Gnuplot
Produced by GNUPLOT 5.4 patchlevel 3
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LOD - 86400 SI seconds [ms]
Besselian epoch [year]
LOD increase
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2.3 ms/cy
2.3 ms/cy
1.8 ms/cy
1.8 ms/cy
1.4 ms/cy
1.4 ms/cy
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0.5 h
1 h
1.5 h
2 h
2.5 h
3 h
3.5 h
4 h
5 h
Integrated values of ΔT in 0.5 h increments
6 h
7 h
8 h
9 h
10 h
11 h
12 h
11 h
Integrated values of ΔT in 1 h increments
Invention of telescope
Ancient and future data from
Stephenson, Morrison, Hohenkerk (2016)
https://royalsocietypublishing.org/doi/full/10.1098/rspa.2016.0404
Recent data from IERS Paris C04
longer LOD means earth rotating more slowly
Steve Allen https://www.ucolick.org/~sla/leapsecs/
Ancient and future values for Length of Day (LOD)