[JeffK, Jenne]

We went through and checked on the SDF diffs right after lockloss from NomLowNoise.  There had been a few accumulated over the last few weeks from commissioning.

• h1alsex
  • Tidal redtrig thresholds: these get set to the values 10 and 30 in the ISC_LOCK prep_for_locking state, so I've accepted them. I don't think this is a shared sdf between safe and Observe, so hopefully this won't have caused sdf diffs when we get to NomLowNoise.
• h1alsey
  • Tidal redtrig thresholds: same story as h1alsex, accept
  • ALS-Y_PZT2_TRIG threshold: This was lowered to 0.3 so that the als auto alignment would be more assured to come on, so that the IFO would relock.  This makes the Yarm have the same value as the Xarm, and it's been fine since Nov 28th, so should be fine to accept long term. (alog 53549)
• h1lsc
  • REFL_A_RF9 I&Q tramps: Not sure why they had been temporarily set to 1 sec, but accepting the value of 30 sec as set by guardian which matches all other LSC RF PDs.
  • POP_A_RF45 offsets: Dark offsets from Oct 24th, probably done while recommissioning the IFO; accepting
  • PRCLFF gain: accepting as set by guardian (alog 53369)
  • SRCL1 offset: accepting as this is set by guardian to the new value (alog 52861)
  • trigger matrix 10_17: accepting the IFO lockloss trigger.  Looks now at POP_A_DC_OUT. 
  • IMC-MCL_FM trigger thresholds: leaving alone.  These are adjusted by guardian (IMC guardian probably), and I think that the IMC cycled some locks after we started looking at SDFs, so I don't know that they should necessarily be accepted. 
• h1asc
  • ADS limit enable switches: accept, as part of our efforts to not lose lock due to ADS loops when we have a glitch.
  • ADS limit values: accept, as part of our efforts to not lose lock due to ADS loops when we have a glitch.
  • ASC-AS_C offsets: been this way since Nov1, probably from recommissioning the IFO. Accepting.
  • SRC 1 and SRC 2 smooth offsets: been this way since Nov1, probably from recommissioning the IFO. Accepting.
• Other SDFs are being left alone since those models share snapshots for safe/down and Observing.