[LEAPSECS] LEAPSECS Digest, Vol 45, Issue 1

Tony Finch dot at dotat.at
Fri Sep 3 08:48:00 EDT 2010


On Fri, 3 Sep 2010, Zefram wrote:

> Tony Finch wrote:

> >

> >Oh, do tell, where will you get your GMT reference from?

>

> If I were doing it, I would take the DUT1 projections from IERS Bulletin

> A <ftp://maia.usno.navy.mil/ser7/ser7.dat>, interpolate between them,

> and add the resulting DUT1 onto a UTC clock that is synchronised by NTP.

> At the millisecond level this should provide a satisfactorily smooth

> approximation of UT1.


Thanks for the informative explanation, but GMT is not and was not UT1.

Tony.
--
f.anthony.n.finch <dot at dotat.at> 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.


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