IFO state : INCREASEING_LAS_POWER
decorator :
@check_io
IMC-CAV_IS_RESONATING ==1
@check_prmi3f
LSC-POP_PDA2_RF90_I_NORM_MON > 0.1
@check_ir_xy
K1:LSC-TR_IR{X,Y}_NORM_OUT_DQ > 0.2
- 1443370013 1st Oct 16:06:35 UTC
No significant ground motion
LSC_LOCK guardian message : 2025-10-02_01:06:36.029711 LSC_LOCK [INCREASING_LAS_POWER.run] USERMSG 0: IMC seems to be unlocked
Fig.1. showed the several PMC-IMC related channels with several guardian state.
As you can see, the
PMC and IMC trans power dropped.
IMC-CAV_IS_RESONATING became 0 and LSC-LOCK state 0
So, my conclusion is PMC (or IMC) locked loss.
- 1443380309 1st Oct 18:58:11 UTC
No significant ground motion
LSC_LOCK guardian message : 2025-10-02_03:58:11.643105 LSC_LOCK [INCREASING_LAS_POWER.run] USERMSG 0: IMC seems to be unlocked
Fig.2. showed the several PMC-IMC related channels with several guardian state.
As you can see, the LSC_LOCK guardian became 0 with IMC guardian became 0, but no significant decreasing of IR trans, pop90, and IMC trans.
After LSC_LOCK guardian became 0, both IMC and PMC trans power became 0, so this lock loss reason is NOT the PMC locked loss.
So, we need to investigate why IMC guardian became 0
- 1443384011 1st Oct 19:59:53 UTC
No significant ground motion
LSC_LOCK guardian message : 2025-10-02_04:59:53.527441 LSC_LOCK [INCREASING_LAS_POWER.run] USERMSG 0: IMC seems to be unlocked
Fig.3. showed the several PMC-IMC related channels with several guardian state.
Similar situation of lock loss1, so I guess PMC or IMC locked loss
- 1443389797 1st Oct 21:36:19 UTC
No significant ground motion
LSC_LOCK guardian message : 2025-10-02_06:36:20.024613 LSC_LOCK [INCREASING_LAS_POWER.run] USERMSG 0: IMC seems to be unlocked
Similar situation with lock loss 2, but different point is PMC guardian state became 0 at the same timing with LSC_LOCK guardian.
We need to investigate more
