Earlier reports Convert Day of Year

The Hubble Space Telescope

Unlocking the Secrets of the Universe

Daily Report #5339

Period Covered:
07:00 pm February 24, 2011 - 06:59 pm February 25, 2011
(DOY 56/0000z - 56/2359z)

Flight Operations Summary

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

HSTARs:
12721 - SCI: GSAcq(1,3,1) scheduled at 056/08:34:47, REAcq(1,3,1) scheduled at 056/10:10:02, at
11:45:53, at 13:25:29 and at 15:05:15 all results in Fine Lock Backup (1,0,1)@056/0841z
Observations Possible affected: ACS 73 -88, Proposal ID#12253.


COMPLETED OPS REQUEST:
none

COMPLETED OPS NOTES:
2129-1 - SCI: Modify COS FUV MAX HV operating limits (proposal12432@56/1842z

FGS ACQ STATUS:
		    SCHEDULED       SUCCESSFUL
FGS GSAcq		7		7
FGS REAcq		9		9
OBAD with Maneuver	7		7

SIGNIFICANT EVENTS:
none


Program Principal Investigator Program Title
Science Observations Scheduled
12161 David Ardila, Jet Propulsion Laboratory Accretion in Close Pre-Main-Sequence Binaries
12215 Nancy Evans, Smithsonian Institution Astrophysical Observatory Searching for the Missing Low-Mass Companions of Massive Stars
12253 Douglas Clowe, Ohio University Gravity in the Crossfire: Revealing the Properties of Dark Matter in Bullet-like Clusters
12261 Herman Marshall, Massachusetts Institute of Technology Resolving the Pictor A Jet
12278 Thomas Ayres, University of Colorado at Boulder Advanced Spectral Library Project: Cool Stars
12320 Brian Chaboyer, Dartmouth College The Ages of Globular Clusters and the Population II Distance Scale
Calibration Observations Scheduled
12342 Tiffany Borders, Space Telescope Science Institute WFC3 UVIS CCD Daily Monitor
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