Orbit determination of space debris: admissible regions |
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| Authors: | G Tommei A Milani A Rossi |
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| Institution: | (1) Department of Mathematics, University of Pisa, Largo B. Pontecorvo 5, 56127 Pisa, Italy;(2) ISTI/CNR, Research Area of Pisa, Via Moruzzi, 1, 56124 Pisa, Italy |
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| Abstract: | The main problem in the orbit determination of the space debris population orbiting our planet is identifying which separate
sets of data belong to the same physical object. The observations of a given object during a passage above an observing station
are collectively called a Too Short Arc (TSA): data from a TSA cannot allow for a complete determination of an orbit. Therefore, we have to solve first the identification
problem, finding two or more TSAs belonging to the same physical object and an orbit fitting all the observations. This problem
is well known for the determination of orbits of asteroids: we shall show how to apply the methods developed for preliminary
orbit determination of heliocentric objects to geocentric objects. We shall focus on the definition of an admissible region for space debris, both in the case of optical observations and radar observations; then we shall outline a strategy to perform
a full orbit determination. |
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| Keywords: | Space debris Orbit determination Admissible region |
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