Earlier reports | Convert Day of Year |
Daily Report #5794
Period Covered:
08:00 pm May 24, 2012 - 07:59 pm May 25, 2012
(DOY 146/0000z - 146/2359z)
This report was generated by the HST Automated Report System @2012-05-26 17:02:00 GMT
Significant Spacecraft Anomalies: (The following are preliminary reports of potential non-nominal performance that will be investigated.) HSTARs: none COMPLETED OPS REQUEST: none COMPLETED OPS NOTES: none FGS ACQ STATUS: SCHEDULED SUCCESSFUL FGS GSAcq 8 8 FGS REAcq 9 9 OBAD with Maneuver 3 3 SIGNIFICANT EVENTS: The COS FUV Special Recovery activities (proposal 12810 visits 6 - 7) successfully completed today without incident. The FUV was ramped to the 1st HV plateau -4916V/-4869V (154/151) with the QE grid off, no elevated counts or HV current transients were observed in the engineering telemetry during or after the ramp. The STScI and MOSES2 Engineering Teams have examined the relevant telemetry and confirmed all voltages, currents and temperatures were as expected. The voltage and current monitors matched the signatures seen in SMOV. The COS Science Team at STScI has examined the science data and DCE memory dumps and everything is nominal. No HV current transients or unexpected elevated count rates were observed in the DCE memory dumps. The science data consisted of 2 sets of dark and wavecal exposures. The exposures were collected immediately after ramping to HVNom (154/151) and an hour later at the same HV level. Comparisons with SMOV data taken with the QE grid on indicates comparable behavior with the grid off when the aging of the detector and temporal fluctuations are considered. The Engineering and Science Teams have given a "Go" to proceed with visit 8 and 9. Visits 8 and 9 are scheduled for Tuesday May 29th (DOY 150). The COS event flag 3 was cleared @146/20:25 via OR 19247 -jb
Program | Principal Investigator | Program Title |
---|---|---|
Science Observations Scheduled | ||
12443 | Sandra Faber, University of California - Santa Cruz | Galaxy Assembly and the Evolution of Structure over the First Third of Cosmic Time - III |
12487 | Xiaohui Fan, University of Arizona | Probing Population III Star Formation in a z=7 Galaxy |
12488 | Mattia Negrello, Open University | SNAPshot observations of gravitational lens systems discovered via wide-field Herschel imaging |
12549 | Thomas Brown, Space Telescope Science Institute | The Formation History of the Ultra-Faint Dwarf Galaxies |
Calibration Observations Scheduled | ||
12688 | Tiffany Borders, Space Telescope Science Institute | Cycle 17: UVIS Bowtie Monitor |
12689 | Tiffany Borders, Space Telescope Science Institute | WFC3 UVIS CCD Daily Monitor |
12742 | Justin Ely, Space Telescope Science Institute | CCD Dark Monitor Part 2 |
12744 | Justin Ely, Space Telescope Science Institute | CCD Bias and Read Noise Monitor-Part 2 |
12782 | David Golimowski, Space Telescope Science Institute | CCD Daily Monitor {Part 2} |
Other Observations Scheduled | ||
12810 | Thomas Wheeler, Space Telescope Science Institute | COS/FUV Special Recovery |