Important Channels for iKAGRA

Channel Name

Mar 25 9:00 - Mar 31 17:00

Apr 11 9:00 - Apr 12 13:00

Apr 12 16:10 -

K1:GRD-PSL_STATE_N

PMC guardian state. If this is 1000, PMC is locked.

Same

Same

K1:PSL-PMC_TRANS_DC_OUT_DQ

PMC transmitted power. If this is ~6, PMC is locked.

Same

Same

K1:PSL-PMC_MIXER_OUT_DQ

PMC error signal(???).

Same

Same

K1:PSL-PMC_FAST_MON_OUT_DQ

PMC feedback signal to PMC PZT.

Same

Same

K1:PSL-PMC_SLOW_MON_OUT_DQ

PMC feedback signal to laser temperature.

Same

Same

Channel Name

Mar 25 9:00 - Mar 31 17:00

Apr 11 9:00 - Apr 12 13:00

Apr 12 16:10 -

K1:GRD-IMC_LOCK_STATE_N

IMC guardian state. If this is 1000, IMC is locked.

Same

Same

K1:IMC-MCL_TRANS_OUT_DQ

IMC transmitted power. If this is ~0.4, IMC is locked.

Same

Same

K1:IMC-MCL_SERVO_OUT_DQ

IMC feedback signal to MCE and MCI.　MCI feedback was added on 4/12 4:44 UTC.

Same

Same, but feedback signal is also fedback to MCi.

Channel Name

Mar 25 9:00 - Mar 31 17:00

Apr 11 9:00 - Apr 12 13:00

Apr 12 16:10 -

K1:GRD-MICH_LOCK_STATE_N

MICH guardian state. If this is 1000, MICH is locked. Calibration lines are injected.

Same

Same

K1:LSC-REFL_PDA1_DC_OUT_DQ

Fringe signal in DC. Used for the error signal.

Same, but not used for the error signal.

Same

K1:LSC-REFL_PDA1_RF17_I_ERR_DQ

N/A

Fringe signal in RF (demodulated in I phase). Used for the error signal.

Same, but not used for the error signal. Was not DQ channel before Apr 14 13pm (use I_OUT_DQ instead; IQ rotation angle: -15 deg).

K1:LSC-REFL_PDA1_RF17_Q_ERR_DQ

N/A

Fringe signal in RF (demodulated in Q phase).

Same, but used for the error signal. Was not DQ channel before Apr 14 13pm (use Q_OUT_DQ instead; IQ rotation angle: -15 deg).

K1:LSC-MICH_OUT_DQ

Feedback signal to ETMs.

Feedback signal to ETMs before gain adjustment from UGF servo.

Same

K1:LSC-UGF_SERVO_OUT_DQ

N/A

Gain adjustment of the feedback signal for UGF servo.

Same

K1:LSC-MICH_ERR_CAL_OUT_DQ

Roughly calibrated GW signal in m/rtHz.

Same

Same

K1:LSC-MICH_CTRL_CAL_OUT_DQ

N/A

Online-calibrated GW signal in nm/rtHz.

Same

K1:LSC-MICH_LKIN_CAL(1|2)_A_(REAL|IMAG)_OUT_DQ

Demodulated feedback signal after calibration lines injection. CAL1 for 80 Hz (used for UGF servo), CAL2 for 135 Hz.

Same

N/A

K1:LSC-MICH_LKIN_CAL(1|2)_B_(REAL|IMAG)_OUT_DQ

Demodulated feedback signal before calibration lines injection. CAL1 for 80 Hz (used for UGF servo), CAL2 for 135 Hz.

Same

N/A

K1:LSC-MICH_CAL_A(1|2)_(REAL|IMAG)_OUT_DQ

N/A

N/A

Demodulated feedback signal after calibration line injection. A1 for 80 Hz (used for UGF servo), A2 for 135 Hz.

K1:LSC-MICH_CAL_B(1|2)_(REAL|IMAG)_OUT_DQ

N/A

N/A

Demodulated feedback signal before calibration line injection for UGF servo. B1 for 80 Hz (used for UGF servo), B2 for 135 Hz.

K1:LSC-ACT_DEMOD1_(I|Q)_OUT_DQ

N/A

N/A

Demodulated error signal for ETMX actuator efficiency monitor (111 Hz calibration line).

K1:LSC-ACT_DEMOD2_(I|Q)_OUT_DQ

N/A

N/A

Demodulated error signal for ETMY actuator efficiency monitor (113 Hz calibration line).

K1:LSC-ACT_DEMOD3_(I|Q)_OUT_DQ

N/A

N/A

Demodulated error signal for BS actuator efficiency monitor (111 Hz calibration line).

K1:LSC-IMT_QPDA1_(PIT|YAW)_OUT_DQ

QPD signal monitoring IMMT1 transmitted beam, calibrated in um.

Same

Same

Channel Name

Mar 25 9:00 - Mar 31 17:00

Apr 11 9:00 - Apr 12 13:00

Apr 12 16:10 -

K1:VIS-$(OPTIC)_TM_OPLEV_$(DOF)_OUT_DQ

Oplev signal for suspensions in um. $(OPITC)=MCI,MCO,MCE,PR3,BS,ETMX,ETMY and $(DOF)=PIT,YAW.

Same

Same

Channel Name

Mar 25 9:00 - Mar 31 17:00

Apr 11 9:00 - Apr 12 13:00

Apr 12 16:10 -

K1:PEM-$(PLACE)_SEIS_$(DIR)_SENSINF_OUT_DQ

N/A

Seismometer signal in m. $(OPTIC)=BS,EX,EY and $(DOF)=NS,WE,Z. for $(OPTIC)=MCF, $(DIR)= only Y.

Same

K1:PEM-$(PLACE)_SEIS_$(DIR)_BLRMS_LOW_OUT_DQ

N/A

Seismometer signal filtered for earthquake bands (30-100mHz).

Same