Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Precise orbital elements, masses and parallax of the
  spectroscopic-interferometric binary HD 26441   The orbit of the visual-speckle binary A 2801 (HD 26441) was calculated
independently of the previously published double-lined spectroscopic solution,
obtaining similar values for the common orbital elements. In this way, it has
been possible to provide a consistent 3D orbit and precise values for both the
orbital parallax and the individual masses of the components, so the physical
properties of this stellar system are determined.

29
The categories of this paper are: funct-an
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio