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Reports until 18:06, Friday 10 July 2015
H1 ISC (SEI)
sheila.dwyer@LIGO.ORG - posted 18:06, Friday 10 July 2015 (19560)
High wind DRMI

Sheila, Stefan, Evan, Nic

Today we've had winds around 25 mph most of the day, now the gusts are approaching 40mph.  The attached screenshot shows a failed DRMI acquisition right before a successful one.  In the top panel, the limits are set to the DAC saturation.  In the failed attempt we saturated PRM M3 after 4 seconds, in the successfully lock we don't engage the offload to M2 until 16 seconds after the lock is acquired. 

A screenshot of the guardian log during the successfully lock is attached, we engage the WFS centering before offload.  I've rearranged the guardian to engage the offload before engaging the centering and also speed up the engaging.  It now takes about 2.5 seconds from locking to engaging the offload.  

 

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Displaying report 1-1 of 1.