Hubble Space Telescope Daily Report #2703 09/08/00
HUBBLE SPACE TELESCOPE
DAILY REPORT #2703
PERIOD COVERED: 0000Z (UTC) 09/07/00 – 0000Z (UTC) 09/08/00
Daily Status Report as of 252/0000Z
1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:
1.1 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.
1.2 Completed Five Sets of STIS/CCD 8631 (Bright Quasar Close Lensing Search II)
The Space Telescope Imaging Spectrograph (CCD) was used to expand the Cycle 8 second generation HST snapshot survey of bright quasars, optimized to find lenses with component image separations < 1". The observations completed nominally.
1.3 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.
1.4 Completed STIS/CCD 8845 (Spectroscopic Flats C9)
The Space Telescope Imaging Spectrograph (CCD) was used to obtain CCD flats in the spectroscopic mode. The observations completed with no reported problems.
1.5 Completed STIS/CCD 8846 (Imaging Flats C9)
The Space Telescope Imaging Spectrograph (CCD) was used to investigate flat-field stability over a monthly period. The proposal completed nominally.
1.6 Completed Two Sets of WF/PC-2 8822 (Decontaminations and Associated Observations Pt. 1/4)
The Wf/PC-2 was used for the monthly decons. Also included are instrument monitors tied to decons: photometric stability check, focus monitor, pre- and post-decon internals {bias, intflats, kspots, & darks}, UV throughput check, VISFLAT sweep, and internal UV flat check. There were no reported problems.
1.7 Completed STIS/CCD/MA1/MA2 8779 (VV Cephei: The Egress from Chromospheric Eclipse)
The Space Telescope Imaging Spectrograph (CCD, MA1 and MA2) was used to obtain STIS (and later FGS1R) observations of the long- period {20.3 yrs} eclipsing binary VV as it continues to emerge from chromospheric eclipse. The observations completed with no problems.
1.8 Completed Two Sets of WF/PC-2 8826 (Cycle 9 Supplemental Darks pt 1)
The WF/PC-2 was used to perform a T dark calibration program that obtains three dark frames every day in order to provide data for monitoring and characterizing the evolution of hot pixels. There were no reported anomalies.
1.9 Completed WF/PC-2 8167 (WF/PC-2 Imaging of a Galaxy at z = 5.34 and its Field)
The WF/PC-2 was used to make observations of the galaxy 0140+326RD which is at a distance of Z = 5.34. This galaxy was the first
spectroscopically confirmed object at Z > 5 and among the few confirmed objects at z > 5 currently. The observations were completed as planned, and no anomalies were reported.
1.10 Completed Four Sets of STIS/CCD 8808 (POMS Test Proposal: STIS Non-Scripted Parallel Proposal Continuation III)
The Space Telescope Imaging Spectrograph (CCD) was used to make non-scripted, parallel observations as part of a POMS test proposal. The observations completed with no anomalous activity.
1.11 Completed Two 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.
1.12 Completed STIS/MA1 8426 (Cycle 8 MAMA Dark Measurements)
The Space Telescope Imaging Spectrograph (MA1) was used to make a routine Cycle-8 MAMA dark noise calibration measurement. This proposal will provide the primary means of checking on the health of the MAMA detectors. This is done through frequent monitoring of the background count rate. The observations were completed as planned, and no problems were reported.
1.13 Completed STIS/CCD 8784 (Spectroscopy Of Beta Pic And Its Disk)
The Space Telescope Imaging Spectrograph (CCD) was used to obtain a G430L long-slit spectrum of the disk of Beta Pic. This new program is designed to obtain the SED of the Beta Pic for comparison with the disk SED. The proposal completed nominally.
1.14 Completed Three Sets of 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. As described in 2.1 and HSTAR 7844, the acquisition and re-acquisition for the second iteration of this proposal defaulted to fine lick backup on one FGS only, possibly affecting two observations. The proposal completed with no further reported problems.
1.15 Completed Two Sets of STIS/CCD 8572 (Identifying Normal Galaxies at 1.3 < z < 2.5)
The Space Telescope Imaging Spectrograph (CCD) was used to perform studies of faint, distant galaxies. It is now possible to observe hundreds of galaxies out to z=1 and in the range 3 < z < 4.5, yet the redshift range 1 < z <3 remains largely unexplored. As described in 2.1 and HSTAR 7844, the acquisition and re-acquisition for the first iteration of this proposal defaulted to fine lick backup on one FGS only, possibly affecting one observation. No other problems were noted.
2.0 FLIGHT OPERATIONS SUMMARY:
2.1 Guide Star Acquisitions:
Scheduled Acquisitions: 10
Successful: 10
Scheduled Re-acquisitions: 7
Successful: 7
As described in HSTAR 7844, the acquisition at 251/201518Z and the re-acquisition at 251/214604Z defaulted to fine lock backup on FGS-3 only when FGS-2 failed to achieve lock. A map at 251/212418 showed relatively small errors. The subsequent acquisition was successful. The observation detailed in 1.14 and 1.15 may have been affected.
2.2 FHST Updates:
Scheduled: 21
Successful: 21
2.3 Operations Notes:
Realtime operations transferred from CCS sting "G" to string "B" at 251/1600Z. The operations team then returned from the Science Institute for the midnight shift last night.
Using ROP SR-1A, the SSR EDAC error counter was cleared four times.
The engineering status buffer limit SESBSLD was modified at 251/1817Z per ROP DF-18A.
SSA transmitter 2 was turned on at 252/0234Z and off at 252/0245Z per ROP IC-2.
3.0 SIGNIFICANT FORTHCOMING EVENTS:
Continuation of normal science observations and calibrations.