HUBBLE SPACE TELESCOPE DAILY REPORT #1121 PERIOD COVERED: 0700 EST Daily Status Report as of 110/1200Z. 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed WF/PC-2 5476 (Continuum Snapshot of 3CR Radio Galaxies) The WF/PC-2 was used to make snapshot images of radio galaxies 3C223.1, 3C172.0 and 3C129.0 as part of a continuum survey and to study the galaxies' morphology. The observations of all three galaxies were executed as scheduled, and no anomalies were noted. 1.2 Completed FOS/RD 5623 (SINS: The Supernova Intensive Study Target of Opportunity: Cycle 4) The Faint Object Spectrograph (Red Side) was used to make target-of-opportunity observations of supernova SN1994I. The first two onboard acquisitions were successful. The third one occurred during LOS. No anomalies were noted. 1.3 Completed WF/PC-2 5475 (A Snapshot Survey for Blue Stragglers in Magellanic Cluster Cores) The WF/PC-2 was used to make short exposure snapshot images of the blue straggler stars located in populous cluster NGC-2156. A populous cluster is the Magellanic Cloud equivalent of a galactic globular cluster. The observations were made with two different color filters. The intent is to find out if blue straggler stars exist within this cluster. The science observations still remain on the science tape recorder, and will be analyzed alter. No anomalies were noted. 1.4 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. The observations were reported to appear okay. 1.5 Completed WF/PC-2 5561 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. 2: Flats) The WF/PC-2 was used to make internal dark calibration images to monitor flat field stability and the stability of the analog-to-digital converters. The analysis of the data is pending a science tape recorder playback. No anomalies were noted. 1.6 Completed 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 data still remains on the science tape recorder, and will be analyzed later. No problems were reported. 1.7 Completed Two Sets of WF/PC-2 5562 (WF/PC-2 Cycle 4 Calibration: Internal Monitor 3: Darks) The WF/PC-2 was used to obtain several 30-minute long, dark exposures to provide ongoing calibration of the CCD dark current and to monitor and characterize the evolution of hot pixels. The observations were executed as scheduled, and no anomalies were noted. 1.8 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 galaxies. The OSS monitored the observation, and assessed the data quality. No anomalies were noted. 2.1 Guide Star Acquisitions: Scheduled Acquisitions : 5 Successful : 5 Scheduled Reacquisitions : 8 Successful : 8 2.2 FHST Updates: Scheduled :18 Successful :17 A FHST update failed at 109/1310Z. The Subsequent update was successful. 2.3 Significant HSTARs: None 2.4 Operations Notes: No anomalous behavior was reported by engineers in any HST subsystem. 3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD: 3.1 Complete Five Sets of WF/PC-2 5561 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. 2: Flats) 3.2 Complete Two Sets of GHRS/1 5595 (GHRS ECH-A Wavelength Monitor: Cycle 4) 3.3 Complete FGS 5338 (Linking the HIPPARCOS to the Extragalactic Reference Frame NEWHIP-D) 3.4 Complete WF/PC-2 5369 (HST Medium-Deep Survey: Cycle 4 Medium, High Galactic Latitude) 3.5 Complete WF/PC-2 5178 (Imaging of Distant Active Galaxies: Cycle 4 ) 3.6 Complete WF/PC-2 5476 (Continuum Snapshots of 3CR Radio Galaxies) 3.7 Complete GHRS/2 5398 (Eclipse Mapping of the Chromospheric and Transition Region Structure) 3.8 Complete WF/PC-2 5475 (A Snapshot Survey of Blue Stragglers in Magellanic Cluster Cores) 3.9 Complete GHRS/2 5597 (GHRS/ ECH-B Sensitivity Calibration: Cycle 4) 4.0 ANOMALY STATUS: 4.1 Significant New Anomalies: None 4.2 Significant Unresolved Anomalies: None 5.0 SIGNIFICANT FORTHCOMING EVENTS: The RMGA Calibration Test will be conducted from 112/1830Z to 112/2330Z (This coming Friday Afternoon). /DMH -END-