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jordan.vanosky@LIGO.ORG - posted 16:52, Thursday 26 March 2026 (89660)
HAM1 Vented and Annulus Vented

Travis, Jordan

HAM1 was vented today per M1300464 and E2300169, no pressure change in the corner during the venting. Dewpoint and particle counts collected prior to air admittance (-43C dew point).

Once the laser tables were moved away from the chamber, we vented the annulus system and all but 4 bolts were removed from both +Y and -Y doors in prep for door removal tomorrow. 

Closing WP 13123

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