Reports until 16:44, Friday 15 February 2013
dale.ingram@LIGO.ORG -
posted 16:44, Friday 15 February 2013 - (5518)
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See the entry by Kyle and Gerardo about their MX vacuum gauge changeout
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The HAM 2 east door appears to be off
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Rick and Kyohei operated the 10W laser in the LSB lab
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Three alarms from dust monitor 4 occurred mid-morning while Cris was cleaning the work platform and the floor in the BS test stand clean room
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Betsy: Changeout of PR3 SUS brackets
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Sheila: Worked on picomotors at EY
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Justin: Heavy lifting at clean and bake
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Keita, Kyohei, Gregorio: Inspected the OMC in the H2 PSL enclosure
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The CDS channels listed in the morning entry remain yellow
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Work permits signed by ops today: 3717 (HAM 2 cleanings), 3718 (10W laser), 3719 (MX vacuum gauge)
Ran new power spectra over the week end, to confirm why the low frequency amplitude was high on Thursday's PRM power spectra (2013-02-14). Now the suspension is covered again, the power spectra looks better. See one of the two first attached documents (allhstss_2013-02-15) comparing L1 PRM power spectra (Jan 2013) H1 PRM uncovered (Feb 14th 2013) and H1 PRM covered (Feb 15th 2013), the difference can be clearly seen.
**the data have been commited on the svn and can be found here :
/ligo/svncommon/SusSVN/sus/trunk/HSTS/Common/Data/allhstss_2013-02-15_Phase2b_H1PRM_ALL_Spectra_Doff.pdf
/ligo/svncommon/SusSVN/sus/trunk/HSTS/Common/Data/allhstss_2013-02-15_Phase2b_H1PRM_ALL_Spectra_Don.pdf
/ligo/svncommon/SusSVN/sus/trunk/HSTS/H1/PRM/SAGM1/Results/SAGM{1,2 or 3}/2013-02-15_1700_H1SUSPRM_M{1,2 or 3}_ALL_Spectra.pdf
**Only the "good" data (=Feb 15th 2013) will be added to the plotallhsts_spectra.m script. Will commit the script with new data right after this log.