Hubble Space Telescope Report #2784 11 Jan 2001
HUBBLE SPACE TELESCOPE
DAILY REPORT #2784
PERIOD COVERED: 0000Z (UTC) 01/10/01 – 0000Z (UTC) 01/11/01
Daily Status Report as of 011/0000Z
1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:
1.1 Completed STIS/CCD/MA2 8628 (High Density {~ 10^9 Cm^-3} Gas In The Jet Formation Region Of T Tauri Stars)
The Space Telescope Imaging Spectrograph (CCD and MA2) was used to investigate the ubiquitous outflow that occurs during star formation for which the driving mechanism is still unknown. The proposal intends to compare the kinematics of the UV line formation region with that of the optical forbidden lines and to determine the physical characteristics of the jet formation region. There were no reported problems.
1.2 Completed Two Sets of WF/PC-2 8827 (Cycle 9 Supplemental Darks pt2/3)
The WF/PC-2 was used to obtain three dark frames every day to provide data for monitoring and characterizing the evolution of hot pixels. The proposal completed nominally.
1.3 Completed WF/PC-2 8805 (POMS Test Proposal: WFII Parallel Archive Proposal Continuation)
The WF/PC-2 was used to perform a generic target version of the WFPC2 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. The proposal completed with no reported problems.
1.4 Completed Two Sets of STIS/CCD 8837 (CCD Dark Monitor-Part 1)
The Space Telescope Imaging Spectrograph (CCD) was used to monitor the darks. The proposal completed with no reported problems.
1.5 Completed WF/PC-2 8183 (Morphology of the Most Massive Galaxies in the Early Universe)
The WF/PC-2 was used to make observations of the massive radio galaxy MRC0140-25 in order to study its morphology. High redshift radio galaxies are fundamentally important probes of galaxy and cluster formation. The observations were completed as scheduled, and no anomalies were reported.
1.6 Completed STIS/CCD 8838 (Bias Monitor – Part 1)
The Space Telescope Imaging Spectrograph (CCD) was used to monitor the bias in the 1×1, 1×2, 2×1, and 2×2 bin settings at gain=1, and 1×1 at gain = 4, to build up high-S/N superbiases and track the evolution of hot columns. The proposal completed nominally.
1.7 Completed WF/PC-2 8706 (Phoenix: "Halo/Disk” Structures In Dwarf Galaxies)
The WF/PC-2 was used to perform hierarchical clustering scenarios for galaxy formation that predict that dwarf galaxies are the first to be formed and that they are building blocks of larger galaxies. In this case, the spatial structure and the stellar age and metallicity distribution of the Phoenix dwarf galaxy are measured to give support or reject such scenarios. The proposal completed with no anomalous activity.
1.8 Completed STIS/CCD 8562 (Probing the Large Scale Structure: Cosmic Shear Observations)
The Space Telescope Imaging Spectrograph (CCD) was used to probe the distortion of light bundles from distant galaxies, looking at the statistical properties of the intervening inhomogeneous {dark} matter distribution. The proposal completed nominally.
1.9 Completed STIS/MA1 8843 (Cycle 9 MAMA Dark Measurements)
The Space Telescope Imaging Spectrograph (MA1) was used to perform the routine monitoring of the MAMA detector dark noise. The proposal completed nominally.
1.10 Completed STIS/CCD/MA2 8673 (The Properties of Ly-Alpha Absorbers at Redshifts Between 0.9HST)
The Space Telescope Imaging Spectrograph (CCD and MA2) was used obtain new Echelle resolution spectra of three bright quasars which, when combined with archived and scheduled observations, will be used to characterize the properties of Ly-Alpha absorbers in the redshift range 0.9<z<1.6. There were no reported problems.
1.11 Completed Three Sets of WF/PC-2 8816 (Cycle 9 UV Earthflats)
The WF/PC-2 was used to obtain sequences of Earth streak flats to improve the quality of pipeline flat fields for the WFPC2 UV filter set and in order to monitor flat field stability. There were no reported problems.
2.0 FLIGHT OPERATIONS SUMMARY:
2.1 Guide Star Acquisitions:
Scheduled Acquisitions: 7
Successful: 7
Scheduled Re-acquisitions: 8
Successful: 8
2.2 FHST Updates:
Scheduled: 14
Successful: 14
2.3 Operations Notes:
As documented in HSTAR 8044, the SADE-2 +Solar Array Drive Electronics (BE2%DMT3) went out of limits (yellow) high at 011/095112Z, with a value of 91.5181 degC, and returned to normal bounds at
011/095118Z. The high yellow limit is 90.0 degC.
3.0 SIGNIFICANT FORTHCOMING EVENTS:
Continuation of normal science observations and calibrations.
