MN VER light source <-> MN TILT/LEN light source.
(Both displayed output is 2.5 mW)
After waiting several hours, the temperature became about 23.4 deg.
At this temperature, many glitches detected.
So I changed the target temperature to 25.0 deg.
I will monitor it.
So, I changed the target temperature to 24.5 deg. and check the SUM again.
(ETMY MNV SUM became stable? If so, environment is more important?)
I turned off the heater control for EY MN TILT OpLev for reducing glitches.
EY MN OpLev is so glitchy today (fig1), so we proably need to find the good temperature.
I made a script named search_good_OpLev_temp.py and stored it at /users/ushiba/script/python/.
This script changes the target temperature of temperature control every 0.1 degrees from 23.1 to 24.1.
At each temperature setting, script waits for 1 hour to stabilize the temperature of OpLev light source.
I asked Tanaka-kun to run the script after his work, so I will check the result in the next morning.
Tamaki-kun ran the script and started the search now.
Since MN OpLev is so glithy today, I changed the temperature from23.6 to 23.9 degrees.
Today, So many glithches occurres in EY MN TILT oplev again. so we gave up the today's IFO work...
Not only the glitch rate but also RMS of SUM time series seems more stable now.
