First couple of hours of today addressed the TCSy Chiller which went down over the night.  After that, went through an Initial Alignment and had a few locks.  Unfortunately, later locking attempts would break lock during ASC guardian states (this was probably related to changes Sheila notes in her alog last night); specifics below.

Day's Activities:

• 16:03-17:00:  Addressing TCSy (Corey, Gerardo, Vern)
• 16:31-17:46:  CP4 Work (Chandra)
• 16:44:  Inventory at MY throughout day.(Mark)
• 16:53 -17:05:  Mechanical Room trip (Richard, Patrick)
• ~17:15:  EQ observed (most likely 5.1 from Mexico), seismic taken up to 0.9um/s.  Did not adjust SEI_CONFIG.
• 17:27:  Initial Alignment run
• 19:55:  Hartman table work (Nutsinee)
• Commissioning work in the afternoon around the DC Readout step is currently underway.

ISC Locking Note:

• First few locks after initial alignment were fine, but h1 started to break lock at various midpoints through Guardian States---namely when ASC would drive the SRM off (noted by Kiwamu).  This is related to work from last night (see Sheila's alog)
• To ride through the roughness, you will need to tweak the SRM (in 1.0 um steps) to prevent (1) POP90 (green on front StripTool) from increasing & (2) AS over POP90 deceasing.
• Also need to wait before COIL_DRIVERS to allow bounce/roll/violins to damp out.  

OPS INFO Notes:

PRM ALIGN:  If AS_AIR is flashing, you are not locked, and this is most likely due to a misaligned PRM.  Take ALIGN_IFO to DOWN, & then tweak PRM while looking at AS_AIR.  Then go back to PRM_ALIGN for the alignment.