Sensitivity of the Euler–Poinsot Tensor Values to the Choice of the Body Surface Triangulation Mesh

The inertial characteristics of celestial bodies can be calculated using their triangle partitions based on photometric observations. Such partitions can be refined along with the accumulation of necessary information. In this regard, the question arises to what extent the approximations of the iner...

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Veröffentlicht in:Computational mathematics and mathematical physics 2020-10, Vol.60 (10), p.1708-1720
Hauptverfasser: Burov, A. A., Nikonov, V. I.
Format: Artikel
Sprache:eng
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Zusammenfassung:The inertial characteristics of celestial bodies can be calculated using their triangle partitions based on photometric observations. Such partitions can be refined along with the accumulation of necessary information. In this regard, the question arises to what extent the approximations of the inertial characteristics of celestial bodies, in particular, the approximations of the components of the Euler–Poinsot tensor of different orders, are susceptible to the choice of such partitions. Such components enter into the expansion of the gravitational potential in harmonic polynomials. In this paper, for some small celestial bodies, a comparison of such coefficients is carried out as coarse partitions are replaced with finer ones.
ISSN:0965-5425
1555-6662
DOI:10.1134/S0965542520100061