HUBBLE SPACE TELESCOPE DAILY REPORT # 3123 PERIOD COVERED: 0000Z (UTC) 05/22/02 - 0000Z (UTC) 05/23/02 OBSERVATIONS SCHEDULED AND ACCOMPLISHED: WF/PC-2 8059 POMS Test Proposal: Targeted Parallel Archive Proposal. was used to observe the parallel opportunities available 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. Narrow-band images in F656N can be used both to identify young stars via their emission lines, and to map the gas distribution in star-forming regions. NICMOS 8790 NICMOS Post-SAA calibration - CR Persistence Part 1. A new procedure proposed to alleviate the CR-persistence problem of NICMOS. Dark frames will be obtained immediately upon exiting the SAA contour 23, and every time a NICMOS exposure is scheduled within 50 minutes of coming out of the SAA. The darks will be obtained in parallel in all three NICMOS Cameras. The POST-SAA darks will be non-standard reference files available to users with a USEAFTER date/time mark. STIS/CCD 8902 Dark Monitor-Part 2. The Space Telescope Imaging Spectrograph (CCD) was used to monitor the darks. STIS/CCD 8904 Bias Monitor-Part 2. 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 in order to build up high-S/N superbiases and track the evolution of hot columns. WFPC2 8938 WFPC2 CYCLE 9 SUPPLEMENTAL DARKS pt3/3. characterizing the evolution of hot pixels. ACS/WFC/HRC 8947 Weekly Test. noise, the development of hot pixels and test for any source of noise in ACS CCD detectors. This program will be executed at least once a day for the entire lifetime of ACS. NICMOS 8982 NICMOS Plate Scale Measure the plate scale, field rotation and field distortion for each NICMOS camera. The intercamera astrometric solution will also be found NICMOS 8988 NICMOS Astronomical Persistence Test This proposal tests the persistence of the NICMOS cameras at the temperature established by the NCS. A series of saturated exposures followed by dark integrations are performed for each camera. The exposures have a duration to saturate the detectors by more than a factor of 100. To facilitate comparison with the previous SMOV results the same target, HD106965, is utilized. 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. WF/PC-2 9080 Transition from Non-radiative to Radiative Shocks in the Cygnus Loop. The WF/PC-2 was used to obtain narrow band HAlpha and O III imaging of faint filaments in the northeastern Cygnus Loop that represent the location of the primary shock front as it first encounters the ISM. 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. STIS/CCD 9110 A Search for Kuiper Belt Object Satellites. 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. STIS/CCD/MA1 9228 Ultraviolet Spectroscopy of R Coronae Borealis Stars -- Broad Lines from an Accretion Disc. The Space Telescope Imaging Spectrograph (CCD and MA1) was used to obtain spectra of three R Coronae Borealis {RCB} stars that will provide novel data on hot gas near these stars. NICMOS 9269 NICMOS Parallel Thermal Background NICMOS Camera 3 pure parallel exposures in the F222M filter will be obtained for the entire duration of SMOV to establish the stability of the HST+NCS+Instrument thermal emission. STIS/CCD 9317 Pure Parallel Imaging Program: Cycle 10. The Space Telescope Imaging Spectrograph (CCD) was used to perform the default archival pure parallel program for STIS during cycle 10. WF/PC-2 9318 POMS Test Proposal: WFII Parallel Archive Proposal Continuation. The WF/PC-2 was used to perform the generic target version of the WFPC2 Archival Pure Parallel program. The program was used to take parallel images of random areas of the sky, following the recommendations of the Parallels Working Group. WF/PC-2 9319 POMS Test Proposal: WFII Backup Parallel Archive Proposal II. The WF/PC-2 was used to execute a POMS test proposal, designed to simulate future scientific plans. ACS/HFC 9560 CCD Linearity Check. The Advanced Camera for Surveys (HFC) was used to obtain several exposures with both the to delineate linearity at both low and high signal levels. This is an exploratory set of observations aimed at basic instrument characterization. It is expected that positive results in some areas may serve to enable particularly demanding science observations: negative indications could lead to the need for corrections to be developed for some signal regimes. Each gain setting can have unique linearity issues, therefore exploratory observations with gains =1, 2, 4 e-/DN will be performed. Another specific goal is to obtain data that will allow accurate photometry to be extracted for point sources that saturate the detector. ACS/WFC/HRC 9566 CCD Hot Pixel Annealing. The Advanced Camera for Surveys (WFC and HRC) was used to perform hot pixel annealing that will be performed once per month. The CCD TECs will be turned off and heaters will be activated to bring the WFC detector temperature to about +10C. The HRC temperature will reach about 30C. This state will be held for approximately 24 hours, after which the heaters are turned off, the TECs turned on, and the CCDs returned to normal operating condition. ACS/WFC 9575 Default {Archival} Pure Parallel Program. The Advanced Camera for Surveys (WFC) was used to test ACS pure parallels in POMS. FLIGHT OPERATIONS SUMMARY: HSTARs: None COMPLETED OPS REQs: 16777-1 Battery 5 Capacity Test Script @143/1531z 16778-0 +E SPA Trim Management during Capacity Test @143/1519z OPS NOTES EXECUTED: 1007-0 Post Batt 5 Test Chg & Dischg Buffer Limits @144/0225z SCHEDULED SUCCESSFUL FAILURE TIMES FGS GSacq 7 7 FGS REacq 7 7 FHST Update 17 17 LOSS of LOCK None SIGNIFICANT EVENTS: Continuation of Servicing Mission Orbital Verification and the gradual resumption of normal science observations and calibrations.