Isn't that information all there already in the "measurements" log?

William G. Unruh __| Canadian Institute for|____ Tel: +1(604)822-3273
Physics&Astronomy _|___ Advanced Research _|____ Fax: +1(604)822-5324
UBC, Vancouver,BC _|_ Program in Cosmology |____
Canada V6T 1Z1 ____|____ and Gravity ______|_

On Tue, 8 Aug 2017, Horia Muntean wrote:

On Tue, Aug 8, 2017 at 5:07 PM, Miroslav Lichvar <> wrote:
Ok. I agree it could be useful.

Do you think it would be better to write there the delay and
dispersion as was estimated right before the update of the clock to
get the maximum value of dispersion, or rather use the new values from
the update, assuming the user will calculate the amount of dispersion
that accumulated till the next update?

Miroslav Lichvar

How would one compute the estimated error of the system time from UTC
at any point in time from information given by 'chronyc tracking' ?
Is 'System Time' + 'Root Delay' / 2  + 'Root Dispersion' the correct formula ?
If yes then then all these 3 values would be helpful to be put in
tracking.log (or maybe other log) regardless
they are before or after an update as long as they are consistent
(they refer to the state of time from the same moment).

For consistency maybe they should be the values 'chronyc tracking'
would display after the last update.


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