HUBBLE SPACE TELESCOPE DAILY REPORT #1114 PERIOD COVERED: 0700 EST Daily Status Report as of 101/1200Z. 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 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 clusters NGC-419, NGC-1868, and NGC-1847. 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. For the first cluster two observations were received and displayed. There were some recenterings, but no other problems. The next two objects were observed during LOS, and the data remains on the science tape recorder. The data will be analyzed later. No anomalies were noted. 1.2 Completed WF/PC-2 5562 (WF/PC-2 Cycle 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. One image was received and displayed in the OSS. The image was reported to look okay. 1.3 Completed FGS 5333 (Linking the HIPPARCOS to the Extragalactic Reference Frame, BR12-23, Part 2) The FGSs were used to obtain astrometric observations on several stars whose apparent positions lie near extragalactic objects. These stars will also be observed with the HIPPARCOS satellite. The intent is to tie the HIPPARCOS reference frame to the extragalactic frame. Five astrometric observations were monitored in real-time. Observations of the third object ended with a Stop Flag set, but the other four observations were successful. 1.4 Completed WF/PC-2 5370 (HST Medium-Deep Survey: Cycle 4 High Galactic Latitude) The WF/PC-2 was used in parallel with the prime science observations to make high galactic latitude observations as part of a medium-deep sky survey. The main purpose of these observations is to study the evolution and structure of galaxies. Two observations were received and displayed. there was one recentering event, and lots of cosmic ray hits. Otherwise, there were no problems. 1.5 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, and K-Spot calibration observations to monitor the CCD camera electronics, the optical alignment, and for contamination. A total of ten images were taken. Ten observations were received and displayed. No problems were noted. 1.6 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-FI to help establish the Hubble constant to an accuracy of better than 10% by measuring the periods of Cepheid variable stars within the galaxies. Five images were received and displayed. No problems were noted other than some recenterings during most of the exposures. 1.7 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. A total of nine observations were monitored and displayed. The target star was reported to be saturated in the last two images. No other anomalies were noted. 1.8 Completed GHRS/1 5278 (GHRS N1 and G140L Sensitivity Calibrations: Cycle 4 ) The High Resolution Spectrograph (Side One) was used to make calibration observations of ultraviolet standard star BD28D4211 to determine if the N1 mirror may be used for target acquisitions and to re-establish the sensitivity calibration for the G140L grating. 19 observations were monitored and displayed. The onboard Large Science Aperture (LSA) target acquisition was successful, and the confirmation map showed the target well centered. The onboard Small Science Aperture (SSA) target acquisition was also successful. No anomalies were noted. 1.9 Completed WF/PC-2 5476 (Continuum Snapshots of 3CR Radio Galaxies) The WF/PC-2 was used to make snapshot images of radio galaxies 3C287.1 and 3C238.0 as part of a continuum survey and to study the galaxies' morphology. Two images were received and displayed. Both were reported to look okay. 1.10 Completed Three sets of 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 sixteen images were received and displayed. Four images were reported to be saturated, two were underexposed, and ten were okay. 1.11 Completed FOS/RD 5530 (FOS Location of Spectra and Aperture) The Faint Object Spectrograph (Red Side) was used to make Y-base maps of the FOS detectors using internal lamps. The purpose is to determine the location of the spectra on the diodes. A total of nine observations were received and displayed. They all were reported to be okay. 1.12 Completed FOC/96 5140 (Observations of the Narrow Line Regions in Nearby Seyfert Galaxies) The Faint Object Camera (f/96) was used to make observations at several different wavelengths of Seyfert galaxy MRK-79 which is located near the Cygnus A source. This is to study relations between the radio and optical emissions. The OSS monitored the observations, and assessed the data quality. Six images were received and displayed. They were reported to be probably satisfactory, though most were saturated in the center. 1.13 Completed WF/PC-2 5092 (GTO Low Latitude Parallel Program: Cycle 4) The WF/PC-2 was used to make an observation 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 image was received as scheduled, and it was reported to look okay. 1.14 Completed WF/PC-2 5090 (Large Area/ Multicolor Survey: Cycle 4) The WF/PC-2 was used to make deep exposure images of field #1415 as part of a large area, high galactic latitude, multicolor sky survey to learn more about the distribution of galaxies, their morphology, distribution in magnitude and redshift, and evolution of galactic luminosity, function, and colors. Two images were received and displayed. Except for some recenterings, no other anomalies were noted. 1.15 Completed Three Sets WF/PC-2 5561 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. 2: Flats) The WF/PC-2 was used to make ultraviolet flat calibration images to monitor flat field stability and the stability of the analog-to-digital converters. Two observations were monitored by the OSS, and no anomalies were noted. 1.16 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 galaxy UGC-5889 which itself is 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. Except for some recenterings, no other problems were noted. 1.17 Completed GHRS/2 5300 (Probing the Outer Galactic Halo: Cycle 4 High) The High Resolution Spectrograph (Side Two) performed observations of AGN F5 as a probe to study the physical properties of the gas in the Outer Galactic Halo. The observations were made using grating G160M. Much of the data still remains on the science tape recorder, and will be analyzed later. Except for some recentering events, no anomalies were noted. 1.18 Completed GHRS/2 5506 (The Deuterium Abundance in Moderate Redshift QSO Systems) The High Resolution Spectrograph (Side Two) was used to make observations of QSO 0454-220. This is to attempt to measure the deuterium to Hydrogen ratio in the spectrum of the highly red-shifted quasar. A wavelength calibration image was also made. The observations were executed as scheduled, no anomalies were noted. 1.19 Completed FGS 5174 (Astrometric Companion Search: Cycle 4) FGS #3 was used to make astrometric observations of the possible binary dwarf star W922 to look for an astrometric, unseen, low mass companion. The OSS monitored the observations and assessed the data quality. No anomalies were noted. 1.20 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 observations were executed parallel to the astrometry, and no anomalies were noted. 2.0 FLIGHT OPERATIONS SUMMARY: 2.1 Guide Star Acquisitions: Scheduled Acquisitions : 18 Successful : 18 Scheduled Reacquisitions : 27 Successful : 27 2.2 FHST Updates: Scheduled :43 Successful :43 2.3 Significant HSTARs: Safemode entry at 101/0559Z. SA Profile Test failed. HST entered software sunpoint safemode on day 101 at 05:59:00 GMT. This occurred after the DF224 computer detected a profile error during a solar array maneuver from 68 degrees to the 117 degree position. Preliminary data indicates that the - solar array wing overshot its desired position at the end of the slew by at least 14 degrees, enough to trigger the profile test. As a result of the safemode test failure, the DF224 turned off Solar Array Drive Electronics (SADE) 1, turned on SADE 2, and commanded +V3 software sunpoint mode. The solar arrays were then commanded to the 90 degree position by the DF224 under control of SADE 2, where they remain. No other problems have been detected and the HST is in a nominal software sunpoint configuration. Data analysis is underway, however all required data will not be available until late this morning due to ground station visibility for safemode tape recorder dumps. 2.4 Operations Notes: None 3.0 ACTIVITIES SCHEDULED FOR NEXT REPORTING PERIOD: 3.1 Complete Three Sets of FOS/RD 5535 (Cycle 4 Internal Wavelength Calibration) 3.2 Complete Three Sets of WF/PC-2 5561 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. 2 Flats) 3.3 Complete Two Sets of WF/PC-2 5475 (A Snapshot Survey for Blue Stragglers in Magellanic Cluster Cores) 3.4 Complete FGS 5135 (Extragalactic Astrometry and Astrophysics FT0-11, Part 1 of 2) 3.6 Complete WF/PC-2 5092 (GTO Low Latitude Parallel Program: Cycle 4) 3.7 Complete WF/PC-2 5402 (Multiple Arc Systems in X-Ray Selected Clusters: Cycle 4 Medium) 3.8 Complete WF/PC-2 5476 (Continuum Snapshots of 3CR Radio Galaxies) 3.9 Complete WF/PC-2 5612 (SMOV WF/PC-2 Decontamination ) 3.10 Complete WF/PC-2 5560 (WF/PC-2 Cycle 4 Calibration: Internal Monitor. 1) 4.0 ANOMALY STATUS: 4.1 Significant New Anomalies: None 4.2 Significant Unresolved Anomalies: None 5.0 SIGNIFICANT FORTHCOMING EVENTS: Recovery of the spacecraft from Safe Mode, and the resumption of normal operations. /DMH -END-