[ntp:questions] Start of new GPS 1024 week epoch

Martin Burnicki martin.burnicki at meinberg.de
Sun Aug 11 10:25:37 UTC 2013

David Taylor wrote:
> Today is the start of a new GPS 1024 week epoch - see:
>    http://adn.agi.com/GNSSWeb/
> Folks with really old GPS units are reporting problems, those of us with
> current millennium GPS receivers should be OK, though.

I doubt this is correct.

GPS week 0 was in January 1980, and 1024 weeks are about 19 years 
(1024/52=~19.7), so the first rollover was in August 1999, and the next 
rollover will be again more than 19 years later, i.e. in 2019.

And indeed, the NPL web page

says it will be on April 6, 2019, which sounds more reasonable.

Martin Burnicki

Meinberg Funkuhren
Bad Pyrmont

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