Earlier reports Convert Day of Year

The Hubble Space Telescope

Unlocking the Secrets of the Universe

Daily Report #5352

Period Covered:
07:00 pm March 9, 2011 - 06:59 pm March 10, 2011
(DOY 69/0000z - 69/2359z)

Flight Operations Summary

Significant Spacecraft Anomalies: (The following are preliminary reports
of potential non-nominal performance that will be investigated.)

12759 - SCI: GSAcq(2,1,1) scheduled at 069/01:07:20 during ZOE period was observed to have resulted
to fine lock backup (2,0,2) using FGS-2 without FGSs indication flags posted. @068/0107z
Observations possibly affected: WFC3 51-52 Proposal ID#12356, STIS 10, Proposal ID#12400.

12761 - SCI: GSAcq scheduled for 2011.065 22:35:50 ran long causing the TDF to come up 18.3 seconds
after the COS Shutter commanding at 2011.065 22:40:18.@065/2240z
Observation possibly affected COS 8 Proposal ID#12161

12762 - GSAcq(2,1,1) at 065/19:42:34 was unable to maintain FL-DV after initially achieving it on
both FGS 1 and2. The second acquisition attempt was successful. @065/1942z



FGS GSAcq		7		6
FGS REAcq		8		8
OBAD with Maneuver	7		7


Program Principal Investigator Program Title
Science Observations Scheduled
12018 Andrea Prestwich, Smithsonian Institution Astrophysical Observatory Ultra-Luminous x-Ray Sources in the Most Metal-Poor Galaxies
12039 James Green, University of Colorado at Boulder COS-GTO: X-Ray Binaries
12161 David Ardila, Jet Propulsion Laboratory Accretion in Close Pre-Main-Sequence Binaries
12231 Paula Szkody, University of Washington An Unprecedented Opportunity to Follow 4 Accreting WDs into the Instabilty Strip
12269 Claudia Scarlata, California Institute of Technology The escape of Lya photons in star-forming galaxies
12363 Yue Shen, Smithsonian Institution Astrophysical Observatory X-ray and HST Imaging of Kpc-Scale Binary AGNs
Calibration Observations Scheduled
12342 Tiffany Borders, Space Telescope Science Institute WFC3 UVIS CCD Daily Monitor
12351 Knox Long, Space Telescope Science Institute IR Persistence 18
12356 Norbert Pirzkal, Space Telescope Science Institute IR Grism Wavelength Calibration Stability Test
12393 Thomas Wheeler, Space Telescope Science Institute ACS SBC Recovery from Anomalous Shutdown
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