HUBBLE SPACE TELESCOPE DAILY REPORT #1119 PERIOD COVERED: 0700 EST Daily Status Report as of 108/1200Z. 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed WF/PC-2 5560 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. 1) The WF/PC-2 was used to make several internal bias calibration observations to monitor the CCD camera electronics, the optical alignment, and for contamination. A total of ten images were received and displayed. The fifth observation showed a bias jump, otherwise there was no problems. 1.2 Completed Two Sets of WF/PC-2 5415 (The Distance to the M-96 Galaxy Group: Cycle 4 Medium) The WF/PC-2 was used to make observations of Cepheid variable stars within the galaxies UGC-5889 and NGC-3368 which are located in the M-96 galaxy cluster. This is to help determine the distance to this galactic group, and to improve the determination of the Hubble constant. Two observations were received and displayed in the first set. The first observation showed a 35 second recentering event, and the second observation had a 138 second recentering event in three second bursts. No problems were seen with the second set of images. 1.3 Completed Six Sets of WF/PC-2 5476 (Continuum Snapshots of 3CR Radio Galaxies) The WF/PC-2 was used to make snapshot images of radio galaxy 3C200.0 as part of a continuum survey and to study the galaxy's morphology. Three images were received and displayed. All three were reported to look okay. 1.4 Completed GHRS/2 5443 (A Study of Galactic Gas-Phase Abundance Gradients: Cycle 4 High) The High Resolution Spectrograph was used to make observations of star HD177989 at three different wavelengths using the Echelle gratings to help measure galactic gas-phase abundance. Of particular interest are the ultraviolet interstellar absorption lines due to Si II, Zn II, Cr II, and Fe II. The observations were completed without apparent incident. The onboard 5X5 spiral target acquisition located the target in map six. There were several recentering events reported. Two observations were received and displayed, and it was reported to look okay. 1.5 Completed WF/PC-2 5570 (WF/PC-2 Cycle 4 Calibration: Earthflats. Large Set) The WF/PC-2 was used to make a set of Earth flat calibration images using different filters in order to construct high quality flat fields of the OTA illumination pattern. A total of eight images were received and displayed. Four were underexposed, and four were saturated. 1.6 Completed WF/PC-2 5562 (WF/PC-2 4 Calibration: Internal Monitor 3: Darks) The WF/PC-2 was used to obtain a 30-minute long, dark exposure to provide ongoing calibration of the CCD dark current and to monitor and characterize the evolution of hot pixels. The observation was dumped from the spacecraft; but due to TAC problems the data was not received. A Line Outage Recorder (LOR) playback was requested. The observation was received and displayed. It was reported to be nominal. 1.7 Completed WF/PC-2 5351 (Properties of Interstellar Redshift Galactic Disks Causing Damped Lyman Alpha) The WF/PC-2 was used to make observations to study the diffuse material at intermediate redshifts that is identified by absorbing Lyman-Alpha spectrum from quasar 3C196.0. The observations were executed as scheduled, and no anomalies were noted. 1.8 Completed WF/PC-2 5612 (SMOV WF/PC-2 Decontamination) The WF/PC-2 was used to perform decontamination operations. Observations of standard A+81D266, and K-Spot observations were also taken. The OSS monitored the observations, and assessed the data quality. No anomalies were noted. 1.9 Completed FGS 5054 (High Speed Astrometry: A Search for Planetary Companions to Low-Mass Stars) The Fine Guidance Sensors were used to make observations of the position of the star Proxima Centauri to determine the presence of a Jupiter sized planet in orbit about the target star. The OSS monitored the observations and assessed the data quality. No problems were reported. 1.10 Completed WF/PC-2 5092 (GTO Low Latitude Parallel Program: Cycle 4) The WF/PC-2 was used to make observations taken in parallel with the prime science observations. This is part of a survey to take pictures of a large number of fields within 30 degrees of the galactic plane. The intent is to determine the luminosity function of low mass stars and the mass density in the solar neighborhood. The observations were executed as scheduled, and no anomalies were reported. 1.11 Completed WF/PC-2 5173 (WF/PC-2 Images of Ejecta From Eta Carina) The WF/PC-2 was used to make observations of the Eta-Carnea nebula to study its morphology and the dynamics of the stellar ejecta. Six observations were received and displayed. They were reported to be nominal. 1.12 Completed Two Sets of GHRS/2 5398 (Eclipse Mapping of the Chromosphere and Transition Region Structure) The High Resolution Spectrograph was used to obtain high signal to noise ratio spectra of the eclipsing binary star HR2554 (aka, HD50337) which is a known Zeta Aurigae-Type binary star. This system consists of a dwarf star and a G6 giant star. The light from the dwarf will be used as a probe of the outer atmosphere of the giant star. The first set of observations were executed in fine lock without apparent problems. However, the second set of observations were missing one observation. One observations appeared to run too long, and ran over into the time of the next observation. An HSTAR was written for the missing observation. Several recentering events were also reported. 1.13 Completed WF/PC-2 5397 (Determination of the Extragalactic Distance Scale: Cycle 4 High) The WF/PC-2 was used to make images of galaxy NGC-5457-FL to help establish the Hubble constant to an accuracy of better than 10% by measuring the periods of Cepheid variable stars within the galaxy. One image was received and displayed. It was reported to have had a total of 17 recentering events, for a total of 81 seconds. No other problems were noted. 1.14 Completed FOC 5139 (A Search for Low-Mass Companions to Nearby Astrometric Binaries) The Faint Object Camera (f/96) was used to to search for faint companions near the astrometric binary star GL866A. Two FOC images were received and displayed. It was reported that there appeared to have been an error in the stars coordinates. 1.15 Completed WF/PC-2 5091 (GTO High Latitude Parallel Program: Cycle 4) The WF/PC-2 was used in parallel with the prime science observations to make high galactic latitude observations greater than +/-30 degrees. These are randomly chosen fields to sample very low luminosity stars in the solar galactic neighborhood, galactic halo objects, and distant galaxies. Two images were received and displayed. They both were reported to be nominal. 1.16 Completed GHRS/2 5473 (The Interstellar Abundance of Krypton: Cycle 4 High) The High Resolution Spectrograph was used to make observations of the star Kappa Orionis which is an O/B class star to study the abundance of Krypton to provide information about stellar nucleosynthesis and stellar evolution. Two observations were received and displayed. No anomalies were noted. 1.17 Completed WF/PC-2 5454 (Ellipticals with Kinamatically Distinct Cores: Cycle 4 Medium) The WF/PC-2 was used to make observations of the small elliptical galaxy NGC-1700 which contains a massive core which is kinamatically distinct from the rest of the galaxy. 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 5098 (UV Spectra of Low Redshift QSOs: Cycle 4 Observations) The WF/PC-2 was used to make two ultraviolet images of the Low-Z quasi-stellar object 3C286 to obtain images and spectra of the surrounding galaxy. The observations were monitored by the OSS, and the data quality was assessed. No anomalies were noted. 1.20 Completed WF/PC-2 5324 (Globular Cluster Core Imaging) The WF/PC-2 was used to make observations of the center of globular cluster NGC-6624 to try and detect the flatting of the density profile which could result from binary heating and core oscillations. The observations were executed as scheduled, and no anomalies were noted. 2.0 FLIGHT OPERATIONS SUMMARY: 2.1 Guide Star Acquisitions: Scheduled Acquisitions : 28 Successful : 28 Scheduled Reacquisitions : 22 Successful : 22 2.2 FHST Updates: Scheduled :46 Successful :46 2.3 Significant HSTARs: None 2.4 Operations Notes: There were no significant reported problems in any HST subsystem. 3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD: 3.1 Complete Two Sets of WF/PC-2 5562 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. 3: Darks) 3.2 Complete WF/PC-2 5623 (SINS: The Supernova Intensive Study Target of Opportunity: Cycle 4) 3.3 Complete GHRS/2 5357 (Cepheid Masses: Cycle 4 High) 3.4 Complete WF/PC-2 5570 (WF/PC-2 Cycle 4 Calibration: Earthflats, Large Set) 3.5 Complete FOC/96 5140 (Observations of the Narrow Line Regions in Nearby Seyfert Galaxies) 3.6 Complete WF/PC-2 5092 (GTO Low Latitude Parallel Program: Cycle 4) 3.7 Complete WF/PC-2 5560 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. 1) 3.8 Complete GHRS/2 5398 (Eclipse Mapping of the Chromospheric and Transition Regions Structure) 4.0 ANOMALY STATUS: 4.1 Significant New Anomalies: None 4.2 Significant Unresolved Anomalies: None 5.0 SIGNIFICANT FORTHCOMING EVENTS: Nothing at this time. /DMH -END-