[Jenne, RyanS, JoeB remote at LLO]
We've started the 45 min stochastic magnetic injection set after having recently reacquired lock.
We turned on the amplifier in the LVEA by clicking the ON button on H1:CDS-PULIZZI_ACPWRCTRL_VERTEX0_OUTLET_1 (sitemap -> CDS -> CDS AC Power Control), then put in the same gps time (1387146396) as LLO into the script from userapps/pem/h1/scripts/inject_mag_10to40.py, which is using waveform = 'CorrMagInj_timestream_2700sec.dat'.
The attached screenshot shows the vertex magnetometers and a (not necessarily well calibrated) version of DARM with the references before the injections, and the 'live' traces during a time of the injection.
This will run for about 45 mins, then we'll turn off the amplifier and go to Observing for the night.
This is finished. I turned off the amplifier, and reset the gain H1:PEM-CS_GDS_0_GAIN back to its nominal value of 1.0, then RyanS took us to Observing.
Injection was succesfull and is coherently recovered in magnetometers as well as h(t).
Fig1 &2: Hx magnetometer - Lx magnetometer: Coherence/CSD, before, during and after injection
Fig3 &4: H strain - Lstrain: Coherence/CSD, before, during and after injection
Channels used:
Hx mag = H1:PEM-CS_MAG_LVEA_VERTEX_X_DQ
Lx mag = L1:PEM-CS_MAG_LVEA_VERTEX_X_DQ
H strain =H1:GDS-CALIB_STRAIN
L strain = L1:GDS-CALIB_STRAIN
Times used:
Before: start: 1387126878 (Dec 20 - 17:01:00 UTC) - duration: 43min, 10 sec fft, 50% overlap (since no good period of coincident lock just before injection, I took the last part of previous lock)
Injection: start gps = 1387146456 (Dec 20 - 22:27:18 UTC) - duration: 43min, 10 sec fft, 50% overlap
After: start: (Dec 21 - 02:01:00 UTC) - duration: 43 min, 10 sec fft, 50% overlap (since no good period of coincident lock just after injection, I took the first part of next lock)
