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Daily Report #5328
Period Covered:
07:00 pm February 13, 2011 - 06:59 pm February 14, 2011
(DOY 45/0000z - 45/2359z)
Significant Spacecraft Anomalies: (The following are preliminary reports of potential non-nominal performance that will be investigated.) HSTARs: 12679 - SCI: Reacquisition takes multiple attempts at FL@028/0251z 12680 - SCI: GSAcq(2,1,1) Loss of Lock@044/0129z 12681 - SCI: REAcq(2,1,1) SCI: REAcq(2,1,1) at 045/04:17:03 and 045/05:52:53 fails to RGA control, FGS 2 Search Radius Limit exceeded.@045/0452z Observations affected: STIS 6-11, Proposal ID#12278. 12683 - SCI: REAcq runs long due to LOL cycling@027/0549z 12684 - SCI: GSAcq (1,2,1) runs long due to large search @026/1553z 12685 - SCI: REAcq runs long due to extended Search@029/0043z 12686 - SCI: GSAcq(2,1,1) results in fine lock backup (2,0,2) using FGS-2 without FGSs indication flags posted.@045/1547z COMPLETED OPS REQUEST: 19026-0 - Modify FGS Attitude Error Threshold and Maximum Attitude Error Update Limit@45/1658z COMPLETED OPS NOTES: none FGS ACQ STATUS: SCHEDULED SUCCESSFUL FGS GSAcq 8 8 FGS REAcq 7 5 OBAD with Maneuver 7 7 SIGNIFICANT EVENTS: STIS FSW OV0009 (CS5.01A/MIE4.4) was successfully installed via stored commanding. Memory Monitors and a Checskum were used to confirm a good install. First use of the updated target acquisition macro OFINDSLT (were the updated paramaters MinimumLampFluxThreshold and LampStabilizeOnTime are used) executed at 045/01:16 successfully. Ops Request 19026-0 was completed at 2011/045 16:58:12 to modify the FGS Attitude Error Threshold and Maximum Attitude Error Update Limit for Gyro 3 Attitude Observer Anomaly (AOA) mitigation. The GS re-acquisition at 045/19:00 was successful with a residual sequential update of [1.438 -0.209 -0.264] arcsec.
| Program | Principal Investigator | Program Title |
|---|---|---|
| Science Observations Scheduled | ||
| 11644 | Michael Brown, California Institute of Technology | A dynamical-compositional survey of the Kuiper belt: a new window into the formation of the outer solar system |
| 12199 | Peter Schneider, Universitat Hamburg, Hamburger Sternwarte | The shocking truth about DG Tau's jet |
| 12234 | Wesley Fraser, California Institute of Technology | Differentiation in the Kuiper belt: a search for silicates on icy bodies. |
| 12278 | Thomas Ayres, University of Colorado at Boulder | Advanced Spectral Library Project: Cool Stars |
| 12292 | Tommaso Treu, University of California - Santa Barbara | SWELLS: doubling the number of disk-dominated edge-on spiral lens galaxies |
| 12317 | Michael Liu, University of Hawaii | Dynamical Masses of the Coolest Brown Dwarfs |
| 12365 | Junfeng Wang, Smithsonian Institution Astrophysical Observatory | A CHandra survey of Extended Emission-line Regions in nearby Seyfert galaxies {CHEERS} |
| Calibration Observations Scheduled | ||
| 12339 | Elena Sabbi, Space Telescope Science Institute | UVIS Lflat |
| 12342 | Tiffany Borders, Space Telescope Science Institute | WFC3 UVIS CCD Daily Monitor |
| 12384 | David Golimowski, Space Telescope Science Institute | CCD Daily Monitor {Part 1} |
| 12400 | Michael Wolfe, Space Telescope Science Institute | Dark Monitor Part 1 |
| 12402 | Michael Wolfe, Space Telescope Science Institute | CCD Bias and Read Noise Monitor-Part 1 |