[LEAPSECS] DCF77 and the inception of leap seconds

Steve Allen sla at ucolick.org
Sat Feb 2 15:09:57 EST 2019

On Sat 2019-02-02T18:32:25+0000 Michael Deckers hath writ:
> The DCF77 service started on 1959-01-01 and sent astronomically
> determined signals for UT2 or UTC until 1970-04-01 when the
> signals of DHI stopped. The PTB used Cs clocks since 1962,
> and the PTB time signals in DCF77 used steps but never used an
> offset in rate.

This is only partly consistent with what Bulletin Horaire shows.  No
surprise there.  Folks remembering details the way they wish they were
and not remembering other details is really common in the historical
writeups about what time services did and did not do.

Steve Allen                    <sla at 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

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