[Guo chin, Yuzu]
I made the histogram to count the phenomena before the lockloss between 2025/02/10 and 04/21.|
Recently, the number of the lockloss related to the IMC oscillation is the dominant phenomena. After 4/3, the lockloss related to the oscillation (saturation) of OMC drastically was mitigated.

This time, I focused on the lockloss from OBSERVATION_WITHOUT_LINES. Note that I counted the number manually. It's possible to shift the number a bit.

Important date for commissioning

• 2/19 : 10 W operation started (klog#32748) (klog#32756)
• 4/3: engaging whitening filters for GAS to mitigate the 20 Hz resonance kick by DAC noise (klog#33197)