Activity Log: All Times in UTC (PT)

00:00 (16:00) Take over from TJ
02:40 (18:40) First of four large (mag 6.9 to 4.9) EQs in Chile. All four arrived within 30 minutes.
05:00 (21:00) Start initial alignment
06:19 (22:19) IFO locked at NOMINAL_LOW_NOISE, 22.1w, 78Mpc
06:24 (22:24) Cleared SDF and set intent bit to Observing
06:56 (22:56) Lockloss – mag 5.2 EQ on Mid-Pacific Ridge
07:30 (23:30) Relocked at NOMINAL_LOW_NOISE, 22.2w, 78mpc
	      No SDF differences flagged – Set Intent bit to Observing
08:00 (00:00) Hand off to Travis


End of Shift Summary:

Title: 11/10/2015, Evening Shift 00:00 – 08:00 (16:00 – 00:00) All times in UTC (PT)

Support: Keita, Betsy, Hugh, Vern, Marissa 

Incoming Operator: Travis

Shift Summary: Had problems locking the ALS green, mostly in X. Keita found the BSC-9 ISI had a large swing on the X platform location. (See #23293). The motion slowed down, and I was able to realign the ALS green for both arms. Tried relocking. Made it to DARM_1F before 4 large EQs hit Chile. Seismic motion is very high right now (See #23296). Waiting for things to settle and will try relocking. 

After seismic activities settled down to below 0.1 um/s and microseism dropped to 0.3 – 0.2 um/s, ran initial alignment. The IFO was locked at NOMINAL_LOW_NOISE. Cleared up several SDF issues, and set the intent bit Observing. Wind at the CS is a moderate breeze (13 – 18 mph) and light to gentle (4 – 12) at the ends and mids. 

Lockloss due to Mid-Pacific Ridge Earthquake. Seismic activity has rung up a bit, but is quickly coming down. Microseism did not change from 0.3 um/s. Wind is up to a fresh breeze (19 – 24 mph) in the CS. The wind at the ends and mids is still light to gentle breeze (4 – 12 mph). Will attempt to relock without doing an initial alignment.

IFO relocked easily without the need for a realignment. Back to Observing