HUBBLE SPACE TELESCOPE DAILY REPORT     # 4288 PERIOD COVERED:  UT  January  29, 2007 (DOY 029) NO OBSERVATIONS SCHEDULED FLIGHT OPERATIONS SUMMARY: Significant Spacecraft Anomalies: (The following are preliminary reports of potential non-nominal performance that will be investigated.) HSTARS: (None) COMPLETED OPS REQUEST: 18006-0 - Dump 8051 Min/Max & History Buffer 18002-2 - Enable Circulator 18003-2 - Enable Circulator 18004-1 - Compressor Ramp & Transition to PID ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4286 PERIOD COVERED: UT January 25, 2007 (DOY 025) OBSERVATIONS SCHEDULED ACS/SBC 10862 Comprehensive Auroral Imaging of Jupiter and Saturn during the International Heliophysical Year A comprehensive set of observations of the auroral emissions from Jupiter and Saturn is proposed for the International Heliophysical Year in 2007, a unique period of especially concentrated measurements of space physics phenomena throughout the ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4285 PERIOD COVERED: UT January 24, 2007 (DOY 024) OBSERVATIONS SCHEDULED ACS/HRC 11041 ACS CCDs daily monitor This program consists of a set of basic tests to monitor, the read noise, the development of hot pixels and test for any source of noise in ACS CCD detectors. The files, biases and dark will be used to create reference files for science calibration. This programme will be for the entire lifetime of ACS. For cycle 15 ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT    # 4284 PERIOD COVERED: UT January 23, 2007 (DOY 023) OBSERVATIONS SCHEDULED ACS/HRC 10878 An ACS Prism Snapshot Survey for z~2 Lyman Limit Systems We propose to conduct a spectroscopic survey of Lyman limit absorbers at redshifts 1.7 < z < 2.2, using ACS/HRC and the PR200L prism. We have selected 100 quasars at 2.3 < z < 2.6 from the Sloan Digital Sky Survey Spectroscopic Quasar sample, for which no BAL signatu ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4283 PERIOD COVERED: UT January 22, 2007 (DOY 022) OBSERVATIONS SCHEDULED ACS/HRC 11041 ACS CCDs daily monitor This program consists of a set of basic tests to monitor, the read noise, the development of hot pixels and test for any source of noise in ACS CCD detectors. The files, biases and dark will be used to create reference files for science calibration. This programme will be for the entire lifetime of ACS. For cycle 15 ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4282 PERIOD COVERED: UT January 19,20,21, 2007 (DOY 019,020,021) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 8794 NICMOS Post-SAA calibration - CR Persistence Part 5 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 ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4281 PERIOD COVERED: UT January 18, 2007 (DOY 018) OBSERVATIONS SCHEDULED ACS/HRC/WFPC2/NIC3 10842 A Cepheid Distance to the Coma Cluster We propose to use the Advanced Camera for Surveys to search for Cepheid variables in two spiral galaxies in the core of the Coma cluster. A direct application of the canonical primary distance indicator at 100 Mpc will measure the far-field Hubble constant free of many of the systematic unc ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4280 PERIOD COVERED: UT January 17, 2007 (DOY 017) OBSERVATIONS SCHEDULED ACS/HRC 10833 Host Galaxies of Reverberation Mapped AGNs We propose to obtain unsaturated high-resolution images of 17 reverberation-mapped active galactic nuclei in order to remove the point-like nuclear light from each image, thus yielding a "nucleus-free" image of the host galaxy. This will allow investigation of host galaxy properties: our ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4279 PERIOD COVERED: UT January 16, 2007 (DOY 016) OBSERVATIONS SCHEDULED ACS/HRC 11054 Photometric and Spectrophotometric Absolute Calibration Verify repeatability of the ACS instrumentation on a single bright star to ?0.2%. Determine any shift in the filter bandpasses since the preflight lab measurements. Determine the relative magnitude of the 3 primary WD calibrators to 0.1%. Refine the sensitivity calibration of the CCD ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT        # 4278 PERIOD COVERED: UT January 12,13,14,15, 2007 (DOY 012,013,014,015) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 8794 NICMOS Post-SAA calibration - CR Persistence Part 5 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 ...Continue Reading