[JeffK, JimW, Jenne]
In hopes of making some debugging a bit easier, we have updated the safe.snap files in SDF just after a lockloss from NomLowNoise.
We knew that an earthquake was incoming (yay seismon!), so as soon as the IFO broke lock, we requested Down so that it wouldn't advance any farther. Then, we accepted most of the differences so that everything but ISIBS, CS ECAT PLC2, EX ECAT PLC2 and EY ECAT PLC2 (which don't switch between Observe.snap and safe.snap) were green.
Jeff is looking at making it so that the ECAT models switch between safe and observe snap files like many of the other models, so that ISIBS will be the only model that has diffs (21 of them).
Note that if the IFO loses lock from any state other than NLN, we shouldn't expect SDF to all be green. But, since this is the state of things when we lose lock from NLN, it should be safe to revert to these values, in hopes of helping to debug.
After talking with Jeff and Sheila, I have made a few of the OBSERVE.snap files in the target directory a link to the OBSERVE.snap in userapps.
This list includes:
I have also updated the switch_SDF_source_files.py script that is called by ISC_LOCK on DOWN and on NOMINAL_LOW_NOISE. I changed the exclude list to only exclude the h1sysecatplc[1or3] "front ends". The sei models will stay in OBSERVE always just as before. This was tested in DOWN and in NLN, and has been loaded into the Guardian.