HUBBLE SPACE TELESCOPE DAILY REPORT #2996 PERIOD COVERED: 0000Z (UTC) 11/09/01 - 0000Z (UTC) 11/13/01 Daily Status Report as of 317/0000Z 1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED: 1.1 Completed STIS/CCD 8914 (Sensitivity Monitor C10) The Space Telescope Imaging Spectrograph (CCD) was used to monitor the sensitivity of each CCD grating mode to detect any change due to contamination or other causes. The STIS focus is also monitored in an imaging mode. There was no anomalous activity. 1.2 Completed Ten Sets of WF/PC-2 8936 (Cycle 10 Supplemental Darks Pt1/3) The WF/PC-2 was used to perform a dark calibration program that obtains three dark frames every day to provide data for monitoring and characterizing the evolution of hot pixels. The proposal completed with no reported problems. 1.3 Completed Eight Sets of WF/PC-2 9042 (An Archive To Detect The Progenitors Of Massive, Core-Collapse Supernovae) The WF/PC-2 was used to search for supernovae which have massive star progenitors. The already extensive HST archive and high-resolution ground-based images of galaxies within ~20 Mpc enables us to resolve and quantify their individual bright stellar content. As massive, evolved stars are the most luminous single objects in a galaxy, the progenitors of core-collapse supernovae should be directly detectable on pre-explosion images. One Type II progenitor has been observed this year, and the investigators have proposed a short, companion WFPC2 proposal to confirm this candidate and identify a second. The observations completed nominally. 1.4 Completed Twenty Sets of WF/PC-2/STIS/CCD 9285 (POMS Test Proposal: STIS Non-scripted Parallel Proposal Continuation III) The WF/PC-2 and the Space Telescope Imaging Spectrograph (CCD) were used to make low galactic latitude, non-scripted parallel observations as part of a POMS test proposal. As described in 2.1 and HSTAR 8394, the acquisition for the tenth and eleventh iterations of this proposal defaulted to fine lock backup on one FGS only, possibly affecting the observations in these iterations. Then, as detailed in 2.1 and HSTAR 8395, the acquisition for the thirteenth iteration of this proposal also defaulted to fine lock backup on one FGS only, possibly affecting the observations in this iteration. Otherwise, the observations were completed as planned, and no other anomalies were reported. 1.5 Completed Four Sets of STIS/CCD 8903 (Bias Monitor - Part 1) The Space Telescope Imaging Spectrograph (CCD) was used to monitor the bias in the 1x1, 1x2, 2x1, and 2x2 bin settings at gain=1, and 1x1 at gain = 4 to build up high-S/N superbiases and track the evolution of hot columns. There were no problems. 1.6 Completed FGS/1 9072 (Dynamical Masses of White Dwarfs from Resolved Sirius-Like Binaries) Fine Guidance Sensor #1 was used to observe resolved "Sirius-like'' systems containing hot white-dwarf companions of cooler main-sequence stars. It is proposed to image them annually in the UV. No anomalous activity was reported. 1.7 Completed Eighteen Sets of WF/PC-2 9244 (POMS Test Proposal: WFII Parallel Archive Proposal Continuation) The WF/PC-2 was used to perform a generic target version of the Archival Pure Parallel program. The program will be used to take parallel images of random areas of the sky, following the recommendations of the Parallels Working Group. As described in 2.1 and HSTAR 8394, the acquisition for the eighth iteration of this proposal defaulted to fine lock backup on one FGS only, possibly affecting the observations in this iteration. Then, as detailed in 2.1 and HSTAR 8395, the acquisition for the tenth iteration of this proposal also defaulted to fine lock backup on one FGS only, possibly affecting the observations in this iteration. Otherwise, the observations completed with no further anomalous activity. 1.8 Completed Seven Sets of STIS/CCD 8901 (Dark Monitor-Part 1) The Space Telescope Imaging Spectrograph (CCD) was used to monitor the darks. There was no anomalous activity. 1.9 Completed Three Sets of FGS/1 9034 (The Masses and Luminosities of Population II Stars) Fine Guidance Sensor #1 was used to observe the mass-luminosity relation {MLR} of Population II stars of which very little is currently known. With the advent of the Hipparcos Catalogue, improved distances to many spectroscopic binaries known to be Pop II systems are now available. After surveying the literature and making reasonable estimates of the secondary masses, we find 13 systems whose minimum separation should be larger than the resolution limit of FGS #1. The observations completed nominally. 1.10 Completed Two Sets of STIS/CCD 9110 (A Search for Kuiper Belt Object Satellites) The Space Telescope Imaging Spectrograph (CCD) was used to investigate whether the large number of collisions thought to have taken place in the primordial Kuiper belt suggest that many Kuiper belt objects {KBOs} could have suffered binary-forming collisions similar to that which formed the Pluto -- Charon binary. Detection of such KBO satellites would allow measurement of KBO masses, would help to understand the past collisional environment of the Kuiper belt, and would give a context to the otherwise unique-seeming formation of the Pluto -- Charon binary. The proposal completed with no reported problems. 1.11 Completed STIS/CCD/MA2 9040 (Baryons In Intermediate Redshift {Z > 1} OVI Absorbers) The Space Telescope Imaging Spectrograph (CCD and MA2) was used to search for intervening OVI absorption systems in two further extremely UV bright intermediate redshift QSOs {HS 0747 + 4259, z = 1.9, V = 15.6; HS 0818+2554, z = 1.5, V = 15.4} using the STIS E230M Echelle mode. The scientific aim is to measure the baryonic fraction in the warm-hot intergalactic medium at redshifts 1 <=q z <=q 1.8. Present existing data on HE 0515-4414 taken also with STIS E230M seem to indicate that the baryonic fraction at z = 1.5 is lower by a factor of ~ 15 than the high value found by Tripp et al. {2000} for z < 0.3. Our results need to be confirmed by more lines of sight, and we plan to test hierarchical structure formation models which predict a rapid evolution between z = 1.5 and z = 0. The observations completed as planned with no reported anomalous activity. 1.12 Completed FGS/1 9089 (Parallaxes of Cataclysmic Variables: Understanding Their Peculiar Secondary Stars) Fine Guidance Sensor #1 was used to measure precise parallaxes for three additional CVs {WZ Sge, RU Peg, and YZ Cnc}, whose orbital periods span a much larger range than explored in previous observations, allowing examination of how the accretion luminosity and secondary star change with orbital period. There were no problems. 1.13 Completed Two Sets of FGS/1 9168 (The Distances to AM CVn Stars) Fine Guidance Sensor #1 was used to determine the parallaxes and proper motions of the five brightest of the seven known AM CVn systems. AM CVn systems are binaries where mass is transferred from a completely hydrogen-deficient, degenerate mass donor to a white dwarf primary through a helium accretion disk. A better understanding of these systems is crucial for a number of reasons: (1) to study the late stages of binary evolution, (2) to study the effect of chemical composition on the physics of accretion discs, (3) to estimate their contribution to the Supernovae Ia rate, and (4) to estimate their contribution to the gravitational radiation background. All observations completed with no reported problems. 1.14 Completed Three Sets of STIS/CCD 9136 (T Tauri Star Coronagraphic Survey: A PMS Protoplanetary Disk Census) The Space Telescope Imaging Spectrograph (CCD) was used to observe pre-main sequence solar-mass stars, the T Tauri stars that Millimeter and IR studies suggest at least 50 percent have circumstellar disks similar to the disk from which our planetary system formed. High spatial resolution, high dynamic range imaging of such systems will map the spatial distribution of material around the star, constraining the disk sizes and inclinations, and provide a first assessment of when structure in the disk, such as cleared central zones and annuli, which has been linked to planet formation, develops. All observations completed without incident. 1.15 Completed Two Sets of STIS/CCD 8929 (First-order LSFs for Pseudo-Aperture Locations) The Space Telescope Imaging Spectrograph (CCD) was used to measure the LSFs for the CCD spectroscopic modes at the new pseudo-aperture locations. The proposal completed as planned. 1.16 Completed Two Sets of FGS/1 9171 (High Speed Photometry of the Transiting Planet HD 209458b) Fine Guidance Sensor #1 was used to observe HD 209458b, the only extrasolar giant planet {EGP} detected that has an orbit inclined enough toward the Sun for the transits to be detected. Differential photometry with respect to comparison stars showed a transit depth of 1.5 a transit time of 3.2 hours. Transit ingress and egress are ~25 minutes in duration suggesting the planet transits along a short chord instead of the full stellar disk. It is proposed to observe the transit ingress {1-orbit} and egress {1-orbit} with a FGS used as a high- speed photometer. As described in 2.1 and HSTAR 8394, the acquisition for the first iteration of this proposal defaulted to fine lock backup on one FGS only, possibly affecting the observations in this iteration. Then, as detailed in 2.1 and HSTAR 8395, the acquisition for the second iteration of this proposal also defaulted to fine lock backup on one FGS only, possibly affecting the observations in this iteration. Otherwise, the proposal completed with no other reported problems. 1.17 Completed FGS/1 8898 (Calibrating FGS1r's Interferometric Response as a Function of Spectral Color) Fine Guidance Sensor #1 was used to obtain reference point source Transfer Functions {S-Curves} through the F583W filter and the F5ND attenuator at the center position of the FGS1r FOV for a variety of stellar spectral colors. The data will be added to the library of point source interferograms that was assembled from the Cycles 8 and 9 calibration program. These Transfer Functions are needed to support the analysis of GO science data for the study of close and wide binary star systems and for determining the angular diameter of extended sources. The proposal completed with no reported problems. 1.18 Completed STIS/CCD/MA1 9304 (Ultraviolet Spectroscopy of the Unexpected Outburst of WZ Sagittae) The Space Telescope Imaging Spectrograph (CCD and MA1) was used to observe the extreme dwarf nova WZ Sge that unexpectedly went into outburst on July 23, 2001, ten years earlier than anticipated. This event offers the chance to obtain high-quality, time-resolved far-UV spectra, as the outburst continues through its peak into decline. The observations completed with no reported problems. 1.19 Completed STIS/CCD/MA1/MA2 8919 (MAMA Sensitivity and Focus Monitor C10) The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was used to monitor the sensitivity of each MAMA grating mode to detect any change due to contamination or other causes, and also to monitor the STIS focus in a spectroscopic and an imaging mode. All observations were successful. 1.20 Completed WF/PC-2 8626 (Spatially Resolved Spectroscopy of APM08279+5255) The WF/PC-2 was used to obtain spatially resolved, high resolution spectra of the z=3.911 BAL quasar, APM 08279+5255. All observations completed nominally 1.21 Completed WF/PC-2 9046 (Black Holes and Bars: A Recipe for Making Bulges?) The WF/PC-2 was used to obtain multi-color images and (eventually) STIS emission line spectroscopy of the nuclear regions of 6 edge-on barred spiral galaxies spanning a range of bulge morphologies and bar strengths. The goal is to quantify the amount of vertical heating in the nuclei, and to test whether or not bars are indeed destroyed and create a bulge if enough mass is accumulated in their centers. There were no reported problems 1.22 Completed Four Sets of STIS/CCD 9066 (Closing in on the Hydrogen Reionization Edge of the Universe) The Space Telescope Imaging Spectrograph (CCD) was used in parallel constrain the Hydrogen reionization edge in emission that marks the transition from a neutral to a fully ionized IGM at a predicted redshifts. The proposal completed uneventfully. 1.23 Completed WF/PC-2 9045 (The Relationship Between Radio Luminosity and Radio-Loud AGN Host Galaxy Properties) The WF/PC-2 was used to determine the relationship between the properties of the host galaxies of radio-loud AGN and their radio luminosities. Previous studies in this area with the HST have concentrated on the 3C sample which shows a tight correlation between luminosity and redshift, such that evolutionary effects cannot be distinguished from those depending upon radio luminosity. Our sample of 46 radio galaxies at z ~ 0.5 comes from four complete, low-frequency-selected samples of radio sources with differing flux limits. Thus the total sample spans an unprecedented three orders of magnitude in radio luminosity at a fixed redshift interval. The proposal completed with no reported problems. 1.24 Completed Six Sets of WF/PC-2 8935 (Cycle 10 Standard Darks) The WF/PC-2 was used to obtain dark frames every week in order to provide data for the ongoing calibration of the CCD dark current rate, and to monitor and characterize the evolution of hot pixels. Over an extended period these data will also provide a monitor of radiation damage to the CCDs. The proposal completed with no reported problems. 1.25 Completed Two Sets of STIS/CCD 8910 (Sparse Field CTE Test-Internal {Cycle 10}) The Space Telescope Imaging Spectrograph (CCD) was used to perform CTE measurements that are made using the "sparse field test", along both the serial and parallel axes. This program needs special commanding to provide {a} off-center MSM positionings of some slits, and {b} the ability to read out with any amplifier {A, B, C, or D}. No problems were encountered. 1.26 Completed STIS/CCD 8291 (The Alpha-Element/Iron Ratio in Starburst Populations) The Space Telescope Imaging Spectrograph (CCD) was used to observe A and F supergiants in NGC1569, the closest starburst galaxy. Spectra around 6200 Angstrom taken with the G750M grating will be used to determine element abundances of Fe and several Alpha-elements. The galaxy has experienced a strong starburst over the past few hundred Myr and possibly only very few and much less intense episodes of star formation at earlier epochs. Chemical evolution models predict a significant Alpha/Fe enhancement in the galaxy. The proposal completed with no reported anomalies. 1.27 Completed WF/PC-2 8939 (Cycle 10 Internal Monitor) The WF/PC-2 was used to calibrate the internal monitor, to be run weekly to monitor the health of the cameras. No problems were encountered 1.28 Completed STIS/CCD 8611 (Observations of Nearby Type Ia Supernovae) The Space Telescope Imaging Spectrograph (CCD) was used to obtain UV spectra of five nearby {0.02 < z < 0.08} SNe Ia in the Hubble Flow. The spectra will be taken at weekly intervals over a range in time starting slightly before maximum light and extending to +30 days. These observations will accomplish the following three goals: {1} calibration of the rest frame UV light curves of SNe Ia and an assessment of their potential use as distance indicators through UV light curve shape analyses. {2} improvement in our understanding of the physics of SNe Ia, metallicity/evolutionary effects and correlations between peak brightness and UV spectral features. {3} calibration of the SNe Ia previously observed by HST at high-redshift. This data is crucial for proper cross-filter k-corrections and calibration of the supernova photometry. The observations completed with no reported anomalous activity. 2.0 FLIGHT OPERATIONS SUMMARY: 2.1 Guide Star Acquisitions: Scheduled Acquisitions: 35 Successful: 35 HSTAR 8394 documents a guide star acquisition at 314/064753Z which defaulted to fine lock backup on FGS-3 only when the scan step limit was exceeded on FGS-2. The proposals described in 1.4, 1.7, and 1.16 may have been affected. HSTAR 8395 details a guide star acquisition at 314/100319Z that defaulted to fine lock backup on FGS-2 only when the scan step limit was exceeded on FGS-3. The proposals described in 1.4, 1.7, and 1.16 may have been affected. Scheduled Re-acquisitions: 19 Successful: 19 2.2 FHST Updates: Scheduled: 83 Successful: 83 2.3 Operations Notes: Using ROP SR-1A, the SSR EDAC error counter was cleared five times. As directed by ROP RD-7A, ESTR #2 was reconditioned at 314/1938Z. Per HSTAR 8396, the RWA 1 momentum error counter (SSFRWME1) flagged out-of-limits for two telemetry samples at 314/203532Z. During this anomalous event, the vehicle was not slewing and was not in an SAA interval. The HST remained in normal mode since it takes at least three counts for the RWA momentum management test to exceed 2.2 Nms for autonomous entry into software sunpoint. The RWA 1 monitor error counter was cleared at 314/2324Z per an operations request. The Bay 6 Aft ES Bulkhead temperature (TB6AESB) flagged out-of-limits high for the interval 314/2142Z - 314/2205Z with a value of 20.91 degC (limit is 20.0 degC). The HST was in orbit day and also in a period of high Sun time. HSTAR 8397 was written. SSA transmitter was powered on and off for the interval 314/2225Z - 314/2236Z per ROP IC-2. The ephemeris table was uplinked at 317/0032Z using ROP DF-07A. A TTR was generated when there was a required re-transmit during a 486 load at 317/0911Z. Accordingly, the engineering status buffer limits were adjusted at 317/0911Z per ROP DF-18A. 3.0 SIGNIFICANT FORTHCOMING EVENTS: Continuation of normal science observations and calibrations. /CAW