Earlier reports Convert Day of Year

The Hubble Space Telescope

Unlocking the Secrets of the Universe

Daily Report #5552

Period Covered:
08:00 pm September 25, 2011 - 07:59 pm September 26, 2011
(DOY 269/0000z - 269/2359z)

Flight Operations Summary

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

13032 - SCI: GSAcq (1,2,2) Loss of lock while guiding@267/1334z



FGS GSAcq		12		12
FGS REAcq		5		5
OBAD with Maneuver	10		10


Program Principal Investigator Program Title
Science Observations Scheduled
12166 Harald Ebeling, University of Hawaii A Snapshot Survey of The Most Massive Clusters of Galaxies
12202 Gregory Sivakoff, The University of Virginia Wide-Field Hubble Observations of NGC 1023: Testing the Origin of Low-Mass X-ray Binaries in a Lenticular Galaxy
12210 Adam Bolton, University of Utah SLACS for the Masses: Extending Strong Lensing to Lower Masses and Smaller Radii
12322 Kailash Sahu, Space Telescope Science Institute Detecting Isolated Black Holes through Astrometric Microlensing
12448 Arlin Crotts, Columbia University in the City of New York Towards a Detailed Understanding of T Pyx, Its Outbursts and Shell
12452 Marc Postman, Space Telescope Science Institute Through a Lens, Darkly - New Constraints on the Fundamental Components of the Cosmos
12679 Adam Riess, The Johns Hopkins University Luminosity-Distance Standards from Gaia and HST
12725 Harold Weaver, The Johns Hopkins University Applied Physics Laboratory A Deep Search for Satellites in the Pluto System: Providing Critical, Safety-of-Flight Support to NASA's New Horizons Mission
Calibration Observations Scheduled
12342 Tiffany Borders, Space Telescope Science Institute WFC3 UVIS CCD Daily Monitor
12349 Michael Dulude, Space Telescope Science Institute IR Dark Monitor
12380 Bryan Hilbert, Space Telescope Science Institute Guard Darks
12387 David Golimowski, Space Telescope Science Institute CCD Hot Pixel Annealing
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
12415 Wei Zheng, The Johns Hopkins University MAMA Dark Monitor
12427 David Golimowski, Space Telescope Science Institute CCD Daily Monitor {Part 3}
12709 Cheryl Pavlovsky, Space Telescope Science Institute UVIS and IR Earth Flats