Remarks on the Meteor Orbital Similarity D-Criterion

Jopek, T. J.

doi:10.1006/icar.1993.1195

Cited by 102 publications

(70 citation statements)

References 5 publications

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“…Depending on the number of parameters required to a given similarity function, the distance between two orbits might be measured in a five-dimensional phase space (Southworth & Hawkins 1963;Drummond 1981;Jopek 1993), seven-dimensional phase (Jopek et al 2008), or other.…”

Section: Orbital Similarity Functionsmentioning

confidence: 99%

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Association of individual meteors with their parent bodies

Rudawska

Vaubaillon

Atreya

2012

A&A

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Context. The main problem in establishing a parent body for a meteoroid stream is the choice of a reliable meteoroid stream identification method. There are several identification methods based on three components: a dynamical similarity function, a threshold value, and meteoroid stream search algorithm. Aims. The French Meteor Network, developed in the CABERNET project (PODET-MET), will soon provide a large amount of meteor observation data aiming to establish a parent body for each observed meteor. We therefore aim to obtain the value of the upper limit to the criteria that we can later use for data provided by the French Meteor Network. Methods. We tested four D-criteria, using artificial data sets for which the parent body is known. We obtained threshold values and applied them to the Armagh Observatory meteor database. A detailed comparison is made between a similarity function based on the orbital elements and the function defined by quasi-invariants. Results. We detected major meteoroid streams in the Armagh Observatory meteor database. A few meteors were also found to be associated with the asteroid 2005 UW6 -an asteroids not considered as a possible parent body for Taurid complex before. However, the problem of finding the appropriate threshold value that would work with all meteoroid streams is still open.

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Section: Orbital Similarity Functionsmentioning

confidence: 99%

“…In our survey, we decided to test four D-criteria: D SH of Southworth & Hawkins (1963), D H of Jopek (1993), D V of Jopek et al (2008), and D J of Jenniskens (2008). We rejected Drummond's criterion (Drummond 1981) because of its conceptual similarity with D SH and D H .…”

Section: Orbital Similarity Functionsmentioning

confidence: 99%

Association of individual meteors with their parent bodies

Rudawska

Vaubaillon

Atreya

2012

A&A

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“…Thus, when meteors are simultaneously detected from, at least, two different meteor stations, their atmospheric trajectory and radiant can be easily determined, and the orbit of the progenitor meteoroid in the Solar System can be calculated (Ceplecha 1987). Once the orbital parameters are known, the so-called dissimilarity criteria can be employed to infer which is the potential parent body of these particles (Southworth and Hawkins 1963;Drummond 1981;Jopek 1993;Valsecchi et al 1999;Jenniskens 2008;Williams 2011;Madiedo et al 2013aMadiedo et al , 2014c.…”

Section: Introductionmentioning

confidence: 99%

Robotic systems for the determination of the composition of solar system materials by means of fireball spectroscopy

Madiedo

2014

Earth Planet Sp

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The operation of the automated CCD spectrographs deployed by the University of Huelva at different observatories along Spain is described. These devices are providing information about the chemical nature of meteoroids ablating in the atmosphere. In this way, relevant physico-chemical data are being obtained from the ground for materials coming from different bodies in the Solar System (mainly asteroids and comets). The spectrographs, which work in a fully autonomous way by means of software developed for this purpose, are being employed to perform a systematic fireball spectroscopic campaign since 2006. Some examples of meteor spectra obtained by these devices are also presented and discussed.

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“…Two D-functions were used: D SH introduced in Southworth and Hawkins (1963) and D H introduced in Jopek (1993). The orbital similarity thresholds corresponded to 1% probability that given group was found by chance alignment.…”

Section: Introductionmentioning

confidence: 99%