OBS (SDF)takahiro.yamamoto - 9:56 Wednesday 21 January 2026 (36184)
Print this reportComment to Changes of observation.snap during post O4c commissioning (35605)This was a troubleshooting for the accidental shutdown of K1TEST0 (see also klog#36183).
k1sdfmanage (Fig.1)
K1:PICO-.*, K1:STEPPER-.*
They are Pico and Stepper history and can be always accepted in safe.snap.
K1:VIS-ITMY_TEMPERATURE_HEATER_SV
It's a setpoint of heater temperature accepted in down.snap.
k1grdconfig
K1:.*_GOOD_.* (Fig.2-8)
Alignment record can be also always accepted in safe.snap.
K1:SYS-LOCKLOSS_.* (Fig.9)
They are information about the latest lockloss. It's just monitored to keep values after the power cycle of the front-end.
K1:CAM-.* (Fig.10)
These are the TCam controller values. I'm not sure monitoring these values in safe.snap is necessary or not because these value are touched not only by Guardian but also various scripts. Anyway they were accepted.
K1:SYS-HWP_.* (Fig.11)
They are the history of HWP rotation. In general, they should be accepted in the state of DOWN on IO guardian. But in this time, they were accepted (and RT model was restarted) in PROVIDING_STABLE_LIGHT state to keep values at that time.
