Reports until 16:23, Thursday 26 February 2026
H1 AOS
betsy.weaver@LIGO.ORG - posted 16:23, Thursday 26 February 2026 (89289)
HAM1 JAC Viewport window re-FirstContact cleaning
Jordan and Camilla pulled the FirstContact from the JAC viewport in prep to install it on the -Y door.  Unfortunately the inner glass surface was still showing many dots of particulate so we decided to re-FirstContact clean it.  I poured on a new sheet and we are now letting it dry overnight.  Install will need to happen tomorrow after we pull the sheet and hopefully have better results.  This seems to be typical of FirstContact these days - needing to reapply a second time on numerous optics...