Reports until 12:13, Friday 19 April 2019
H1 General
jeffrey.bartlett@LIGO.ORG - posted 12:13, Friday 19 April 2019 (48618)
Ops Day Mid-Shuft Summary
   Good first half of the shift. IFO has been locked for 25 hours, with a range between 106 and 111Mpc. 

   I dropped it out of Observing for 5 minutes (16:20 (08:20) to 16:25 (08:25)) to damp ETM-X violin mode 13. Damping was effective, and no additional violin modes have rung up. 

   Weather is showing the effects of a cold front moving through to the northeast of the area. As the side bands pass through the wind has piped up to 8 to 12 mph, with gusts getting close to 20mph. Microseism is following the wind. 

   PEM injections are scheduled to start at 21:00 (14:00). 

   No other issues or problems to report.