HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4159 PERIOD COVERED: UT July 19, 2006 (DOY 200) OBSERVATIONS SCHEDULED ACS/HRC 10512 Search for Binaries Among Faint Jupiter Trojan Asteroids We propose an ambitious SNAPSHOT program to survey faint Jupiter Trojan asteroids for binary companions. We target 150 objects, with the expectation of acquiring data on about 50%. These objects span Vmag = 17.5-19.5, a range inaccessible with ground-based adaptive optics. We now have a signifi ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4158 PERIOD COVERED: UT July 18, 2006 (DOY 199) OBSERVATIONS SCHEDULED ACS/HRC 10598 ACS Imaging of Fomalhaut: A Rosetta Stone for Debris Disks Sculpted by Planets The Sun and roughly 15% of stars are surrounded by dust disks collisionally replenished by asteroids and comets. Disk structure can be directly tied to the dynamical influence of more massive bodies such as planets. For example, planetary perturbations offset the center of ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4153 PERIOD COVERED: UT July 11, 2006 (DOY 192) OBSERVATIONS SCHEDULED ACS/HRC 10512 Search for Binaries Among Faint Jupiter Trojan Asteroids We propose an ambitious SNAPSHOT program to survey faint Jupiter Trojan asteroids for binary companions. We target 150 objects, with the expectation of acquiring data on about 50%. These objects span Vmag = 17.5-19.5, a range inaccessible with ground-based adaptive optics. We now have a signifi ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4152 PERIOD COVERED: UT July 10, 2006 (DOY 191) OBSERVATIONS SCHEDULED ACS/HRC 10512 Search for Binaries Among Faint Jupiter Trojan Asteroids We propose an ambitious SNAPSHOT program to survey faint Jupiter Trojan asteroids for binary companions. We target 150 objects, with the expectation of acquiring data on about 50%. These objects span Vmag = 17.5-19.5, a range inaccessible with ground-based adaptive optics. We now have a signifi ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT    # 4151 PERIOD COVERED: UT July 7,8,9, 2006 (DOY 188,189,190) 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 obtain ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT    # 4150 PERIOD COVERED: UT July 6, 2006 (DOY 187) OBSERVATIONS SCHEDULED ACS/HRC 10545 Icy planetoids of the outer solar system Early HST studies of satellites of Kuiper belt object focussed on the 50-200 km objects that were the largest known at the time. In the past 3 years we have discovered a population of much more rare and much larger {500-2000+ km} icy planetoids in the Kuiper belt. These objects are the larges ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4149 PERIOD COVERED: UT July 5, 2006 (DOY 186) OBSERVATIONS SCHEDULED ACS/HRC 10738 Earth Flats Sky flats will be obtained by observing the bright Earth with the HRC and WFC. These observations will be used to verify the accuracy of the flats currently in the pipeline and to monitor any changes. Weekly coronagraphic monitoring is required to assess the changing position of the spots. ACS/HRC 10752 Cycle 14 Focus Monitor The focus ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4145 PERIOD COVERED: UT June 28, 2006 (DOY 179) OBSERVATIONS SCHEDULED FGS 10612 Binary Stars in Cyg OB2: Relics of Massive Star Formation in a Super-Star Cluster We propose to make a high angular resolution SNAP survey of the massive stars in the nearby, super-star cluster Cyg OB2. We will use FGS1r TRANS mode observations to search for astrometric companions in the separation range of 0.01 to 1.00 arcsec and in the magnitud ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4144 PERIOD COVERED: UT June 27, 2006 (DOY 178) OBSERVATIONS SCHEDULED WFPC2 10551 Gamma-Ray Bursts from Start to Finish: A Legacy Approach The progenitors of long-duration GRBs are now known to be massive stars. This result lends credence to the collapsar model, where a rotating massive star ends its life leaving a black hole or a highly magnetized neutron star, and confirms its essential aspects. The focus of attention now ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4143 PERIOD COVERED: UT June 26, 2006 (DOY 177) OBSERVATIONS SCHEDULED FGS 10612 Binary Stars in Cyg OB2: Relics of Massive Star Formation in a Super-Star Cluster We propose to make a high angular resolution SNAP survey of the massive stars in the nearby, super-star cluster Cyg OB2. We will use FGS1r TRANS mode observations to search for astrometric companions in the separation range of 0.01 to 1.00 arcsec and in the magnitud ...Continue Reading