HUBBLE SPACE TELESCOPE DAILY REPORT #2197 PERIOD COVERED: 0000Z (UTC) 08/27/98 - 0000Z (UTC) 08/28/98 Daily Status Report as of 240/0000Z 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed Three Sets of WF/PC-2 7712 (WF/PC-2 Cycle 7 Supplemental Darks pt2/3) The WF/PC-2 was used to make a series of Cycle 7 supplemental calibration darks. This dark calibration program obtains 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 7948 (CCD Dark and Bias Monitor -- Cont. to Dec. 98) The Space Telescope Imaging Spectrograph (CCD) was used to measure CCD dark current and bias rates for the two supported amplifier settings {GAIN=1 and GAIN=4} in order to gather data for making superdarks and superbiases. The data will be used to track the growth of hot pixels on the CCD in general and within the various target acquisition apertures specifically. The observations were executed as scheduled, and no anomalies were noted. 1.3 Completed Two Sets of WF/PC-2 7909 (POMS Test Proposal: WF II Parallel Archive Proposal) The WF/PC-2 was used to make parallel observations as part of the POMS test proposal. This test proposal is designed to simulate scientific plans. The observations were completed as planned, and no problems were reported. 1.4 Completed Five Sets of STIS/CCD 8062 (POMS Test Proposal: STIS Non-Scripted Parallel Proposal Continuation) The Space Telescope Imaging Spectrograph (CCD) was used to make high galactic latitude observations take in parallel with the prime science observations. The observations were completed as planned, and no problems were reported. 1.5 Completed NIC/2 7894 (Completing A Near-Infrared Search for Very Low Mass Companions to Stars within 10 pc) The Near Infrared Camera (Camera Two) was used to make observations searching for very low mass (VLM) companions to the star LHS122. This search will be the largest, most sensitive, volume-limited search for VLM companions ever undertaken. The observations were completed as planned, and no anomalies were reported. 1.6 Completed Two Set of NIC/1/2/3 7869 (The Morphology of Dense Gas in Seyferts , Obstruction and Fueling of AGNs) The Near Infrared Camera (Cameras One, Two and Three) was used to make observations of the Seyfert galaxies NGC-2110 and IC4329A to study the morphology of their dense gases. Near-Infrared color maps and images in H-2 emission will be used to trace hot and cold dense gas in this Seyfert galaxy. The observations were executed as scheduled, and no anomalies were noted. 1.7 Completed WF/PC-2 8061 (POMS Test Proposal: WF-II Backup Parallel Archive Proposal) This is a POMS test proposal designed to simulate scientific plans. The proposal was executed as planned, and no anomalies were reported. 1.8 Completed WF/PC-2 7622 (WF/PC-2 Cycle 7 Internal Monitor) The WF/PC-2 was used to make a set of Cycle 7 internal monitoring calibration measurements. A variety of internal exposures are obtained in order to provide a monitor of the integrity of the CCD camera electronics in both bays {gain 7 and gain 15}, a test for quantum efficiency in the CCDs, and a monitor for possible buildup of contaminants on the CCD windows. A bias calibration and an internal flat calibration image were also taken. The observations were executed as scheduled, and no anomalies were noted. 1.9 Completed NIC/1/2/3 7898 (Snapshot Survey of Proto-planetary Nebulae) The Near Infrared Camera (Cameras One, Two and Three) was used to make snapshot survey observations of the protoplanetary nebula IRC+10011. This is to help discern the structure of the nebulae and the evolutionary sequence that produces axially symmetric planetary nebulae. The observations were executed as scheduled, and no anomalies were noted. 1.10 Completed WF/PC-2 6837 (The Ultraviolet Properties of "Dwarf" Seyfert 1 Nuclei) The WF/PC-2 was used to make ultraviolet observations of the "dwarf", type one, Seyfert galaxy NGC-2787. This class of "dwarf" Seyfert populate the faint end of the local AGN luminosity function and hold important clues to the evolution of the entire AGN population. The observations were completed as scheduled, and no problems were reported. 1.11 Completed NIC/2/3 7907 (NICMOS Pure Parallel Winter 97-98) The Near Infrared Camera (Cameras Two and Three) was used to make pure parallel spectrographic observations of sky regions when another instrument is prime. The observations were completed as planned, and no anomalies were reported. 1.12 Completed NIC/1/2/3 7886 (NICMOS Snap Shot Survey of Early-Type Galaxies) The Near Infrared Camera (Cameras One, Two and Three) was used to make observations of the early-type galaxy ESO0507-G04 as part of a snap-shot broad-band imaging survey. Since almost all early-type galaxies harbor dust, these images which are less sensitive to extinction and will provide superior light profiles for dynamical studies of the cores of these galaxies. The observations were completed as scheduled, and no problems were reported. 1.13 Completed NIC/1 7867 (NICMOS Imaging of the Dusty CfA Seyfert Nuclei) FGS 7968 () The Near Infrared Camera (Camera One) was used to make imaging observations of the dusty CfA class Seyfert galaxy MRK673. These data will allow us to determine if the Seyfert 1/2 dichotomy is best explained by the unified model, the evolutionary picture, or a combination of both of these scenarios. The observations were executed as scheduled, and no anomalies were noted. 1.14 Completed NIC/1/2 7897 (Probing Planetary Formation Around Main-Sequence Stars: A Snapshot Survey) The Near Infrared Camera (Camera One and Two) was used to make snapshort survey images of the main sequence star HR6849 probing for planetary formation. The IR excess main-sequence stars host cool circumstellar dust disks, which are most likely replenished by the debris of unseen planetesimals. The observations were completed as scheduled, and no problems were noted. 1.15 Completed NIC/1/2/3 7899 (An IR Search For faint Companions to Pleiades Very Low-Mass Stars and Brown Dwarfs) The Near Infrared Camera (Cameras One, Two and Three) was used to make observations of ROQUE-4. This is part of a infrared campaign to search for faint companions to Pleiades very low-mass stars and brown dwarfs. The Pleiades has been the best site for brown dwarf {BD} searches, with half of the presently "confirmed" BDs being Pleiades members. The observations were executed as scheduled, and no anomalies were noted. 1.16 Completed STIS/CCD/MA1/MA2/NIC/1/2/3 7584 (STIS Observations of Extragalactic Star Forming Regions) The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was used to make observations of the extragalactic star forming regions of galaxy NGC-604. The observations were executed as scheduled, and no anomalies were noted. 1.17 Completed WF/PC-2 8059 (POMS Test Proposal: WF-2 Targeted Parallel Archive Proposal) The WF/PC-2 was used to make observations in parallel with the prime science observations. The parallel opportunities available with WF/PC-2 in the neighborhood of bright galaxies are treated in a slightly different way from the normal pure parallels. Local group galaxies offer the opportunity for a closer look at young stellar populations. The observations were completed as planned, and no anomalies were reported. 1.18 Completed STIS/CCD/MA1 7583 (Spatial & Temporal Variations in the UV Emission from the Atmosphere of Io) The Space Telescope Imaging Spectrograph (CCD and MA1) was used to look for spatial and temporal variations in the ultraviolet emissions from the atmosphere of Jupiter's moon Io. Measurements of the spatial distribution of Io's hydrogen, sulfur and oxygen far-ultraviolet emissions were obtained using STIS spectroscopic and imaging modes. A wavelength calibration image was also taken. The observations were executed as scheduled, and no anomalies were noted. 1.19 Completed NIC/1 7833 (Multiplicity Survey of Alpha Persei: Studying the Evolution and Effects of Companions) The Near Infrared Camera (Camera One) was used to make observations of the star Alpha-Persei. Extensive observations have established that binaries are twice as common amongst pre-main sequence stars than older solar neighborhood G-dwarfs. The observations were executed as scheduled, and no anomalies were noted. 1.20 Completed WF/PC-2 6826 (The Galactic Wind in M-82: Structure and Excitation of the Optical Filaments) The WF/PC-2 was used to make narrow-band image observations of galaxy NGC-3034 (aka, M-82) in order to study its structure and the excitation of its optical filaments, and the nature of emission lines of H-Alpha, [N II] 6583 A0, [O I] 6300 A0, and [O III] 5007 A0. The observations were executed as scheduled, and no anomalies were reported. 2.0 FLIGHT OPERATIONS SUMMARY: 2.1 Guide Star Acquisitions: Scheduled Acquisitions : 12 Successful : 12 Scheduled Reacquisitions : 6 Successful : 6 2.2 FHST Updates: Scheduled : 22 Successful : 22 2.3 Operations Notes: Using ROP SR-1, the SSR EDAC error counter was cleared twice. PASSOPS experienced problems with the PSP system disk yesterday. The offline ASP is currently being used for PASSOPS processing while the Systems Managers work to correct the PSP problem. While PASSOPS is on the ASP no subset transmissions to OPUS can be performed. As documented in HSTAR 6639, the STIS MCE-1 reset at 239/213648Z outside an SAA interval but while the high voltage was on. STIS had completed its observations at the time of the reset so no images were lost. ROP SR-12 was executed at 239/2218Z to reset the STIS flight software error counter. The MAMA-1 will be recovered at the time of the next high voltage on which will be commanded via the SMS at 242/1523Z. 3.0 SIGNIFICANT FORTHCOMING EVENTS: Continuation of normal science observations and calibrations. /DMH