Abstract
To check the results given by the new tables of the nutation for the rigid Earth model in (Kinoshita and Souchay, 1990), we perform a calculation of this nutation by numerical integration, using the basic equations of Kinoshita (1977). Results show very small long period residuals, with a discrepancy of 0.06 mas sin Ω in longitude, -0.04 mas cos Ω in obliquity, without out-of-phase components. Moreover, the total residuals of short period do not exceed 0.1 mas in longitude, 0.06 mas in obliquity. All these results are considerably better than those found by previous numerical integrations, thus confirming the validity of the new tables.
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References
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Souchay, J., Kinoshita, H. Comparison of new nutation series with numerical integration. Celestial Mech Dyn Astr 52, 45–55 (1991). https://doi.org/10.1007/BF00048586
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DOI: https://doi.org/10.1007/BF00048586