HUBBLE SPACE TELESCOPE DAILY REPORT #1978 PERIOD COVERED: 0000Z (UTC) 10/06/97 - 0000Z (UTC) 10/07/97 Daily Status Report as of 280/0000Z 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed Two 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. 1.2 Completed Two Sets of STIS/CCD 7659 (Daily Darks to Update Acquisition Bad Pixel Table) The Space Telescope Imaging Spectrograph (CCD) was used to make dark calibration images in order to update the acquisition bad 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 Nine Sets of NIC/1/2/3 7796 (NICMOS MULTIACCUM Dark Characterization of Pedestal D) The Near Infrared Camera (Cameras One, Two and Three) was used to make to make MULTIACCUM dark characterization calibration observations using Pedestal D. The purpose of this proposal is to obtain on-orbit darks for the MULTIACCUM predefined sequences requested by GOs, after day 233 of 1997. The observations were executed as scheduled, and no anomalies were noted. 1.4 Completed Two Sets of WF/PC-2 6363 (The Environments and Host Galaxies of BL-Lac Objects) The WF/PC-2 was used to make snapshot survey observations of BL-Lac objects MS0317.0+1 and MS2306.1-2 in order to study their environments and their host galaxies. The goal is to investigate systematic trends in host galaxy type, unusual morphological features, nearby companion galaxies, etc. The observations were executed as scheduled, and no anomalies were noted. 1.5 Completed NIC/2 7331 (Near-IR Properties of the Bulges of Spiral Galaxies) The Near Infrared Camera (Camera Two) was used to make infrared observations of the bulge in spiral galaxy IC5271. Near-IR data at HST resolution are essential for correcting for the effect of dust and will enable us to derive robust nuclear properties for the sample. The observations were executed as scheduled, and no anomalies were noted. 1.6 Completed NIC/1/2/3 7421 (The Relation Between Quasar Luminosity and Host Galaxy Mass) The Near Infrared Camera (Cameras One, Two, and Three) was used to obtain ground-based, near-infrared imaging of the nearby quasar KUV8217+6 which have indicated a relation between the luminosity of the nucleus and the luminous mass of the host galaxy. The observations completed as planned, with no reported problems. 1.7 Completed Three 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 acquisition/ reacquisition problems mentioned in 2.3 affected the second and third iterations of this proposal. Otherwise, the observations were completed with no further problems. 1.8 Completed WF/PC-2 6355 (A UV Atlas of Nearby Galaxies) The WF/PC-2 was used to make ultraviolet observations of the nearby galaxy NGC-1380. The aim of the project is to build a reference ultraviolet atlas of galaxies whose optical images are well known, with the highest possible degree of information, covering all the morphological types and luminosity classes. The observations were executed as scheduled, and no anomalies were noted. 1.9 Completed Four 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 life time as an indicator of the detector's degradation or damage. The observations were completed as scheduled, and no problems were reported. 1.10 Completed Six 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. 1.11 Completed STIS/MA1 7434 (The Supernova Intensive Study) The Space Telescope Imaging Spectrograph (MA1) was used to continue the long-term project on supernovae by observing SN1987A. HST can make unique contributions to understanding supernovae, as has been demonstrated through this program in past years, and now STIS offers new opportunities for deepening this investigation. The aim of the proposal is to explore the UV emission from supernovae, exploit the spatial resolution of HST and press the late-time observations of supernovae into uncharted territory. The observations were completed as planned, and no anomalies were reported. 1.12 Completed NIC/1/2/3 7729 (NICMOS Short One Orbit Parallel) The Near Infrared Camera (Cameras One, Two, and Three) was used to obtain "JHK" imaging of sky regions while another instrument was prime. These observations were part of the short NICMOS one-orbit parallel program. The observations were executed as scheduled, and no anomalies were noted. 1.13 Completed Three Sets of NIC/1/2/3 7726 (NICMOS One Orbit Parallel) The Near Infrared Camera (Cameras One, Two and Three) was used to make a one orbit parallel calibration observations. The observations were executed as scheduled, and no anomalies were noted. 1.14 Completed Two Sets of 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. 1.15 Completed WF/PC-2 6519 (Parallel High Resolution Imaging of Defuse Objects in the Magellanic Clouds) The WF/PC-2 was used to make high resolution observations of a defuse object located in the Large Magellanic Cloud. These data will allow the detailed study of the morphology and spatial relationship of various inter-stellar processes. These observations were taken in parallel with the prime science observations. The observations were executed as scheduled, and no anomalies were noted. 1.16 Completed NIC/1/2/3 7794 (NICMOS MULTIACCUM Dark Characterization of Pedestal B) The Near Infrared Camera (Cameras One, Two and Three) was used to make to make MULTIACCUM dark characterization calibration observations using Pedestal B. The purpose of this proposal is to obtain on-orbit darks for the MULTIACCUM predefined sequences requested by GOs, after day 233 of 1997. The observations were executed as scheduled, and no anomalies were noted. 1.17 Completed STIS/CCD/MA1/MA2 7673 (STIS MAMA Sensitivity and Focus Monitor) The Space Telescope Imaging Spectrograph (CCD/MA1/MA2) was used to make observations of standard star GRW+70D582 in order to perform a MAMA sensitivity and focus monitoring program. This is to monitor sensitivity of each MAMA grating mode to detect any change due to contamination or other causes. The observations were executed as scheduled, and no anomalies were noted. 1.18 Completed S/C 5582 (FOC/48 Monthly Activation (Camera Section Only): Cycle 4) This proposal was executed as scheduled, and no anomalies were noted. 1.19 Completed WF/PC-2 6364 (Snapshot Survey of Proto-Planetary Nebulae and AGB Stars) The WF/PC-2 was used to make some snapshot survey observations of protoplanetary nebular system IRAS23321 to study its circumstellar envelope. The purpose is to discern the evolutionary sequence that produces axially-symmetric planetary nebulae. The observations were executed as scheduled, and no anomalies were noted. 1.20 Completed STIS/MA1 7669 (Incidence Angle Correction for Non-Concentric Slits-MAMA) The Space Telescope Imaging Spectrograph (MA1) was used to make calibration images needed to find the incidence angle correction for non-concentric slits-MAMA. This test will provide incidence angle corrections for MAMA observations using non-concentric slits, and fills in missing calibrations from ground testing. The observations were completed as planned and no anomalies were reported. 1.21 Completed WF/PC-2 7427 (Saturn's Rings) The WF/PC-2 was used to make imaging observations of both the east and west apsides of Saturn's rings. Saturn's rings are a unique dynamical laboratory and continue to present challenging problems which require additional data to attack. The observations were completed as planned, and no problems were reported. 1.22 Completed NIC/1/2/3 7608 (NICMOS Focus Monitoring) The Near Infrared Camera (Cameras One, Two, and Three) was used to determine and monitor the optimal focus and tilt settings for all three NICMOS cameras. This proposal is built to run NIC/1/2/3 sweeps on a 2-week basis. For most of the five hour interval of this proposal, the aquisition/ reacquisition problems detailed in 2.3 occurred, and the take data flag remained down. There were no further problems. 1.23 Completed STIS/CCD 7668 (Incidence Angle Correction for Non-Concentric Slits-CCD) The Space Telescope Imaging Spectrograph (CCD) was used to make calibration images needed to find the incidence angle correction for non-concentric slits-MAMA. This test will provide incidence angle corrections for CCD observations using non-concentric slits, and fills in missing calibrations from ground testing. The acquisition/reacquisition problems mentioned in 2.3 affected this proposal. 1.24 Completed STIS/CCD 7637 (CCD Residual Images after Saturation) The Space Telescope Imaging Spectrograph (CCD) was used to make observations of the standard star HD149438 to study the CCD residual images after saturation. This is intended to measure the residual effect of overillumination of the CCD as a function of color {UV and RED}. The observations were completed as scheduled, and no anomalies were reported. 1.25 Completed NIC/1/2/3 7797 (NICMOS MULTIACCUM Dark Characterization of Pedestal E) The Near Infrared Camera (Cameras One, Two and Three) was used to make to make MULTIACCUM dark characterization calibration observations using Pedestal E. The purpose of this proposal is to obtain on-orbit darks for the MULTIACCUM predefined sequences requested by GOs, after day 233 of 1997. The observations were executed as scheduled, and no anomalies were noted. 2.0 FLIGHT OPERATIONS SUMMARY: 2.1 Guide Star Acquisitions: Scheduled Acquisitions : 9 Successful : 8 Scheduled Reacquisitions : 10 Successful : 6 2.2 FHST Updates: Scheduled : 19 Successful : 17 2.3 Operations Notes: A dual FHST full maneuver update failure occurred at approximately 279/1717Z. Preliminary analysis indicates that FHST-1 failed to acquire the target star, which caused relatively large errors in V2 and V3. As a result, subsequent acquistions failed at 279/1726Z and 279/2046Z, as well as the reacquisitions at 279/1806Z, 279/1903Z, 179/1943Z, and 179/2021Z. HSTAR 6187 was written. Proposals described in 1.7, 1.22, and 1.23 were affected by the events detailed in HSTAR 6187. 3.0 SIGNIFICANT FORTHCOMING EVENTS: Continuation of normal science observations and calibrations. /DMH