What to do during and right after holdover depends on the reason you have a time standard. If it is for maintaining a lab standard, then just shut down as you can't perform your primary function. It you have this standard because you are required to time stamp financial transactions then you have to keep going until you estimate some error threshold then stop. If you are using it to aim a telescope then again, stop using it the estimated error is enough that you'd miss your targets. It depends on the use case.
I remember aiming a telescope when our best source of time was NTP over a dial-up phone modem in the days before always-on Internet This was in the 1980's and it worked well enough. The normal case was "outage" as the modem connection was short and only a few times per day. But was good enough to re-calibrate a local clock Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
