betsy.weaver@LIGO.ORG - posted 15:56, Thursday 14 March 2013 - last comment - 16:01, Thursday 14 March 2013(5798)
PR3 alignment is well underway
Jason and Travis set the IAS PLX in the HAM3 South spool. After coarsely adjusting yaw and pitch of the reflected beam back into the PLX, we are now fine tuning those DOFs via the pushers and the pitch masses.
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betsy.weaver@LIGO.ORG - 15:59, Thursday 14 March 2013 (5799)
PS - Arnaud checked spectra at lunch to make sure PR3 and PRM were not rubbing for the IAS pointing measurements. Will check again before we're finished.
betsy.weaver@LIGO.ORG - 16:01, Thursday 14 March 2013 (5800)
PS - Arnaud checked spectra at lunch to make sure PR3 and PRM were not rubbing for the IAS pointing measurements. Will check again before we're finished.
PPS - we also vacuumed the HAM2 East side of the table/components, and then pulled the PR3 and PRM FirstContact in order to start the IAS alignment.