Picket fence update:

TL;DR,

-Latency is down and we're using pickets that should be more reliable for early warning.

-The picket fence now downloads some data from the PNSN server and therefore will only work properly from opslogin0.

-We added proposed heartbeat EPICS channels H1:SEI-USGS_SERVER_GPS and H1:SEI-USGS_SERVER_START_GPS

Full details are in the SEI log 2275  git pull to get the latest version and contact me if something does not work.