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Plot and as with

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09 Mar 2018 [12:43]
ADJUST: +300ms/day to 23300 fine tuning1546084800
09 Mar 2018 [12:35]
advance by 80 seconds - forgot to do that last night
09 Mar 2018 [00:20]
ADJUST: +1000ms/day to 23000 after raising the laser prism up the pendulum shaft - this was to introduce up-down asymmetry in order to determine the sign of the twist measurement.

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Interval between data points: seconds [either 3 seconds (weather data is duplicated) or multiples of 60 seconds (all data is averaged)].

[Raw data: Clock | Weather]

Contact:, Trinity College, Cambridge