The Hubble Space Telescope
Unlocking the Secrets of the Universe
Daily Report #5337
Period Covered:
07:00 pm February 22, 2011 - 06:59 pm February 23, 2011
(DOY 54/0000z - 54/2359z)
Flight Operations Summary
Significant Spacecraft Anomalies: (The following are preliminary reports
of potential non-nominal performance that will be investigated.)
HSTARs:
12709 - SCI: GSAcq(1,2,1) results in Fine Lock Backup (1,0,1) @054/1519z
Observations Possible affected: ACS 36-39, Proposal ID#12310.
12711 - SCI: GSACQ(2,0,2) fails to RGA, Scan Step Limit on FGS 2 @054/1954z
Observations affected: WFC3 65, Proposal ID#12307.
12712 - SCI: GSAcq(1,2,1) required multiple attemtps,initially received a search radius limit
exceeded flag on FGS2. The second acquisition attempt to initially achieve FL-DV on both FGSs, but
was not able to maintain it. The third attempt was successful.@045/1359z
12713 - SCI: GSAcq(1,2,1) requires two attempts for FL-DV@045/1741z
COMPLETED OPS REQUEST:
none
COMPLETED OPS NOTES:
none
FGS ACQ STATUS:
		    SCHEDULED       SUCCESSFUL
FGS GSAcq		9		8
FGS REAcq		7		7
OBAD with Maneuver	8		8
SIGNIFICANT EVENTS:
none
  
    
      | Program | Principal Investigator | Program Title | 
    
      | Science Observations Scheduled | 
    
      | 12240 | Oleg Kargaltsev, University of Florida | ACS polarimetry of the Vela Pulsar Wind Nebula | 
    
      | 12278 | Thomas Ayres, University of Colorado at Boulder | Advanced Spectral Library Project: Cool Stars | 
    
      | 12289 | J. Howk, University of Notre Dame | A COS Snapshot Survey for z < 1.25 Lyman Limit Systems | 
    
      | 12307 | Andrew Levan, The University of Warwick | A public SNAPSHOT survey of gamma-ray burst host galaxies | 
    
      | 12310 | Goeran Oestlin, Stockholm University | LARS - The Lyman Alpha Reference Sample | 
    
      | 12311 | Giampaolo Piotto, Universita di Padova | Multiple Stellar Populations in Galactic Globular Clusters | 
    
      | 12324 | C. Kochanek, The Ohio State University | The Temperature Profiles of Quasar Accretion Disks | 
    
      | 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 | 
    
      | 12384 | David Golimowski, Space Telescope Science Institute | CCD Daily Monitor {Part 1} | 
    
      | 12392 | Ralph Bohlin, Space Telescope Science Institute | Photometric Cross-Calibration using Stellar Flux Standards | 
    
      | 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 |