Hubble Space Telescope Daily Report #2792 01/30/01
HUBBLE SPACE TELESCOPE
DAILY REPORT #2797
PERIOD COVERED: 0000Z (UTC) 01/29/01 – 0000Z (UTC) 01/30/01
Daily Status Report as of 030/0000Z
1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:
1.1 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.
1.2 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.
1.3 Completed STIS/CCD 8856 (CCD Sensitivity Monitor C9)
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 proposal also monitors the STIS focus in an imaging mode. There were no anomalies.
1.4 Completed WF/PC-2 8600 (Dwarf Elliptical Galaxy Snapshot Survey III)
The WF/PC-2 was used to extend our V and I snapshot survey of nearby dwarf elliptical {dE} galaxies to include a sample of 30 bright dE with significant globular cluster {GC} populations. There were no reported problems.
1.5 Completed Thirteen Sets of 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. As described in HSTAR 8065 and 2.1, the re-acquisition for the tenth iteration of this proposal failed, the take data flag remained down, and three observations were lost. Otherwise, the proposal completed nominally with no further reported problems.
1.6 Completed Four 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.
1.7 Completed Two Sets of 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.
1.8 Completed Four Sets of WF/PC-2 8811 (Cycle 9 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.
1.9 Completed WF/PC-2 8874 (Heritage Observations of the Horsehead Nebula)
The WF/PC-2 was used to observe the Horsehead Nebula {Barnard 33} as part of the Hubble Heritage Project. The aim of the Heritage Project is to provide spectacular HST color images for public release, outreach, and education. There were no reported anomalies.
1.10 Completed STIS/CCD/MA1 8117 (Saturn’s Far UV Aurora and Polar Hazes)
The Space Telescope Imaging Spectrograph (CCD and MA1) was used to carry out a coordinated program of STIS imaging and spectroscopy in the FUV and NUV during one full rotation of the planet in order to capture a complete picture of the south auroral emission region on Saturn. FUV imaging and chapman-profile modeling is our lever to characterize emissions from above the homopause, while FUV and NUV spectroscopy and radiative transfer modeling will describe the atmospheric phenomena driven by particle radiation that penetrates below the homopause. The proposal completed with no reported problems.
1.11 Completed WF/PC-2 8812 (Cycle 9 Internal Monitor)
The WF/PC-2 was used to obtain routine internal monitors for WFPC2 in order to monitor the health of the cameras. A variety of internal exposures are obtained in order to provide a monitor of the integrity of the CCD camera electronics in both bays {gain 7 and gain 15}, a test for quantum efficiency in the CCDs, and a monitor for possible buildup of contaminants on the CCD windows. There were no reported problems.
1.12 Completed WF/PC-2 8137 (Intermediate-Age Dwarf Spheroidal Galaxies in the M81 Group)
The WF/PC-2 was used to reconstruct the star-formation history {SFH} of the Local Universe via observations of the SFHs of individual, nearby galaxies and compare the result with the SFH history derived from high-redshift galaxies. The observations completed with no reported anomalies.
1.13 Completed STIS/CCD 8884 (POMS Test Proposal: STIS Non-Scripted Parallel Proposal Continuation)
The Space Telescope Imaging Spectrograph (CCD) was used to take parallel images of random areas of the sky. The proposal completed nominally.
2.0 FLIGHT OPERATIONS SUMMARY:
2.1 Guide Star Acquisitions:
Scheduled Acquisitions: 5
Successful: 5
Scheduled Re-acquisitions: 8
Successful: 7
The re-acquisition at 029/2346Z failed when the scan step limit was exceeded on FGS-2. The two previous and two subsequent re-acquisitions were all successful. A real-time map was run at 030/1018Z per COP 3.46. HSTAR 8065 was written. The proposal detailed in 1.5 was affected.
2.2 FHST Updates:
Scheduled: 7
Successful: 7
2.3 Operations Notes:
The SSR EDAC error counter was cleared twice, using ROP DR-1A.
The ephemeris table was uplinked at 030/0111Z as directed by ROP DF-07A.
3.0 SIGNIFICANT FORTHCOMING EVENTS:
Continuation of normal science observations and calibrations.
