On Wed, 12 Jan 2011, Steve Allen wrote: > On Wed 2011-01-12T16:36:35 +0000, Tony Finch hath writ: > > > > Yes, but how accurately do you need clocks to track it? How frequently do > > you need to make adjustments to correct for the atomic/angular rate error, > > and what size of adjustment is acceptable? > > It would appear that making adjustments every 10 days is not > often enough, at least in the US, viz: > http://www.nist.gov/pml/div688/grp50/NISTUTC.cfm > http://www.nist.gov/pml/div688/grp50/nistusno.cfm
That is completely beside the point! You have just changed the subject from the acceptable error between UT1 and UTC to the error between realizations of UTC. You were complaining that abandoning leap seconds introduces an uncorrected and increasing rate error between UT1 and UTC. I was pointing out that if you don't need them to match to within a second then you don't need to correct for the rate error very frequently, e.g. once every few hundred years is sufficient if the acceptable UTC error is comparable to the errors inherent in the timeone system. Tony. -- f.anthony.n.finch <[email protected]> http://dotat.at/ HUMBER THAMES DOVER WIGHT PORTLAND: NORTH BACKING WEST OR NORTHWEST, 5 TO 7, DECREASING 4 OR 5, OCCASIONALLY 6 LATER IN HUMBER AND THAMES. MODERATE OR ROUGH. RAIN THEN FAIR. GOOD. _______________________________________________ LEAPSECS mailing list [email protected] http://six.pairlist.net/mailman/listinfo/leapsecs
