I did two things to prep for ER13:

1. I updated the IFO node exclude list. (List below, plus all of the SEI configuration nodes)
2. Added a few lines in ISC_LOCK.py to attempt to turn the Observation Bit ON between the hours of midnight and 8am local time. The idea here is that if we manage to make it to Nominal Low Noise when there is no one on site, it would be nice to have the bit turned on. The problem is that if the IFO node does not give the OK that all other nodes are ready, then we can't flip the bit anyway. (For tonight, I have the actual channel call commented out to test this, but will uncomment it tomorrow if all goes well.)
   1. This will also change the Observatory Mode to Observing in NLN and then back to Commissioning in DOWN. But again, only between the hours of midnight and 8am local.
   2. If a commissioner is working during these hours, they will need unset the Observation Ready Bit and change the Observatory Mode.

EXCLUDE_NODES = [
    'BRSX_STAT',
    'BRSY_STAT',
    'BOUNCE_MODE_DAMPING',
    'CDS_CA_COPY',
    'DIAG_MAIN',
    'HIGH_FREQ_LINES',
    'INJ_TRANS',
    'IMC_LOCK',
    'ROLL_MODE_DAMPING',
    'SEI_CONF',
    'SQZ_SHG',
    'SQZ_OPO',
    'SQZ_PLL',
    'SQZ_FREQ',
    'SQZ_CLF',
    'SQZ_LO',
    'SQZ_BEATNOTE',
    'SQZ_LOCK',
    'SR3_CAGE_SERVO',
    'SUS_CONFIG',
    'SUS_OPO',
    'SUS_PI',
    'TCS_RH_MON',
    'VIOLIN_DAMPER',
    ]