[LEAPSECS] Leap smear

Paul J. Ste. Marie paul_j at ste-marie.org
Thu Sep 29 18:25:39 EDT 2011

On 9/24/2011 9:52 AM, Tom Van Baak allegedly wrote:

> We now have GPS, VLBI, the web, sat phones, mobile phones.

> No one relies on sextants and DUT1 radio broadcasts anymore.

That's an argument for eliminating radio time broadcasts :)

Both GPS and VLBI require knowledge of UTC and UT1 for implementation.
How does the GPS pick up the UT1 corrections? VLBI, at least when I was
involved with it many years ago, depends on the IERS circular.


More information about the LEAPSECS mailing list