Earlier reports Convert Day of Year

The Hubble Space Telescope

Unlocking the Secrets of the Universe

Daily Report #5335

Period Covered:
07:00 pm February 20, 2011 - 06:59 pm February 21, 2011
(DOY 52/0000z - 52/2359z)

Flight Operations Summary

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

HSTARs:
12706 - SCI: REACQ(2,1,1) fails to RGA control, FGS 2 Search Radius Limit exceeded. Initial GSACQ at
18:53:11 was successful. @052/2055z
Observations affected: COS 27 to 29, proposal 12424


COMPLETED OPS REQUEST:
none

COMPLETED OPS NOTES:
none

FGS ACQ STATUS:
		    SCHEDULED       SUCCESSFUL
FGS GSAcq		9		9
FGS REAcq		6		5
OBAD with Maneuver	9		9

SIGNIFICANT EVENTS:
none


Program Principal Investigator Program Title
Science Observations Scheduled
12099 Adam Riess, The Johns Hopkins University Supernova Follow-up for MCT
12161 David Ardila, Jet Propulsion Laboratory Accretion in Close Pre-Main-Sequence Binaries
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
12286 Hao-Jing Yan, The Ohio State University Hubble Infrared Pure Parallel Imaging Extragalactic Survey {HIPPIES}
12289 J. Howk, University of Notre Dame A COS Snapshot Survey for z < 1.25 Lyman Limit Systems
12292 Tommaso Treu, University of California - Santa Barbara SWELLS: doubling the number of disk-dominated edge-on spiral lens galaxies
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
12344 Tiffany Borders, Space Telescope Science Institute Cycle 18: UVIS Bowtie Monitor
12349 Michael Dulude, Space Telescope Science Institute IR Dark Monitor
12384 David Golimowski, Space Telescope Science Institute CCD Daily Monitor {Part 1}
12400 Michael Wolfe, Space Telescope Science Institute Dark Monitor Part 1
12404 Michael Wolfe, Space Telescope Science Institute STIS CCD Hot Pixel Annealing
12420 Wei Zheng, The Johns Hopkins University NUV Detector Dark Monitor
12424 Rachel Osten, Space Telescope Science Institute COS FUV Spectroscopic Sensitivity Monitoring