From owner-hst-status@stsci.edu Thu Apr 2 07:19:59 1998 X-Sender: cwolf@mail.hst.nasa.gov To: george.albright@hq.nasa.gov, sadams@estif2.gsfc.nasa.gov, barnbaum@stsci.edu, preston.m.burch.1@gsfc.nasa.gov, jconwell@ems.jsc.nasa.gov, john.h.campbell.1@gsfc.nasa.gov, bcooke@sssp.hst.nasa.gov, carpenter@tma1.gsfc.nasa.gov, aferro@as.arizona.edu, jeffrey.m.hanley1@jsc.nasa.gov, hst-status@stsci.edu, chenning@pop500.gsfc.nasa.gov, gsfc.hst.general@newsfeed.gsfc.nasa.gov, j.keith.kalinowski.1@gsfc.nasa.gov, ken.ledbetter@hq.nasa.gov, j_lesko@swales.com, jlegg@stx.com, jleibee@hst.nasa.gov, dleckrone@hst.nasa.gov, ann.c.merwarth.1@gsfc.nasa.gov, jmccullo@ems.jsc.nasa.gov, gmorrow@hst.nasa.gov, mgw@resource-intl.com, mnolan@pop100.gsfc.nasa.gov, Jan.Owings@gsfc.nasa.gov, kpulkkinen@v2pop.hst.nasa.gov, gilbert.roth@hq.nasa.gov, rrasche@as.arizona.edu, arankin@pop400.gsfc.nasa.gov, steven.l.smith1@jsc.nasa.gov, stdesk@eso.org, rthompson@as.arizona.edu, edward.weiler@hq.nasa.gov, vweyers@pop400.gsfc.nasa.gov, howard.j.wood.1@gsfc.nasa.gov Subject: Daily Report #2093 04/02/98 HUBBLE SPACE TELESCOPE DAILY REPORT #2093 PERIOD COVERED: 0000Z (UTC) 04/01/98 - 0000Z (UTC) 04/02/98 Daily Status Report as of 092/0000Z 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed STIS/CCD 7803 (Daily Darks to Update Acquisition Bad Pixel Table Part III) The Space Telescope Imaging Spectrograph (CCD) was used to make daily dark calibration updates. These daily darks are intended to identify hot pixels for update to the acquisition on-board FSW hot pixel table. Daily hot pixel lists can also be used for science data analysis. The observations were completed as planned, and no anomalies were reported. 1.2 Completed STIS/CCD 7926 (CCD Dark and Bias Monitor -- Continued) The Space Telescope Imaging Spectrograph (CCD) was used to make several dark and bias calibration observations. This is 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. These observations will also 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 Five Sets of NIC/1/2 7458 (IR Surface Brightness Fluctuations of Fornax Cluster Galaxies) The Near Infrared Camera (Cameras One and Two) was used to make surface brightness observations of galaxies NGC-1386, NGC-1381, NGC-1344, NGC-1339 and NGC-1316 which are located in the nearby Fornax Galactic Cluster. This work is important because NICMOS offers the potential for accurate IR SBF distances as far as ~15,000 km/s, but the current calibration is inadequate since it is based only on M31 and is only at K-band. As described in HSTAR 6418 and reported in yesterday's report, during the third iteration of this proposal, at 091/0609Z, a guide star acquisition failed and the take data flag remained down. Otherwise, the observations were executed as scheduled, and no further anomalies were noted. 1.4 Completed Four Sets of STIS/CCD 7908 (POMS Test Proposal: STIS Non-Scripted Parallel Proposal) The Space Telescope Imaging Spectrograph (CCD) was used to make calibration observations as part of the POMS Test Proposal. This was a STIS non-scripted parallel proposal. As described in HSTAR 6418 and reported in yesterday's report, during the third iteration of this proposal, at 091/0609Z, a guide star acquisition failed and the take data flag remained down. Otherwise, the observations were completed as planned, and no further problems were reported. 1.5 Completed Two 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. 1.6 Completed STIS/CCD 7912 (STIS Parallel Archive Proposal - Nearby Galaxies - Imaging and Spectroscopy) The Space Telescope Imaging Spectrograph (CCD) was used to make parallel observations of nearby galaxies. This survey will be useful to study the star formation histories, chemical evolution, and distances to these galaxies. These data will be placed immediately into the Hubble Data Archive. The observations were completed as scheduled, and no problems were reported. 1.7 Completed WF/PC-2 7619 (WF/PC-2 Cycle 7 Decontamination) The WF/PC-2 was used to conduct a Cycle 7 decontamination procedure. Ultraviolet-blocking contaminants were removed, and hot pixels cured, by warming the CCDs to +20C for 6 hours. A variety of internal images were taken before and after the decontamination in order to verify its success and to monitor the instrument health. The procedures were conducted as scheduled, and no problems were reported. 1.8 Completed FGS 7678 (Monitor the Long-Term Stability of FGS-1R) The goal of these measurements is to monitor the internal positional stability of the FGSs by measuring many stars in the M35 check field repeatedly over a one year period. The results of these measurements are the stability characteristics of the FGS to allow an estimate of differential corrections to OFAD and Plate Scale. The observations were completed as planned, and no problems were reported. 1.9 Completed Thgree Sets of 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. 1.10 Completed STIS/CCD 7911 (STIS Galactic Plane Pure Parallel Program) The Space Telescope Imaging Spectrograph (CCD) was used to make low galactic latitude survey observations in parallel with the prime science observations. Short exposures with the 50CCD imaging mode will provide the wavelength zero-point calibration. These data will be placed immediately into the Hubble Data Archive. The observations were executed as scheduled, and no anomalies were noted. 1.11 Completed STIS/CCD 7672 (STIS CCD Sensitivity Monitor) The Space Telescope Imaging Spectrograph (CCD) was used to make observations of standard star AGK+81D266 in order to monitor the sensitivity of each CCD grating mode to detect any change due to contamination or other causes. The observations were completed as scheduled, and no anomalies were noted. 1.12 Completed 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 galaxy NGC-3227 to study the morphology of its dense gas. 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. 1.13 Completed STIS/CCD/MA2 7347 (Direct Imaging of Betelgeuse) The Space Telescope Imaging Spectrograph (CCD and MA2) was used to make observations of the super giant star Betelgeuse (a.k.a., BD+75D325 or Alpha Orionis). Our UV images of Alpha Orionis obtained with the FOC in 1995 {Cycle 5} are the first direct images of the surface of a star other than the Sun. The observations were completed as planned, and no anomalies were reported. 1.14 Completed NIC/2 7330 (The Fueling of Active Nucleii: A NICMOS Snapshot Survey) The Near Infrared Camera (Camera Two) was used to probe the dark matter distribution of NGC-5054 far from the center by observing intervening absorption from the MgII doublet (lambda 2800) in the spectrum of one background QSO located in a geometrically optimal position. HST observations are required because this feature is in a wavelength range not accessible from the ground, and the QSO magnitudes and expected strength of absorption make IUE observations unfeasible. The proposal completed as expected with no anomalies. 1.15 Completed STIS/CCD/MA2 7393 (Black Hole A0620-00 and Advection-Dominated Accretion) The Space Telescope Imaging Spectrograph (CCD and MA2) was used to make observations of soft X-ray transient V822-Cen. These data might provide the most clear-cut evidence presently available for the existence of black holes. A wavelength calibration image was also taken. The observations were executed as scheduled, and no anomalies were noted. 1.16 Completed 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. 1.17 Completed NIC/2 7227 (A Search for Low Mass/Sub-Luminous Companions to M-Stars) The Near Infrared Camera (Camera Two) was used to make a search for low mass/sub-luminous companions to low mass M class star LHS2320. Knowledge of stellar and sub-stellar masses and luminosities at and below the ~0.08 M{sun} H-burning limit is of fundamental importance. A dark calibration image was also taken. The observations were completed as planned, and no problems were reported. 1.18 Completed NIC/1/2/3 7896 (A NIR Snapshot Survey of Ultraluminous IR Galaxies) The Near Infrared Camera (Cameras One, Two and Three) was used to make snapshot survey observations of the ultraluminous infrared galaxy QDOTULIR07. Nearly all of these galaxies show evidence for a recent tidal interaction, and we will search for evidence of the merger progenitors near the center of each galaxy, a task made significantly easier with NIR imaging. The observations were completed as planned, and no anomalies were noted. 2.0 FLIGHT OPERATIONS SUMMARY: 2.1 Guide Star Acquisitions: Scheduled Acquisitions : 12 Successful : 12 Scheduled Reacquisitions : 7 Successful : 7 2.2 FHST Updates: Scheduled : 24 Successful : 24 2.3 Operations Notes: The SSR correctable EDAC counts were cleared using ROP SR-1. 3.0 SIGNIFICANT FORTHCOMING EVENTS: Continuation of normal science observations and calibrations. /DMH