Back to Nominal Low Noise after being out for ~19hours. LLO is still down so Sheila will run the A2L script and then we will clear up the SDF and move on to Observing.
Note: We are currently running with the 45mHz blends in the X and Y directions for all BSC ISI's to cope with the microseism.
Marie's modification of Hang's A2L script ran sucsesfully, and gives us better fits than we had before. Fits are attached. Most of them look good, although ETMY is not a great fit I accepted the new gains anyway. Now that this is working we would like to run this somewhat regularly (about once a day, especially at the begining of lock stretches) for a week or so using single IFO time to track how much our beam spot positions are drifting on the optics. This is covered under WP5552, although we should discuss tomorow how often we are going to do it.
The scripts can be found in userapps/isc/common/scripts/decoup
to check the decoupling, run ./a2l_min.py
when it is done run ./stop_osc.py to clear up SDF diffs. The whole thing takes about 7 minutes.
The script will tell you the names of files where the data is stored for the fits (in the directory /rec).