Earlier reports Convert Day of Year

The Hubble Space Telescope

Unlocking the Secrets of the Universe

Daily Report #5777

Period Covered:
08:00 pm May 7, 2012 - 07:59 pm May 8, 2012
(DOY 129/0000z - 129/2359z)

Flight Operations Summary

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

13328 - SCI: TDF up late for REAcq (2,1,2)@127/1754z

13329 - SCI:GSAcq (2,1,1) resulted in Fine Lock Backup (2,0,2)@128/0524z



FGS GSAcq		8		8
FGS REAcq		8		8
OBAD with Maneuver	6		6

Flash Report: Part 2 of the COS NUV anomalous shutdown recovery was successfully completed today at 
Part 2 entailed a slow, partial ramp-up of the MCP high voltage. The ramp-up was commanded in four 
phases, stopping at plateaus of -500V, -1000V, -1500V, and -1750V. There were four minute waits at 
each plateau. Then the PC voltage was ramped to -50V. An 1800 second time tag dark images was taken 
during the ramps. Once the HV ramps were completed software global monitor were commanded to look 
at X, Y, Z, W, OR, EV, and VE counts for one minute each during a dark time-tag exposure.   
A review of all of the relevant NUV telemetry was done. All of the currents and voltages were as 
expected. The events types and rates were extracted and are consistent with those collected during 
At 129/15:58 the NUV was returned to hold and COS event flag 2 was set. Event flag 2 will be 
cleared after the science data is analyzed; the dark images should be available for analysis at the 
institute by 130/00:00. After the all clear is given by the COS Science Team and OR will be issued 
to clear event flag 2, I expect this to happen around 130/01:00. The FOT has been notified and is 
ready to execute the OR 1st thing Wednesday morning, likely during the 130/12:13 forward support.  
Part 3 of the COS NUV anomalous shutdown recovery is scheduled for 130/15:34 - 16:51, it is similar 
to part2 except the detector will be ramped to it nominal operating voltages  

Program Principal Investigator Program Title
Science Observations Scheduled
12192 James Lauroesch, University of Louisville Research Foundation, Inc. A SNAPSHOT Survey of Interstellar Absorption Lines
12455 Marc Postman, Space Telescope Science Institute Through a Lens, Darkly - New Constraints on the Fundamental Components of the Cosmos
12484 Gregory Schwarz, American Astronomical Society STIS UV spectroscopy of a bright nova during its super soft X-ray phase
12488 Mattia Negrello, Open University SNAPshot observations of gravitational lens systems discovered via wide-field Herschel imaging
12549 Thomas Brown, Space Telescope Science Institute The Formation History of the Ultra-Faint Dwarf Galaxies
12550 Daniel Apai, University of Arizona Physics and Chemistry of Condensate Clouds across the L/T Transition - A SNAP Spectral Mapping Survey
12608 Moire Prescott, University of California - Santa Barbara Small-scale Morphology and Continuum Colors of Giant Lya Nebulae
Calibration Observations Scheduled
12689 Tiffany Borders, Space Telescope Science Institute WFC3 UVIS CCD Daily Monitor
12695 Michael Dulude, Space Telescope Science Institute IR Dark Monitor
12724 Thomas Wheeler, Space Telescope Science Institute COS NUV Detector Recovery After Anomalous Shutdown
12731 Pey Lian Lim, Space Telescope Science Institute ACS Internal CTE Monitor and Short Darks
12742 Justin Ely, Space Telescope Science Institute CCD Dark Monitor Part 2
12744 Justin Ely, Space Telescope Science Institute CCD Bias and Read Noise Monitor-Part 2
12803 Knox Long, Space Telescope Science Institute Guard Darks