Maintenance will be performed on,,, and on the morning of Tuesday 11th August 2020, starting at approximately 9am PDT. It is expected to take around 20 minutes and there will be a short period of downtime (less than five minutes) towards the end of the maintenance window. Please direct any comments, questions, or concerns to



Repo to collect all important information, circuit schematics, controls schematics, transfer function measurements, and noise budget for ALS at 40m.