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GarbanzoBenne t1_iwzmlcx wrote

If the leap second is an unpredictable and manual adjustment, why would GLONASS need to be replaced if we stop doing it? Can't we just stop entering these manual adjustments?

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ric2b t1_ix348cl wrote

I guess the issue is GLONASS would need to remove the past adjustments, or else it will be using a 3rd timing system that has some adjustments but not all, and would match nothing else.

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jorge1209 t1_ix3p1u7 wrote

It sounds like glonass is assuming that atomic and solar time align to within 1 second?!

I don't get it either. A one second deviation in satnav is miles, right? I don't understand how the system could function if it assumed that UTC was TAI.

This probably explains it once I can drink my coffee:

https://berthub.eu/articles/posts/leapseconds-expose-bugs-even-when-they-dont-happen/

[Edit] apparently yes GLONASS just uses Moscow wall time. I don't understand how that works at all.

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ObsessionAddict t1_ix8bxah wrote

I also don't understand this, the only reasoning that would somewhat make sense to me (doesn't mean I think it's a good reason), is something like: "He world, you wanted leap-seconds, we've spend time and money on being able to handle them, if we're going to abolish them, that's money we've spend for nothing and it's your fault!".

Not saying that's it, but if it's not, I don't understand the problem

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