thomas.shaffer@LIGO.ORG - posted 07:39, Wednesday 02 December 2015 - last comment - 14:58, Wednesday 02 December 2015(23894)
Tractor clearing snow in parking lot, visible dip in range
At 15:06 UTC Bubba told me that he was headed out to clear the parking lots of snow. Since then there has been about a 5Mpc drop in range. Coincidence?
Comments related to this report
jeffrey.bartlett@LIGO.ORG - 09:46, Wednesday 02 December 2015 (23898)
Attaching a plot that compares the DARM spectrum during Tractor activity (15:40UTC) and an earlier quiet time from the same lock (8:00UTC). It clearly shows excess noise from ~80-190Hz.
Attaching a plot that compares the DARM spectrum during Tractor activity (15:40UTC) and an earlier quiet time from the same lock (8:00UTC). It clearly shows excess noise from ~80-190Hz.