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Reports until 14:24, Monday 01 June 2026
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jenne.driggers@LIGO.ORG - posted 14:24, Monday 01 June 2026 (90420)
Quick notebook script to calculate pit/yaw values when beam is flashing

Aligning beams onto QPDs while the IMC is flashing (eg, during a vent) is very challenging.  We want to know what the pit and yaw values are, but can only trust the values at a moment when there is a flash.

The jupyter notebook that has just been placed into git can (with lots of patient help from Jamie Rollins) read data that has been exported from an ndscope (so, can be data that is not DQ'd), and then will calculate the pitch and yaw values at the time of the largest flash in that time window.  

This is a direct link to the notebook right now for a snapshot of this first iteration, and you can see the plots at the very end and a printout of the pit/yaw values of all of the QPDs that I have collected data for.

Hopefully this will help make things a bit quicker as we work to center on our various ASC PDs and close out this vent.

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