Reports until 15:15, Sunday 17 May 2015
H1 ISC (DetChar, GRD)
jeffrey.kissel@LIGO.ORG - posted 15:15, Sunday 17 May 2015 - last comment - 15:51, Sunday 17 May 2015(18489)
H1 has been locked stably at ~43 [Mpc] for 13 hours and counting!
J. Kissel, R. Schofield

I'm not exactly sure when Evan left last night, but this 23 [W] lock stretch has lasted for 13+ hours thus far (guardian says the lock stretch reached ful LSC_FF at 08:50:27 UTC, which concurs with the arm cavity power -- see attached). Regrettably, Evan didn't hit the Undisturbed bit, but we should consider almost all of the hours this lock stretch entirely undisturbed until Robert goes in. At worst, the landscaping crew had been driving near the building. We've had no substantial Earthquakes, and the wind has stayed around 10 [mph].

He's delaying as long as he can, but Robert has to pack up his HAM6 shaker set up eventually, so that will likely be the cause of the lockloss if the Earth doesn't do it for us. 

C'mon galactic supernova!!

P.S. @DetChar and @CDS -- we REALLY need a way to trend the inspiral range in the control room (that doesn't require matlab or python). Sooner or later, we're going to compute the range in the front end (like LLO already does) if not!
Images attached to this report
Comments related to this report
jeffrey.kissel@LIGO.ORG - 15:45, Sunday 17 May 2015 (18490)SEI
Robert began taking down his setup entering the LVEA at 15:39 PDT, or 22:39 UTC). In fact his first entry *didn't* take the IFO out of lock (and he mentioned he wasn't trying to be careful)! Go team SEI!!
jeffrey.kissel@LIGO.ORG - 15:51, Sunday 17 May 2015 (18491)
As Evan mentioned, he left the ITM Pitch Optical Lever damping loops on during this lock stretch, which is why we don't suffer from the 0.4 [Hz] opto-mechanical instability. I attach a couple of screen shots documenting the settings and effects.

The first two attachments are of the control signal for the optical levers (apologies -- not calibrated in to displacment). The third attachment shows the settings for the two ITMs OLDAMP control filters (remember the optical lever control signal is fed to the PUM / L2 stage). The last attachment shows the coherence with DARM.
Images attached to this comment