Locked for 34 hours at 67Mpc.

DIAG_MAIN is showing "PCAL: Y RX PD is greater than 1% off". Trending the channel that is looks at (H1:CAL-PCALY_RX_PD_VOLTS_OUTPUT), it has dropped very slightly. This same message showed up about 12 hours ago, so I got suspicious of temperature. Sure enough, you can clearly see it dip with the temperature. See 2 day trend below