Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analysis of the September $\varepsilon$-Perseid outburst in 2013   We analyze the outburst experienced by the September $\varepsilon$-Perseid
meteor shower on 9 September 2013. As a result of our monitoring the
atmospheric trajectory of 60 multi-station events observed over Spain was
obtained and accurate orbital data were derived from them. On the basis of
these orbits, we have tried to determine the likely parent body of this
meteoroid stream by employing orbital dissimilarity criteria. In addition, the
emission spectra produced by two events belonging to this meteor shower were
also recorded. The analysis of these spectra has provided information about the
chemical nature of their progenitor meteoroids. We also present an estimation
of the tensile strength for these particles.

10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph