Continuing my work from last night on getting the magnetic injection suite ready for O4, I've finished tuning all frequency bands on all seven coils we'd like to run injections through. The exception to this is the EY VEA coil, as I could not see a response in the nearby magnetometers when trying to drive it. We do not yet have remote control over the AC Pulizzi unit for this coil, so someone may need to manually turn it on until we have that ability.

Following a discussion with Robert this evening, I tuned an additional high frequency band (1kHz-4kHz) on each coil in hopes to reach the Nyquist frequency of the magnetometers, although we're not sure if this will prove useful as it's challenging to drive the coils enough in this frequency band to get a response above background. I populated the appropriate filter banks in the PEMCS, PEMEX, and PEMEY front-ends with the 6th-order elliptical bandpass filter and 40db attenuation we use for the other injections and loaded them.

After tuning the coils I could, I added the injection states into the PEM_MAG_INJ guardian for these new high frequency injections and ran the magnetic injection suite with 128 second injection duration. All 18 injections (plus time for a background taken beforehand) took a total of 47 minutes and ran from 05:44 to 06:31 UTC. The injection log for this run is:

/ligo/www/www/exports/pem/WeeklyMagneticInjection/logs/1367991892.txt

The injection suite is not currently set to run automatically on Tuesday morning, but one could set it by simply requesting INJECTIONS_COMPLETE in the PEM_MAG_INJ guardian. The start time is read in from the associated injparams.py file, so one should look there if they'd like to change the start time of the injections.