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Revista mexicana de astronomía y astrofísica
versión impresa ISSN 0185-1101
Resumen
BRANHAM, JR., R. L.. Orbit of Comet 122P / de Vico. Rev. mex. astron. astrofis [online]. 2005, vol.41, n.1, pp.87-100. ISSN 0185-1101.
An orbit for Comet 122P/ de Vico, based on 400 observations in right ascension and 396 in declination, made between 20 February 1846 and 16 May 1996 but with a gap of 150 years between the 19th and the 20th century observations, is given. Linking to two orbits proved difficult until a boundary value approach was taken: link best fit orbits for the comet to a common fitting point. The linear system to be solved acquires a special form, symmetric, negative-definite, band, that permits efficient solution by square-root free Cholesky decomposition. Statistical tests indicate that the orbit is good.
Palabras llave : Celestial mechanics; Comets [Individual (Comet 122P/ de Vico)]; Methods [Data analysis].