Sheila, Hang, Patrick, TVo

The ALS was particularly noisy tonight so the ISC_LOCK guardian had trouble finding IR on the Y-ARM.  To get around this, we had to manually shift the ALS-DIFF OFFSET to get some resonant flashing.

We saw that the Diffracted Power % in the ISS was too low and adjusted the ISS Second Loop following the instructions of aLOG-31245 and saw that the IMC would not stay locked when turning on the second loop.  After this procedure, the IMC wouldn't stay locked for more than 5 minutes at a time until Sheila added 6dB to the PSL-FSS_COMMON_GAIN and now it seems to be more stable. 

Hang was able to lock DRMI_1f for his 72 MHz measurements after the change in the common gain but an 8.0 Earthquake off the coast of Meixco broke the lock.