For maybe the first time ever, the H1 IFO top node reported ALL_NODE_OK, and indicated OK==True for the entire H1 IFO:

This is a reflection of  the fact that every node in the system is reporting OK==True, which in turn means that all nodes are operating correctly and their systems are their nominal states.  In other words,

H1 guardian is ready for O1

Of course it dropped out almost immediately as the ISS was turned off for commissioning, but still...