Hubble Space Telescope Daily Report #2655 06/29/00

HUBBLE SPACE TELESCOPE
 
  DAILY REPORT #2655
 
PERIOD COVERED:  0000Z (UTC) 06/28/00 – 0000Z (UTC) 06/29/00
 
Daily Status Report as of 181/0000Z
 
1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:
 
    1.1 Completed 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.
 
    1.2 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.
 
    1.3 Completed STIS/CCD 8437 (Dark Monitor-Part 2 C8)
 
        The Space Telescope Imaging Spectrograph (CCD) was used to monitor the darks.  The proposal completed nominally.
 
    1.4 Completed Two Sets of WF/PC-2 8645 (A Survey of Mid-UV Morphology of Nearby Galaxies: Galaxy Structure and Faint Galaxy)
 
        The WF/PC-2 was used to investigate the relation between star formation and the global physical characteristics of galaxies to interpret the morphologies of distant galaxies in terms of their evolutionary status.  The observations completed nominally.
 
    1.5 Completed WF/PC-2 8174 (Internal Velocity Distribution in Globular Clusters, II)
 
        The WF/PC-2 was used to determine the internal velocity distribution of the globular cluster NGC 6205 in its core.  The proposal completed with no anomalous activity.
 
    1.6 Completed Two Sets of STIS/CCD 8410 (STIS CCD Hot Pixel Annealing C8)
 
        The Space Telescope Imaging Spectrograph (CCD) was used to assess the effectiveness of the CCD hot pixel annealing process by measuring the dark current behavior before and after annealing and by searching for any window contamination effects.  In addition CTE performance is examined by looking for traps in a low signal
 
    1.7 Completed WF/PC-2 8230 (Snapshot Survey of Dynamically Close Galaxy Pairs from z=0.1 to z=0.5)
 
        The WF/PC-2 was used to make snapshot survey observations of galactic cluster Gal-Clus-0.  This is to obtain snapshot images of a large, well-defined, and dynamically selected sample of close galaxy pairs at moderate redshift.  The observations were executed as scheduled, and no anomalies were noted.
 
    1.8 Completed WF/PC-2 8301 (A Snapshot Survey of X-ray Selected Central Cluster Galaxies)
 
        The WF/PC-2 was used to make snapshot survey observations of the x-ray, central cluster galaxy RXJ1750.2.  Central cluster galaxies are the most massive stellar systems known and have been used as standard candles for many decades.  The observations were executed as scheduled, and no anomalies were noted.
 
    1.9 Completed 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.
 
    1.10 Completed WF/PC-2 8461 (Cycle 8 Supplemental Darks pt3/3)
 
        The WF/PC-2 was used to obtain three dark frames every day to provide data for monitoring and characterizing the evolution of hot pixels.  The proposal completed nominally.
 
2.0 FLIGHT OPERATIONS SUMMARY:
 
    2.1 Guide Star Acquisitions:
      Scheduled Acquisitions: 9
Successful: 9
 
  Scheduled Re-acquisitions: 8
Successful: 8
 
    2.2 FHST Updates:
Scheduled: 20
Successful: 20
 
    2.3 Operations Notes:
 
        CCS "B" string was re-cycled at 181/0656Z because the command ISP processes were down (HSTAR 7702).
 
3.0 SIGNIFICANT FORTHCOMING EVENTS:
 
        Continuation of normal science observations and calibrations.