TM      = Average of TM1-6. Six mirror temo Sensors, deg C

DewPt1  = Dew point sensor in mirror cell

MC_TGO  = Mirror cooling glycol temp (OUT), deg C

MC_TAO  = Mirror cooling air temp out, deg C

MC_TG   = Mirror cooling glycol temp (IN), deg C

MC_ACT  = Mirror cooling actuator control volts 0=clse 1=open

MC_FAN  = Mirror cooling fan control 0=clse 1=open

MC_HEAT = Mirror cooling heater control 0=clse 1=open