Ephemerides

Systematics of planetary ephemeris reference frames inferred from pulsar timing astrometry
基于脉冲星计时观测比较行星历表参考架，结果显示其定向精度优于0.4毫角秒，非惯性旋转优于5微角秒每年。
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Systematics of planetary ephemeris reference frames inferred from pulsar timing astrometry
Effect of Galactic aberration on Earth orientation parameters: From the ICRF2 to the ICRF3
We estimated the effect of Galactic aberration on Earth orientation parameters based on geodetic/astrometric very long baseline interferometry data.
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Effect of Galactic aberration on Earth orientation parameters: From the ICRF2 to the ICRF3