Earlier reports Convert Day of Year

The Hubble Space Telescope

Unlocking the Secrets of the Universe

Daily Report #5805

Period Covered:
08:00 pm June 4, 2012 - 07:59 pm June 5, 2012
(DOY 157/0000z - 157/2359z)

Flight Operations Summary

This report was generated by the HST Automated Report System @2012-06-06 17:02:00 GMT

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




FGS GSAcq		4		4
FGS REAcq		6		6
OBAD with Maneuver	5		5

The COS FUV Special Recovery activities (proposal 12810 visits 18 - 19) successfully completed 
today without incident.  The FUV was ramped to the 4th HV plateau (-5199V/-5152V (172/169)) with 
the QE grid off, no elevated counts or HV current transients were observed in the engineering 
telemetry during or after the ramp.  The STScI and MOSES2 Engineering Teams have examined the 
relevant telemetry and confirmed all voltages, currents and temperatures were as expected. The 
voltage and current monitors matched the signatures seen in SMOV.  The COS Science Team at STScI 
has examined the science data and DCE memory dumps and everything is nominal.  No HV current 
transients or unexpected elevated count rates were observed in the DCE memory dumps. The science 
data consisted of 2 sets of dark and wavecal exposures. The exposures were collected immediately 
after ramping to HVNom (172/169) and an hour later at the same HV level. Comparisons with SMOV data 
taken with the QE grid on indicates comparable behavior with the grid off when the aging of the 
detector and temporal fluctuations are considered.  The Engineering and Science Teams have given a 
"Go" to proceed with visit 20 and 21. Visits 20 and 21 are scheduled for Thursday June 7 (DOY 159). 
 The COS event flag 3 was cleared @157/17:54 via OR 19265   -jb   

Program Principal Investigator Program Title
Science Observations Scheduled
12461 Adam Riess, The Johns Hopkins University Supernova Follow-up for MCT
12537 David Ehrenreich, Universite de Grenoble I Venus observed as an extrasolar planet
12575 Anthony Gonzalez, University of Florida New Constraints on Intragroup Light and the Baryon Budget in Galaxy Groups
12591 Elena Gallo, University of Michigan A Chandra/HST census of accreting black holes and nuclear star clusters in the local universe
Calibration Observations Scheduled
12689 Tiffany Borders, Space Telescope Science Institute WFC3 UVIS CCD Daily Monitor
12690 Cheryl Pavlovsky, Space Telescope Science Institute UVIS Gain Stability
12695 Michael Dulude, Space Telescope Science Institute IR Dark Monitor
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
12784 Elena Sabbi, Space Telescope Science Institute - ESA Characterization of UVIS Traps Via Charge-Injected Biases
Other Observations Scheduled
12810 Thomas Wheeler, Space Telescope Science Institute COS/FUV Special Recovery