aLIGO LHO Logbook

H1 General (PEM)

cheryl.vorvick@LIGO.ORG - posted 09:50, Tuesday 21 February 2017 (34287)

H1 remains locked during Norco delivery at CP1 (South side of LVEA) - truck injects noise

H1 remained locked while the Norco truck drove to CP1.

17:37:57UTC - Norco truck is through the gate and along side the main parking lot
17:39:42UTC - Norco truck drives off of the pavement in front of CP1 and into the rocks, stops and backs up
17:40:00UTC - Norco truck is parked, though still running

This injection of noise into H1 was very similar to the flatbed truck that picked up the frontloader, alog 34102.