Here are the results of the June 27 2023 mod depth up down test 60 W:
Power-recycling gains for sidebands and carrier
9 MHz PRG = 68.7
45 MHz PRG = 30.2
Carrier PRG = 50.6
Reflection ratios for sidebands and carrier
9 MHz reflection ratio = 0.219
45 MHz reflection ratio = 0.214
Carrier reflection ratio = 0.064
It appears the carrier PRG and PRG9 is recovered significantly compared to 75 W alog 69023, or 78 W alog 68696.
The PRG45 is also higher, but it's hard to trust that POP A LF 45 is telling us anything super robust with < 1% of the power there coming from 45.
The carrier PRG is higher at 60 W than at 25 W in alog 68696 after MOVE_SPOTS, which is unusual but the total PRG is also higher now (Total PRG = 50.6).
Table of relative powers:
Channels | 9 MHz | 45 MHz | Carrier |
---|
H1:IMC-PWR_IN_OUT16 | 0.013 | 0.015 | 0.971 |
H1:IMC-IM4_TRANS_NSUM_OUT16 | 0.013 | 0.015 | 0.972 |
H1:LSC-REFL_A_LF_OUT16 | 0.042 | 0.046 | 0.912 |
H1:LSC-REFL_B_LF_OUT16 | 0.040 | 0.043 | 0.917 |
H1:LSC-POP_A_LF_OUT16 | 0.018 | 0.009 | 0.973 |
H1:ASC-POP_A_NSUM_OUT16 | 0.017 | 0.009 | 0.974 |
H1:ASC-POP_B_NSUM_OUT16 | 0.017 | 0.009 | 0.974 |
H1:ASC-AS_C_NSUM_OUT16 | 0.164 | 0.499 | 0.337 |
H1:ASC-OMC_A_NSUM_OUT16 | 0.167 | 0.547 | 0.286 |
H1:ASC-OMC_B_NSUM_OUT16 | 0.177 | 0.620 | 0.203 |
H1:ASC-X_TR_A_NSUM_OUT16 | 0.005 | 0.007 | 0.988 |
H1:ASC-X_TR_B_NSUM_OUT16 | 0.005 | 0.007 | 0.988 |
H1:ASC-Y_TR_A_NSUM_OUT16 | 0.005 | 0.007 | 0.988 |
H1:ASC-Y_TR_B_NSUM_OUT16 | 0.005 | 0.007 | 0.988 |