jeffrey.bartlett@LIGO.ORG - posted 09:04, Sunday 12 March 2017 - last comment - 10:22, Sunday 12 March 2017(34763)
Error in A2L Script
There were errors in the A2L script when I ran it this morning. TJ had reported a problem with the script a couple of weeks ago. I had put it on the Ops white board. As the A2L line had been erased from the Ops white board, and there were no aLOG entries concerning the script, I assumed it had been fixed. After running the script with errors, the A2L is now worse than before the script ran. The low frequency noise is elevated. Range is still over 65 Mpc, so will leave it to the Monday crew. The errors are captured in the two attachments.
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The problem TJ had was a result of the ASC model changes. Those were fixed that day, and the a2l script had been run successfully since.
It looks like the user account you're using doesn't have permission to write those figure files, so the script is failing on some random trial value of the a2l gain.
Try running the script from a personal account, not ops or controls - that is usually successful, and we can check on the permissions on Monday. If that fails, revert all the values to what they were...that is probably better than whatever trial value the script is leaving in there. Maybe TJ can help me change the script such that it reverts if there is some problem.
After speaking with Keita and reviewing Jenne's comments, I ran the A2L Script from a Controls terminal with no problems. The Pitch and Yaw signals are back to below the reference. Up to about 20 Hz the low frequency noise looks better.