J. Kissel

After lots of work on H1 SUS TMSX during this spring's vent of EX (a repair of OSEMs, LHO aLOG 41675, and a physical rotation of the suspended stage to account for the QUAD's now-missing ERM wedge, LHO aLOGs 41942 and 41954), I've taken a full health check to make sure we're ready for doors in the next few days.

All health checks pass with flying colors.

In the transfer functions, you can see the V and P transfer functions are now much more similar in magnitude to other TMTSs, indicating that the repair, recentering, and recalibration has fixed the problems (FRS Ticket 6446).

Also, the OSEM ASDs confirm that Fil and Besty's ground loop checking (LHO aLOG 42007) were indeed successful: although we see the typical mechanical resonances of a Locked ISI between 100-1000 Hz, the overall noise floor is about at the expected BOSEM noise floor, and while > 1 kHz "humps" exist, there are no humps that are particularly worse than what we've see before. There're also no obvious combs.

Great work Team TMTS!

Data Templates:
Amplitude Spectral Density check for Ground Loops:
/ligo/svncommon/SusSVN/sus/trunk/TMTS/H1/TMSX/SAGM1/Data/
    2018-05-30_1557_H1SUSTMSX_M1_OSEM_ASDs.xml

/ligo/svncommon/SusSVN/sus/trunk/TMTS/H1/TMSX/SAGM1/Data/
    2018-05-30_1520_H1SUSTMSX_M1_WhiteNoise_L_0p02to50Hz.xml
    2018-05-30_1520_H1SUSTMSX_M1_WhiteNoise_T_0p02to50Hz.xml
    2018-05-30_1520_H1SUSTMSX_M1_WhiteNoise_V_0p02to50Hz.xml
    2018-05-30_1520_H1SUSTMSX_M1_WhiteNoise_R_0p02to50Hz.xml
    2018-05-30_1520_H1SUSTMSX_M1_WhiteNoise_P_0p02to50Hz.xml
    2018-05-30_1520_H1SUSTMSX_M1_WhiteNoise_Y_0p02to50Hz.xml

(Note, the ISI was locked for these measurements.)

The transfer function templates needed some work:
    - Decreased the resolution from 0.01 to 0.02 BW, which is a new standard for non-QUAD suspensions, since the resonances can all be resolved and it improves the spped of characterization by a factor of 2.
    - Some prior templates (about half, but not all, strangely) had incorrectly been saving the OSEMINF_IN1 channels instead of the OSEMINF_OUT_DQ. This messes up the post processing scripts, and meant that we'd been plotting the OSEM basis incorrectly for some time (though the last time anyone measured this SUS in its entirety was back in Aug 2017).
    - For some DOFs where coherence around resonances was a struggle, I added a few resonant gain boosts to the excitation filter. 

Note to self -- next time you measure the TMTSs, improve the processing scripts to plot the phase, like recently you've done for other suspension types.