Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_00/hst_status_07_07_00 Дата изменения: Fri Jul 7 14:34:50 2000 Дата индексирования: Sun Dec 23 10:15:12 2007 Кодировка: Поисковые слова: comet

HUBBLE SPACE TELESCOPE

DAILY REPORT #2659

PERIOD COVERED: 0000Z (UTC) 07/06/00 - 0000Z (UTC) 07/07/00

Daily Status Report as of 189/0000Z

1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:

1.1 Completed Two Sets of WF/PC-2 8826 (Cycle 9 Supplemental Darks pt 1)

The WF/PC-2 was used to perform a T dark calibration program that
obtains three dark frames every day in order to provide data for monitoring
and characterizing the evolution of hot pixels. There were no reported
anomalies.

1.2 Completed STIS/CCD/MA2 8665 (The Starburst - AGN Connection: The
Nature of the UV-bright Core in NGC 4303)

The Space Telescope Imaging Spectrograph (CCD and MA2) was used to
observe NGC-4303, to date the best example of the claimed starburst- AGN
connection in active galaxies. The observations completed with no reported
problems.

1.3 Completed WF/PC-2 8268 (Lensed Quasar Hosts at High Redshift)

The WF/PC-2 was used to make observations of the high redshift,
lensed quasar Q0512-3329. Gravitational lensing offers a novel way to
detect quasar host galaxies at z > 1 and to measure their properties. The
observations were completed as scheduled, and no anomalies were reported.

1.4 Completed Two Sets of STIS/CCD 8808 (POMS Test Proposal: STIS
Non-Scripted Parallel Proposal Continuation III)

The Space Telescope Imaging Spectrograph (CCD) was used to make
non-scripted, parallel observations as part of a POMS test proposal. The
observations completed with no anomalous activity.

1.5 Completed Three Sets of STIS/CCD 8439 (Bias Monitor-Part 2 C8)

The Space Telescope Imaging Spectrograph (CCD) was used to monitor
the bias in the 1x1, 1x2, 2x1, and 2x2 bin settings at gain=1, and 1x1 at
gain = 4, to build up high-S/N superbiases and track the evolution of hot
columns. The proposal completed with no reported problems.

1.6 Completed STIS/CCD 8640 (A Public STIS Survey of the Host Galaxies
of Gamma-Ray Bursts)

The Space Telescope Imaging Spectrograph (CCD) was used to obtain
high-resolution images of the fields containing gamma-ray burst with
well-localized coordinates; i.e. the burst has been localized to within
approximately one arcsecond. The goal of this survey is to obtain a
uniform sample of images of the host galaxies of these bursts. There were
no reported problems.

1.7 Completed Three Sets of WF/PC-2 8805 (POMS Test Proposal: WFII
Parallel Archive Proposal Continuation)

The WF/PC-2 was used to perform a generic target version of the
WFPC2 Archival Pure Parallel program. The program will be used to take
parallel images of random areas of the sky, following the recommendations
of the Parallels Working. The proposal completed with no reported problems.

1.8 Completed Four Sets of WF/PC-2 8457 (UV Earth Flats)

The WF/PC-2 was used to obtain a series of Ultraviolet Earth
flats. The observations were completed with no reported problems.

1.9 Completed Two Sets of WF/PC-2 8544 (POMS Test Proposal: WFII Backup
Parallel Archive Proposal II)

The WF/PC-2 was used to execute a POMS test proposal that was
designed to simulate scientific plans. No problems were encountered.

1.10 Completed Two Sets of STIS/CCD 8437 (Dark Monitor-Part 2 C8)

The Space Telescope Imaging Spectrograph (CCD) was used to monitor
the darks. The proposal completed nominally.

1.11 Completed STIS/CCD/MA2 8276 (UV Spectroscopic Investigation of any
Bright, Newly Discovered Comet)

The Space Telescope Imaging Spectrograph (CCD and MA2) was used to
investigate a bright comet that was newly discovered during Cycle 8. These
comets include comets of any dynamical class. There were no reported
problems in any of the observations.

1.12 Completed STIS/CCD/MA2 8569 (A New Survey for Low-Redshift Damped
Lyman-Alpha Lines in QSO MgII Systems)

The Space Telescope Imaging Spectrograph (CCD and MA2) was used to
support studies which have shown that most of the observable neutral gas
mass in the Universe resides in QSO damped LyAlpha {DLA} systems. However,
at low redshift , DLA can only be found by searching in the UV with
HST. By boot-strapping from the MgII statistics, we will be able to
further improve the determination of the low- redshift statistical
properties of DLA {their incidence and cosmological mass density} and open
up new opportunities for studies at low redshift. The observations
completed nominally.

1.13 Completed STIS/CCD/MA1/MA2 8265 (Reverberation Mapping of a
Narrow-Line Seyfert 1 Galaxy)

The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was
used to monitor the UV spectral variability of the narrow-line Seyfert 1
{NLS1} galaxy AKN 564 at 46 epochs in order to measure the size of the
broad emission-line region via reverberation-mapping techniques. This
measurement, and the virial mass estimate that follows from it, will
provide a key test of NLS1 models and help determine the physical mechanism
that underlies the principal component of AGN spectra, the Boroson--Green
primary eigenvector. These observations will be undertaken in parallel
with X-ray and ground-based optical observations that will allow us for the
first time to explore the multiwavelength variability characteristics of
this important subclass of active galactic nuclei. The observations
completed with no reported problems.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:
Scheduled Acquisitions: 8
Successful: 8

Scheduled Re-acquisitions: 7
Successful: 7

2.2 FHST Updates:
Scheduled: 19
Successful: 17

Per HSTAR 7712, the full maneuver updates scheduled for 188/170017Z
and at 188/170302Z failed due to FHST-1. The subsequent acquisition was
successful with minimum errors.

2.3 Operations Notes:

Operations continue to be run using CCS string "A".

Using ROP SR-1A, the SSR EDAC error counter was cleared twice.

The engineering status buffer limits were updated twice per ROP DF-18A.

A TTR was written when engineering data was lost from 188/224330Z
to 188/224412Z and from 188/224457Z to 188/224457Z due to weather problems
at White Sands.

The SI C&DH errors were reset at 188/2043Z as directed by ROP NS-5.


3.0 SIGNIFICANT FORTHCOMING EVENTS:

Continuation of normal science observations and calibrations.

/CAW