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Daily Report #5799
Period Covered:
08:00 pm May 29, 2012 - 07:59 pm May 30, 2012
(DOY 151/0000z - 151/2359z)
Significant Spacecraft Anomalies: (The following are preliminary reports of potential non-nominal performance that will be investigated.) HSTARs: 13352 - SCI: GSAcq (1,2,1) results in Fine Lock Back-up (1,0,1)@150/0441z COMPLETED OPS REQUEST: 19250-0 - Clear COS Event Flag 3 for prop 12810 visits 12-13@151/1813z COMPLETED OPS NOTES: none FGS ACQ STATUS: SCHEDULED SUCCESSFUL FGS GSAcq 10 10 FGS REAcq 6 6 OBAD with Maneuver 5 4 SIGNIFICANT EVENTS: The COS FUV Special Recovery activities (proposal 12810 visits 10 - 11) successfully completed today without incident. The FUV was ramped to the 2nd HV plateau (-5010V/-4963V (160/157)) 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 (160/157) 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 12 and 13. Visits 12 and 13 are scheduled for Thursday May 31th (DOY 152). The COS event flag 3 was cleared @151/18:14 via OR 19250 -jb
| Program | Principal Investigator | Program Title |
|---|---|---|
| Science Observations Scheduled | ||
| 12468 | Keith Noll, NASA Goddard Space Flight Center | How Fast Did Neptune Migrate? A Search for Cold Red Resonant Binaries |
| 12473 | David Sing, University of Exeter | An Optical Transmission Spectral Survey of hot-Jupiter Exoplanetary Atmospheres |
| 12534 | Harry Teplitz, California Institute of Technology | The Panchromatic Hubble Ultra Deep Field: Ultraviolet Coverage |
| 12548 | Jay Farihi, University of Leicester | Constraining Planet Formation in the Unique Evolved Binary HR 637 {GJ 86} |
| 12555 | Robert da Silva, University of California - Santa Cruz | On the Triggering of Quasars During First Passage |
| 12576 | Paul Kalas, University of California - Berkeley | Orbit determination for Fomalhaut b and the origin of the debris belt halo |
| Calibration Observations Scheduled | ||
| 12689 | Tiffany Borders, Space Telescope Science Institute | WFC3 UVIS CCD Daily Monitor |
| 12693 | Kai Noeske, Space Telescope Science Institute | WFC3/UVIS Charge Injection |
| 12720 | Colin Cox, Space Telescope Science Institute | NUV Detector Dark 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 |