- Adjusted the PMC alignment
- Adjusted the IMC length offsets for the MC servo and the FSS servo
- Adjusted the MC alignment. Ran
/opt/rtcds/caltech/c1/scripts/MC/WFS/WFS_FilterBank_offsets
- The Yarm servo was oscillating. Reduced the servo gain from 0.2 to 0.08.
- AS Camera & AS port alignment was adjusted. Now the spot is at the center of the AS camera.
- Cleaned up the ASC offsets on the suspensions (i.e. C1:SUS-***_(PIT|YAW)_OFFSET) by replacing them by the BIAS adjustment.
- Saved the alignment values
- Locked the PRMI with SB with REFL55I for PRCL and AS55Q for MICH
- Aligned the PRM, then checked the alignment of the REFL PDs
- The best POP110I was 500cnt.
- Found REFL165 output was disconnected. It is now restored.
- Used the LSC lockins to figure out the demod phases and the signal amplitudes (relative)
PRCL: 100cnt -> PRM 567.01Hz
Signal in demod Q ch were minimized
REFL11I -19.2deg demod I, Lockin I out (C1:CAL-SENSMAT_PRCL_REFL11_I_I_OUTPUT) 12.6 cnt
REFL33I +130.4deg 1.70cnt
REFL55I +17.0deg 2.30cnt
REFL165I -160.5deg 27.8cnt
MICH: 1000cnt -> ITMX(-1) & (ITMY +1.015 => Minimized the signal in REFL11I to obtain pure MICH)
REFL11I +0.0 REFL11Q +0.119
REFL33I +0.023 REFL33Q -0.012
REFL55I +0.023 REFL55Q -0.113
REFL165I +0.68 REFL165Q +0.038
It seems that REFL165 has almost completely degenerated PRCL and MICH.
- Try to replace ITMX/Y with BS (+0.16) / PRM (-0.084)
ITMX(-1)/ITMY(+1.015) actuation was cancelled by BS (+0.16). This introduces PRCL in REFL11I. This was cancelled by PRM (-0.084)
REFL11I +0.0 REFL11Q +0.13
REFL33I -0.012 REFL33Q 0.025
REFL55I +0.041 REFL55Q -0.45
REFL165I +0.69 REFL165Q +/-0.02
Again, It seems that REFL165 has almost completely degenerated PRCL and MICH.
Locking info:
PRCL:
[Signal source] REFL11I (-19.2deg) x 0.16, OR REFL33I (+130.4deg) x 2.0, OR REFL55I (+17.0deg) x1.0, OR REFL165I (-160.5deg) x0.05
[Trigger] POP110I(-81deg) 100/10, FM trigger 35/2, delay 0.5sec FM2/3/6/9
[Servo] FM4/5 always on. G=-0.02, Limitter ON
[Output] PRM x+1.00
MICH:
[Signal source] AS55Q (-5.5deg) x 1, OR REFL11Q x 0.25, OR REFL55Q x-0.06
[Trigger] POP110I 100/10, FM trigger 35/2, delay 5sec FM2/3/9
[Servo] FM4/5 always on. G=-10, Limitter ON
[Output] ITMX -1.0 / ITMY +1.0 (or +1.015), OR PRM -0.084 / BS +0.16
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