What a difference a lock makes.  

After 54min, H1 dropped out of lock this morning.  That lock had the TIdal DIAG_MAIN error messages noted earlier (but Tidal looked fine according to Hugh, whom I had on the phone).  The one issue noted was H1:IMC-F_OUT16 diverging.  

Since there were no obvious environmental/seismic reasons for the lockloss, I am blaming the IMC drift here.  And with that, I am submitting my very first FRS Report (FRS#4199) with 0.8hrs Observation Time Lost.

NOTE:  Terramon forecasts a 4.9 EQ from Turkey arriving here in about 20min (18:28UTC/10:28amPST), with motion of a YELLOW 0.15um/s....we'll see how we ride through it.