Table of Delta T (DT) & change in the length of day (lod) from -2000 to + 2500 (2020)

Table of values Delta T (DT) and the change in the length of day (lod) and their estimated errors at various intervals from -2000 to +2500 calculated using the spline approximation of 2020. See the README file for more information.This resource provides the results of the modern analysis of eclipse and occultation timings from ancient Babylonian, China, and the Arab and European worlds through early telescope observations to modern observations in the following papers:Stephenson, F.R., Morrison, L.V. and Hohenkerk, C.Y. (2016). "Measurement of the Earth's rotation: 720 BC to AD 2015", <i>Proceedings of the Royal Society</i>, Series A <b>472</b>. Available via https://doi.org/10.1098/rspa.2016.0404which was updated inMorrison, L. V., Stephenson, F.R., Hohenkerk, C.Y. and M. Zawilski, M. (2021). "Addendum 2020 to `Measurement of the Earth's Rotation: 720 BC to AD 2015'", <i>Proceedings of the Royal Society</i>, Series A, <b>478</b>. Available via https://doi.org/10.1098/rspa.2020.0776<br>