We were in observation mode with a stuck excitation bit in h1sqz's STATE_WORD. We verified that there was no actual excitation running, the awg_tp_man excitation slot for H1:SQZ-LO_SERVO_EXC_EXC had gotten stuck following previous excitations of this channel. Daniel manually cleared this awg slot.

The DIAG_EXC guardian node had not reported this excitation (FRS12695)

18:11 UTC H1 into OBSERVE mode

18:52 UTC h1sqz EXC bit turned off