Reports until 16:08, Wednesday 08 February 2012
H2 SUS
betsy.weaver@LIGO.ORG - posted 16:08, Wednesday 08 February 2012 - last comment - 13:23, Thursday 09 February 2012(2185)
ETMy SUS alignment work
This afternoon, Rod and Travis checked out the ESD cables, as post fixing and baking test had not been done yet.  Preliminary results indicate the cable is fine.

Then Travis and I worked to align the outstanding Top Main chain BOSEMs, and lower stage OSEMs.  All L0 (Tops) and L2 (PUM) are done.  We ran into issues with L1 (UIM) LR in that the signal is completely flat and the BOSEM is unresponsive to any shadow.  We will disconnect the cable to the problematic LR BOSEM and attach a new BOSEM to the cabling to identify where the problem is...  

Garcia is going to make a round of TFs (last nights were problematic) tonight via the Top BOSEMs.
Comments related to this report
jeffrey.garcia@LIGO.ORG - 18:17, Wednesday 08 February 2012 (2187)
The OSEM signal for L1 LR has it's ADC counts at 32767, the maximum for the ADC counts range. The PD's output voltage is out of the range of the ADC, meaning we have either more light power from the LED than normally seen or a gain somewhere in the signal chain is set too high.  
betsy.weaver@LIGO.ORG - 13:23, Thursday 09 February 2012 (2193)
Richard confirmed this morning that the cable tested out OK.