[Gabriele, Louis, Evan H., Swadha]

After tuning the LSC feedforward and updating the calibration, we took a DARM quiet time to compare with the O4a sensitivity. With the updated calibration, our range sits around 140 Mpc. The attached screenshot shows a comparison between cal delta L on January 7th to today. Louis walked me through updating the DARM calibration for both traces to make sure it was accurate. I chose Jan 7 because it appeared to be a time of a recent, decent sensitivity in O4a (around 160 Mpc). Our low frequency noise does not appear to have changed significantly. The reduction in range seems to come from the mid-range region where adjustments in the squeezing would probably help.

Template saved in /ligo/home/elenna.capote/DTT/DARM_compare_O4a_b.xml