Team TCS

After having the ring heaters on last night we put in the CO2 pre loading estimates suggested in alog 43979.

After testing out this initial setting and various other differential lens settings  (Please see attached time series (ignoring the high frequency noise of the Michelson losing lock)) we observed the following: 

1. The contrast defect estimate is about .4% with mich bright around 7200 counts and mich dark around 32 counts.
2. The most optimal contrast defect setting is at about 10 microdiopters positive lensing from the cold state for ITMX and 3 microdiopters of positive lensing from the cold state for ITMY. 
3. When reaching reaching the dark michelson we sill observed some higher order mode content on the ISCT6_AS_AIR camera (please see attached image).