On Mon 2019-01-21T15:32:27-0800 Paul Hirose hath writ: > On 2019-01-16 1:35, Steve Allen wrote: > > So starting 1970-01-01 DCF77 changed to broadcast Stepped Atomic Time > > (SAT) with second markers that were 1 SI second apart except on > > occasions when they were 1.2 SI seconds apart in order that the time > > markers would stay close to UT2.
> I don't know when DCF77 inserted the step adjustments, so I created a small > table sufficient for an example. In Bulletin Horaire series J there are announcements of when and how big jumps should be inserted into SAT. I don't know what meeting prescribed that responsibility to them, but they did it. If the BIH continued to do this then when Germany shifted from old rubber UTC to SAT in 1970 they were almost certainly following the BIH jumps. Starting in 1967 BIH stopped Bulletin Horaire and started Circular D and their Annual Report. The BIH Circulars may be hard to find, but BIH Annual Report is in libraries. -- Steve Allen <s...@ucolick.org> WGS-84 (GPS) UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855 1156 High Street Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 https://www.ucolick.org/~sla/ Hgt +250 m _______________________________________________ LEAPSECS mailing list LEAPSECS@leapsecond.com https://pairlist6.pair.net/mailman/listinfo/leapsecs