Earth Orientation Parameters (EOPs) describe the change of the orientation of the Earth with respect to space and give the transformation between the International Celestial Reference Frame (Charlot et al., 2020) and the International Terrestrial Reference Frame (Altamimi et al., 2016). Accurate EOP information is important for positioning and navigation on the Earth and for space exploration missions, in particular for real-time applications. Currently, the EOPs are determined mainly by four space geodetic techniques including Global Navigation Satellite Systems (GNSSs) and Very Long Baseline Interferometry (VLBI) (Bizouard et al., 2018). The latter realizes uniquely the celestial pole offsets and Universal Time 1-Coordinate Universal Time (UT1-UTC), thanks to its precise observation to Active Galactic Nuclei (AGN). The 24-hr VLBI sessions are usually conducted two or three times per week with networks of globally distributed radio telescopes, and provide high-precision