HUBBLE SPACE TELESCOPE DAILY REPORT #2019 PERIOD COVERED: 0000Z (UTC) 12/08/97 - 0000Z (UTC) 12/09/97 Daily Status Report as of 343/0000Z 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed FOC/96/WF/PC-2/STIS/CCD/NIC/1/2 7697 (Focal Plane Monitoring Program) All of the onboard instruments were used to make astrometric and alignment observations of the standard stars 415W3, 421W3, 237W3 as part of the focal plane monitoring program. The observations were completed as planned, and no anomalies were reported. 1.2 Completed WF/PC-2/STIS/CCD/NIC/1/2 7307 (The Formation and Evolution of Rich Star Clusters in the LMC) The WF/PC-2, the Space Telescope Imaging Spectrograph (CCD), and the Near Infrared Camera (Cameras One and Two) were used to make observations of the rich star cluster NGC-1805 which is located within the Large Magellanic Cloud in order to study its formation and evolution. These observations will help us understand the origin and evolution of rich star clusters in our own Galaxy. The observations were complete as scheduled, and no anomalies were reported. 1.3 Completed NIC/2/3 7453 (The SBF Hubble Diagram) The Near Infrared Camera (Camera Two and Three) was used to make deep NICMOS observations of galactic cluster Abell-3389 to determine its distance using the surface brightness fluctuation {SBF} method. HST is essential for its high spatial resolution which makes it possible to detect and remove globular clusters and background galaxies that contaminate the SBF measurement. The observations were executed as scheduled, and no anomalies were noted. 1.4 Completed STIS/CCD 7802 (Daily Darks to Update Acquisition Bad Pixel Table) The Space Telescope Imaging Spectrograph (CCD) was used to make calibration observations to obtain daily darks to update the acquisition bad pixel table. These darks are intended to identify hot pixels for update to the acquisition on-board FSW hot 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. 1.5 Completed 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. 1.6 Completed NIC/1/2/3 7328 (High Resolution IR Imaging Survey (IRIS) of the Centers of the Nearest Active Galaxies) The Near Infrared Camera (Camera One, Two and Three) was used to make high resolution infrared observations of the nearest active Markarian galaxy NGC-4235 in order to study its inner nuclear region. Observing in the near-IR minimizes the dust obstruction and maximizes sensitivity to the old stellar population which dominates the mass. The observations were executed as scheduled, and no anomalies were noted. 1.7 Completed 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. 1.8 Completed WF/PC-2 6549 (Calibration of Nearby Type Ia Supernovae as Standard Candles: NGC 3627 and SN 1989B) The WF/PC-2 was used to make observations of the Type Ia supernova SN 1989B which is located in galaxy NGC-3627. The experiment is designed to determine the mean absolute magnitude of the B and V of SNe Ia, and how large the dispersion is about this mean. The observations were completed as planned, and no problems were reported. 1.9 Completed NIC/2/3 7811 (NICMOS Modified One Orbit Parallel) The Near Infrared Camera (Cameras Two and Three) was used to obtain "JH" imaging, and G096 and G141 spectroscopy of sky regions when another instrument is prime. The observations were completed as planned, and no anomalies were reported. 1.10 Completed Two Sets of STIS/CCD 7781 (STIS Non-Scripted Parallel Archive Proposal - Full Orbit) The Space Telescope Imaging Spectrograph (CCD) was used for a non-scripted parallel archive proposal (one full orbit). The observations were executed as scheduled, and no anomalies were noted. 1.11 Completed WF/PC-2 6431 (Determination of the Extragalactric Distance Scale) The WF/PC-2 was used to make observations of the galaxy NGC-3319 to be used in measuring the periods of Cepheid variable stars within this galaxy. This will allow for a more accurate estimate of the distances to these galaxies through the period-luminosity relation for the Cepheid stars. The observations were executed as scheduled, and no anomalies were noted. 1.12 Completed Two Sets of NIC/2/3 7812 (NICMOS Modified Short One Orbit Parallel) The Near Infrared Camera (Cameras Two and Three) was used to obtain "JH" imaging of sky regions when another instrument is prime. Two dither positions are obtained for each filter. The observations were completed as scheduled, and no anomalies were reported. 1.13 Completed STIS/CCD 7783 (STIS Parallel Science) 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. 2.0 FLIGHT OPERATIONS SUMMARY: 2.1 Guide Star Acquisitions: Scheduled Acquisitions : 7 Successful : 7 Scheduled Reacquisitions : 4 Successful : 4 2.2 FHST Updates: Scheduled : 13 Successful : 13 2.3 Operations Notes: Analyses of the FGS calibration data determined that the new FGS/FGS alignment tables had improved performance, and the tables were determined to be operational. 3.0 SIGNIFICANT FORTHCOMING EVENTS: Continuation of normal science observations and calibrations. /DMH