Status Report

Hubble Space Telescope Daily Report #2659 07/07/00

By SpaceRef Editor
July 7, 2000
Filed under

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 1×1, 1×2, 2×1, and 2×2 bin settings at gain=1, and 1×1 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.

SpaceRef staff editor.