https://www.cambridge.org/core/services/aop-cambridge-core/content/view/FFA10ED6A784AA1E39637CC0CA93B750/S0074180900036007a.pdf/div-class-title-some-advantages-and-disadvantages-of-a-photographic-zenith-tube-div.pdf indicates a timing error of around 6 millisec
Bruce > On 26 March 2019 at 12:15 Bruce Griffiths <bruce.griffi...@xtra.co.nz> wrote: > > > John > http://adsabs.harvard.edu/full/1968JRASC..62..205T > indicates a timing accuracy of a few milliseconds was typical for the Calgary > PZT. > > Bruce > > On 26 March 2019 at 11:44 John Ackermann N8UR <j...@febo.com> wrote: > > > > > > Does anyone have a pointer to information about the absolute time > > accuracy (not stability) that was available via PZT or other techniques > > prior to the Cesium definition? I'm doing a presentation and want to > > show the evolution of accuracy. My Google-fu has failed me in finding > > anything pre-Atomic. > > > > Thanks! > > John > > > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.