2 papers
astro-ph.EP2026
An Approximately 70-Year Core-Related Modulation of Earth Rotation and Its Implications for the Leap Second
Zewen Zhang, Yuanwei Wu, Xishun Li +4
Recent observations of Universal Time (UT1) indicate an acceleration in Earth's rotation. If sustained under the current leap-second framework, this behavior could eventually promp…
astro-ph.EP2026
Prediction of Celestial Pole Offsets Based on Sliding Window and Bivariate Least Squares Fitting
Wang Wei-long, Wu Yuan-wei, Li Xi-shun +4
As an important component of Earth Orientation Parameters (EOP), the prediction of Celestial Pole Offsets (CPO) holds significant importance for missions such as deep space explora…