Fast Geometric Method for Calculating Accurate Minimum Orbit Intersection Distances

• Autorzy: Wiśniowski T. , Rickman H.
• Języki publikacji: EN

Abstrakty

EN

We present a new method to compute Minimum Orbit Intersection Distances (MOIDs) for arbitrary pairs of heliocentric orbits and compare it with Giovanni Gronchi's algebraic method. Our procedure is numerical and iterative, and the MOID configuration is found by geometric scanning and tuning. A basic element is the meridional plane, used for initial scanning, which contains one of the objects and is perpendicular to the orbital plane of the other. Our method also relies on an efficient tuning technique in order to zoom in on the MOID configuration, starting from the first approximation found by scanning. We work with high accuracy and take special care to avoid the risk of missing the MOID, which is inherent to our type of approach. We demonstrate that our method is both fast, reliable and flexible. It is freely available and its source Fortran code downloadable via our web page.

Słowa kluczowe

EN

celestial mechanics; minor planets: general; asteroids: general; comets: general

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2013
• Tom: Vol. 63, No. 2
• Strony: 293--307
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Wiśniowski T.

• Space Research Centre, Polish Academy of Sciences, ul. Bartycka 18A, 00-716 Warszawa, Poland

autor

Rickman H.

• Space Research Centre, Polish Academy of Sciences, ul. Bartycka 18A, 00-716 Warszawa, Poland
• Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala, Sweden

Bibliografia

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• Gronchi, G.F., Tommei, G., and Milani, A. 2007, in: “Near Earth Objects, our Celestial Neighbors: Opportunity and Risk”, G.B. Valsecchi, D. Vokrouhlický, and A. Milani, Eds. (Cambridge Univ. Press, Cambridge) p. 3.
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