Earlier reports Convert Day of Year

The Hubble Space Telescope

Unlocking the Secrets of the Universe

Daily Report #5424

Period Covered:
08:00 pm May 20, 2011 - 07:59 pm May 21, 2011
(DOY 141/0000z - 141/2359z)

Flight Operations Summary

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

HSTARs:
12854 - SCI: GSACQ(1,2,1) Fine Lock Backup on FGS2, Scan Step Limit on FGS 1 @141/0018z

COMPLETED OPS REQUEST:
none

COMPLETED OPS NOTES:
none

FGS ACQ STATUS:
		    SCHEDULED       SUCCESSFUL
FGS GSAcq		9		8
FGS REAcq		8		8
OBAD with Maneuver	7		5

SIGNIFICANT EVENTS:
none


Program Principal Investigator Program Title
Science Observations Scheduled
12025 James Green, University of Colorado at Boulder COS-GTO: QSO Absorbers, Galaxies and Large-scale Structures in the Local Universe Part 2
12066 Marc Postman, Space Telescope Science Institute Through a Lens, Darkly - New Constraints on the Fundamental Components of the Cosmos
12182 Tuan Do, University of California - Irvine Measuring the physical properties of the Milky Way nuclear star cluster with proper motions
12192 James Lauroesch, University of Louisville Research Foundation, Inc. A SNAPSHOT Survey of Interstellar Absorption Lines
12193 Jae-Woo Lee, Sejong University Globular clusters as galaxy building blocks
12210 Adam Bolton, University of Utah SLACS for the Masses: Extending Strong Lensing to Lower Masses and Smaller Radii
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
12380 Bryan Hilbert, Space Telescope Science Institute Guard Darks
12401 Michael Wolfe, Space Telescope Science Institute Dark Monitor Part 2
12403 Michael Wolfe, Space Telescope Science Institute CCD Bias and Read Noise Monitor-Part 2
12404 Michael Wolfe, Space Telescope Science Institute STIS CCD Hot Pixel Annealing
12424 Rachel Osten, Space Telescope Science Institute COS FUV Spectroscopic Sensitivity Monitoring