Earlier reports Convert Day of Year

The Hubble Space Telescope

Unlocking the Secrets of the Universe

Daily Report #5310

Period Covered:
07:00 pm January 26, 2011 - 06:59 pm January 27, 2011
(DOY 27/0000z - 27/2359z)

Flight Operations Summary

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


19001-0 - Venus Observation 3 Patch@27/1721z


FGS GSAcq		10		10
FGS REAcq		9		9
OBAD with Maneuver	8		8

Flash Report 1 of 2: Final Venus Observations  
Operations Request 19001 was successfully performed approximately 027/11:53 - 11:54 to execute 
Macro 1, Section B of IP-219 Venus Observation Macros - Installation and Usage. Macro 1 was created 
to patch the current safemode response from Inertial Hold to Software Sunpoint. The final Venus 
Visit will include two observations occurring around 027/15:17 and 16:53 respectively. Once the 
Venus activities are complete, the safemode responses and sun angle limit will be restored back to 
Inertial Hold and 46 degrees respectively by Macro 2 via Section C approximately 027/17:18.   
Flash Report 2 of 2: Final Venus Observations  
Section C of IP-219 was successfully performed 027/17:21 - 17:22 to active the Post-Venus 
Observation Macro #2 which restored the safemode response back to Inertial Hold and the Sunpoint 
sun-angle limit back to 46 degrees. Both of today's Observations were successful with nominal 
guide-star acquisitions. 

Program Principal Investigator Program Title
Science Observations Scheduled
11579 Alessandra Aloisi, Space Telescope Science Institute The Difference Between Neutral- and Ionized-Gas Metal Abundances in Local Star-Forming Galaxies with COS
12070 Julianne Dalcanton, University of Washington A Panchromatic Hubble Andromeda Treasury - I
12203 S. Stanford, University of California - Davis Rest Frame Optical Spectroscopy of Galaxy Clusters at 1.6 < z < 1.9
12289 J. Howk, University of Notre Dame A COS Snapshot Survey for z < 1.25 Lyman Limit Systems
12433 Kandis Jessup, Southwest Research Institute Coordinated HST, Venus Express, and Venus Climate Orbiter Observations of Venus
Calibration Observations Scheduled
12337 Abhijith Rajan, Space Telescope Science Institute UVIS Internal Flats
12342 Tiffany Borders, Space Telescope Science Institute WFC3 UVIS CCD Daily Monitor
12351 Knox Long, Space Telescope Science Institute IR Persistence 18
12400 Michael Wolfe, Space Telescope Science Institute Dark Monitor Part 1
12402 Michael Wolfe, Space Telescope Science Institute CCD Bias and Read Noise Monitor-Part 1
12424 Rachel Osten, Space Telescope Science Institute COS FUV Spectroscopic Sensitivity Monitoring