensional surface fit that will give
the large scale corrections needed to flat-field the images to an accuracy
of about 2%. Also, changes in the PSF will be measured as a function of
position within the cameras. The observations were executed as scheduled,
and no anomalies were noted.

1.6 Completed Two Sets of WF/PC-2 6967 (Blue Continuum Snapshots of 3CR
Radio - Continued Galaxies)

The WF/PC-2 was used to make observations of the radio galaxies
3C136.1 and 3C133.0 . Radio galaxies are an important class of
extragalactic objects: they represent one of the most energetic
astrophysical phenomena; they may be used as probes of their environments;
and they are unique probes of the early universe. The observations were
completed as planned, and no problems were reported.

1.7 Completed STIS/MA1 7091 (STIS Pixel-To-Pixel Response Stability)

The Space Telescope Imaging Spectrograph (MA1) was used to make
observations of standard star BD8D4211 in order to determine the
pixel-to-pixel response stability. This is to illustrate that STIS has the
capability of achieving signal to noise ratio of 100:1 in both Band 1
{115-170 nm} and Band 2 {165 - 310 nm}. The observations were completed as
scheduled, and no anomalies were noted.

1.8 Completed Two Sets of NIC/2/3 7791 (NICMOS Focus Sweep at 2 FOM
positions)

The Near Infrared Camera (Cameras Two and Three) was used to make
observations of the cluster called Target-2 as part of a NICMOS focus
sweep. The main objectives of this proposal are: a} to cover sufficient
region of PAM focus space to ensure the optimal locations are included, and
b} measure vignetting and image quality at different FOM positions. The
observations were executed as schedule, and no anomalies were noted.

1.9 Completed Two Sets of NIC/1/2/3 7729 (NICMOS Short One Orbit Parallel)

The Near Infrared Camera (Cameras One, Two, and Three) was used to
obtain "JHK" imaging of sky regions while another instrument was prime.
These observations were part of the short NICMOS one-orbit parallel
program. The observations were executed as scheduled, and no anomalies
were noted.

1.10 Completed Three Sets of WF/PC-2 7786 (Pure Parallel Archive Survey
- Continuation)

The WF/PC-2 was used to make observations as part of an archival
survey program in which the images were taken in parallel with the prime
science observations. These WF/PC-2 parallel observations were obtained in
the ultraviolet in a search for interesting objects. The observations were
completed as planned, and no problems were reported.

1.11 Completed STIS/MA2 7604 (Cycle 7 MAMA Dark Measurements)

The Space Telescope Imaging Spectrograph (MA2) was used to make MAMA
dark measurements. These darks will be used in later image reductions and
also trended over the instrument's life time as an indicator of the
detector's degradation or damage. The observations were completed as
scheduled, and no problems were reported.

1.12 Completed NIC/2 7420 (A Near-Infrared Search for Very Low Mass
Companions to Stars Within 10 Parsecs of the Sun)

The Near Infrared Camera (Camera Two) was used to make searching
observations for very low mass companions to variable star BD+25D3173.
This star is known to be within 10 parsecs of the Sun. The observations
were executed as scheduled, and no anomalies were noted.

1.13 Completed NIC/2 7418 (Imaging of Younf Stellar Object Circumstellar
Nebulosity)

WF/PC-2 observations have shown that several young stellar objects
in the nearby Taurus molecular clouds are seen only indirectly via
scattered light. New NICMOS (Camera Two) images will be compared with the
existing WFPC2 images of IRAS04248 and with model reflection nebulae to
constrain the circumstellar density distributions. The dark absorption
lines already seen in these systems suggest that the NICMOS images will
reveal edge-on disks similar to the HST results for HH 30, and thus allow
direct observation of the disk geometry. The observations were completed
with no reported anomalies

1.14 Completed Three Sets of WF/PC-2 7625 (WF/PC-2 Cycle 7 Earth Flats)

The WF/PC-2 was used to make a series of Earth flat calibration
images. These flat fields will allow mapping of the OTA illumination
pattern and will be used in conjunction with previous internal and external
flats to generate new pipeline superflats. The observations were completed
as planned, and no anomalies were reported.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 7
Successful : 7
Scheduled Reacquisitions : 6
Successful : 6

2.2 FHST Updates:

Scheduled : 14
Successful : 14

2.3 Operations Notes:

A TTR was written for an occurrence at 267/0208Z when no UPDs or
GCMRs were possible due to an NCC problem.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Continuation of normal science observations and calibrations.

/DMH