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Daily Report #5798
Period Covered:
08:00 pm May 28, 2012 - 07:59 pm May 29, 2012
(DOY 150/0000z - 150/2359z)
Significant Spacecraft Anomalies: (The following are preliminary reports of potential non-nominal performance that will be investigated.) HSTARs: 13349 - SCI: Loss of Lock Caused Loss of STIS Science Data@145/0739z COMPLETED OPS REQUEST: 19248-0 - Clear COS Event Flag 3 for prop 12810 visits 10-11@150/1946z COMPLETED OPS NOTES: none FGS ACQ STATUS: SCHEDULED SUCCESSFUL FGS GSAcq 9 9 FGS REAcq 6 6 OBAD with Maneuver 6 6 SIGNIFICANT EVENTS: The COS FUV Special Recovery activities (proposal 12810 visits 8 - 9) successfully completed today without incident. The FUV was ramped to HVLow (-4069V/-4069V (100/100)) with the QE grid on, 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 has found no anomalous behavior. No HV current transients or unexpected elevated count rates were observed in the DCE memory dumps. The science data consisted of a single 300 second dark exposure with the QE grid on at HVLOW. No comparison with SMOV data was possible, since no darks at HVLOW were taken at that time. Comparison with similar data taken with the QE grid off in 12810 shows similar behavior. The Engineering and Science Teams have given a "Go" to proceed with visit 10 and 11. Visits 10 and 11 are scheduled for Wednesday May 30th (DOY 151). The COS event flag 3 was cleared @150/19:46 via OR 19248-0 -jb
| Program | Principal Investigator | Program Title |
|---|---|---|
| Science Observations Scheduled | ||
| 12478 | Jeffrey Cuzzi, NASA Ames Research Center | The Mysterious Redness of Saturn's Rings |
| 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} |
| 12570 | Sylvain Veilleux, University of Maryland | Deep FUV Imaging of Cool Cores in Galaxy Clusters |
| 12576 | Paul Kalas, University of California - Berkeley | Orbit determination for Fomalhaut b and the origin of the debris belt halo |
| 12671 | John Biretta, Space Telescope Science Institute | High-Precision Proper Motions in the M87 Jet |
| Calibration Observations Scheduled | ||
| 12351 | Knox Long, Space Telescope Science Institute | IR Persistence 18 |
| 12689 | Tiffany Borders, Space Telescope Science Institute | WFC3 UVIS CCD Daily Monitor |
| 12693 | Kai Noeske, Space Telescope Science Institute | WFC3/UVIS Charge Injection |
| 12710 | Jennifer Mack, Space Telescope Science Institute | UVIS Bright Earth Flats |
| 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 |
| 12784 | Elena Sabbi, Space Telescope Science Institute - ESA | Characterization of UVIS Traps Via Charge-Injected Biases |
| Other Observations Scheduled | ||
| 12810 | Thomas Wheeler, Space Telescope Science Institute | COS/FUV Special Recovery |