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Title:
New Definition of Discovery for Solar System Objects
Authors:
Milani, Andrea; Gronchi, Giovanni F.; Knežević, Zoran
Affiliation:
AA(Department of Mathematics, University of Pisa), AB(Department of Mathematics, University of Pisa), AC(Astronomical Observatory)
Publication:
Earth, Moon, and Planets, Volume 100, Issue 1-2, pp. 83-116 (EM&P Homepage)
Publication Date:
04/2007
Origin:
SPRINGER
Keywords:
discovery, orbit determination, asteroids, comets, Trans-Neptunians
DOI:
10.1007/s11038-006-9114-6
Bibliographic Code:
2007EM&P..100...83M

Abstract

We propose a new formal definition of discovery for a Solar System object. It is based on an objective and mathematically rigorous algorithm to assess when a set of observations is enough to constitute a discovery. When this definition is satisfied, in almost all cases the orbit is defined well enough to establish the nature of the object discovered (Main Belt vs. Near Earth Asteroid, Trans-Neptunian vs. long period comet). The frequency of occurrence of exceptions is estimated by a set of numerical experiments. The availability of a non-subjective definition of discovery allows some rules to be adopted for the assignment of discovery credit with a minimum risk of dispute. Such rules should be fair, encourage good practice by the observers and acknowledge the contribution of the orbit computers providing the identifications and the orbits, as well as the one of all the contributing observers.
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