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CelestiaProject / Celestia

Real-time 3D visualization of space.
https://celestiaproject.space
GNU General Public License v2.0
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Predict leap seconds #342

Open 375gnu opened 5 years ago

375gnu commented 5 years ago

We can predict leap seconds algorithmically. Old algorithm can be found in Meeus; Astronomical Algorithms. More correct one is described in https://eclipse.gsfc.nasa.gov/SEhelp/deltatpoly2004.html

375gnu commented 5 years ago

This link provides several useful links: http://mm.icann.org/pipermail/tz/2019-July/028377.html

375gnu commented 5 years ago

Better to read the whole thread: http://mm.icann.org/pipermail/tz/2019-July/028270.html

ajtribick commented 2 years ago

I think it makes sense to have a custom rotation model for the Earth but I don't think it makes sense to use that to predict future leap seconds: it doesn't represent the actual definition of how UTC and TAI are linked.