Gnuplot
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50
100
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1980
2000
2020
2040
2060
2080
2100
ΔT [s]
Besselian epoch [yr]
gnuplot_plot_1
gnuplot_plot_2
measured IERS EOP C04
measured IERS EOP C04
A32 deceleration since -700
A32 deceleration since -700
A25 deceleration since 1620
A25 deceleration since 1620
A42 deceleration from LLR
A42 deceleration from LLR
MB McCarthy+Babcock(1986)
MB McCarthy+Babcock(1986)
MS Morrison+Stephenson(2004)
MS Morrison+Stephenson(2004)
gnuplot_plot_9
EM Espenak+Meeus(2006)
EM Espenak+Meeus(2006)
gnuplot_plot_11
Mml McCarthy(2012)
Mml McCarthy(2012)
Sw Seago 1630/2013 weighted(2013)
Sw Seago 1630/2013 weighted(2013)
Sl Seago 1907/2013 linear(2013)
Sl Seago 1907/2013 linear(2013)
Ml Matsakis linear(2014)
Ml Matsakis linear(2014)
Mp Matsakis parabolic(2014)
Mp Matsakis parabolic(2014)
Steve Allen https://www.ucolick.org/~sla/leapsecs/
Various estimates of ΔT