Reports until 15:02, Thursday 11 July 2024
H1 ISC
sheila.dwyer@LIGO.ORG - posted 15:02, Thursday 11 July 2024 (79039)
new notch filters in quads

TJ, Jennie W and I were preparing to test A2K decoupling at 12Hz, to compare to our results at 20-30Hz.  For this reason we added a notch to ISCINF P and Y for all 4 quads at 12Hz.  We had an unexplained lockloss while we were editing the notch filter, so we've loaded these in preparation for testing A2L decoupling next time we have a chance.