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Light propagation in the Solar System for astrometry on sub-micro-arcsecond levelZschocke, Sven 02 September 2020 (has links)
We report on recent advancement in the theory of light propagation in the Solar System aiming at sub-micro-arcsecond level of accuracy:
(1) A solution for the light ray in 1.5PN approximation has been obtained in the field of N arbitrarily moving bodies of arbitrary shape, inner structure, oscillations, and rotational motion.
(2) A solution for the light ray in 2PN approximation has been obtained in the field of one arbitrarily moving pointlike body.
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