Jeff Kissel noticed a ~300hz line in the glitch gram on the control room wall. Seems like it started with this lock but has been getting worse. Screen shots attached.
Looks like the peaks from the PSL periscope. See this alog for some details. I don't think we need to do anything about them right now, since it seemed like the IFO was hard to lock. I haven't seen them causing many problems for the search.