HUBBLE SPACE TELESCOPE DAILY REPORT #2024 PERIOD COVERED: 0000Z (UTC) 12/15/97 - 0000Z (UTC) 12/16/97 Daily Status Report as of 350/0000Z 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed Three Sets of WF/PC-2 7620 (WF/PC-2 Cycle 7 Standard Darks) The WF/PC-2 was used to make a series of Cycle 7 standard dark calibration images. This dark calibration program obtains dark frames every week in order to provide data for the ongoing calibration of the CCD dark current rate, and to monitor and characterize the evolution of hot pixels. The observations were executed as scheduled, and no anomalies were noted. 1.2 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. 1.3 Completed Four 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. 1.4 Completed Two Sets of 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 lifetime as an indicator of the detector's degradation or damage. The observations were completed as scheduled, and no problems were reported. 1.5 Completed STIS/CCD 7462 (Velocity Structure in High Redshift Galaxies) The Space Telescope Imaging Spectrograph (CCD) was used to make observations of the high redshift galaxy E-0050-275 in order to study its velocity structure and to make imaging spectrographic observations of its recently-discovered optical Einstein ring. A wavelength calibration observation was also taken. All observations were executed as scheduled, and no anomalies were noted. 1.6 Completed WF/PC-2 7202 (The WF/PC-2 B Band Parallel Survey: A Systematic and Synoptic Study of Galaxy Formation and Evolution - Short Orbit Case) The WF/PC-2 was used to make observations as part of a B-Band survey to make synoptic study of galaxy formation and evolution. These observations were taken in parallel with the prime science observations. They were completed as planned, and no anomalies were reported. 1.7 Completed NIC/1/2 7238 (High Resolution IRIS of the Centers of the Nearest Interstellar Matter) The Near Infrared Camera (Cameras One and Two) was used to reveal the structure of molecular filaments and condensations of object Crab-FK10 to obtain a series of narrow-band images in H_2 and [Fe II] of both filaments, FK6 and FK10 {Fesen & Kirshner 1982}. Images in He I {F108N/F113N} will also be of interest. Parallel observations with the other NICMOS cameras will yield valuable information on line emission and polarization at other selected positions in/near these filaments. The observations completed as planned with no reported problems. 1.8 Completed WF/PC-2 6934 (WF/PC-2 Cycle 6 Photometric Zero-Point) The WF/PC-2 was used to make observations of standard star Rubin149 in order to complete a zero-point calibration observation. The purpose of this program is to verify synthetic zero-point of the WF/PC-2 filters. The observations were executed as scheduled, and no anomalies were noted. 1.9 Completed 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. 1.10 Completed NIC/1/2 7258 (The Nature of the Compact Infrared Core Sources in Powerful FR II Radio Galaxies) The Near Infrared Camera (Cameras One and Two) was used to make observations of the compact infrared nuclear core region of the powerful radio galaxy 3C405. It is hoped that these observations will provide some of the most compelling evidence for the idea that all powerful radio galaxies contain luminous quasars which are hidden from our direct view by obscuring torii. The observations were completed as planned, and no anomalies were reported. 1.11 Completed WF/PC-2 7203 (Cosmology with the Medium Deep Survey - Short Orbit Cases) The WF/PC-2 was used to take short (about 20 minute) exposures, to be taken in parallel with the prime science observations, using the I filter. These exposures are part of the medium-deep survey, which emphasizes exposures that will be useful in obtaining cosmological parameters. The observations were completed as planned, and no problems were reported. 1.12 Completed Two 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. 2.0 FLIGHT OPERATIONS SUMMARY: 2.1 Guide Star Acquisitions: Scheduled Acquisitions : 8 Successful : 8 Scheduled Reacquisitions : 8 Successful : 8 2.2 FHST Updates: Scheduled : 22 Successful : 22 2.3 Operations Notes: The STIS MCE reset on MAMA1, with low voltage on and outside the SAA, at 349/105102Z. HSTAR 6273 was written. The error log was dumped. Recovery of the MAMA will be accomplished via the SMS at the time of the next MAMA1 high voltage on, 353/191637Z. 3.0 SIGNIFICANT FORTHCOMING EVENTS: Continuation of normal science observations and calibrations. /DMH