Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Breakthrough Listen Follow-up of the Reported Transient Signal Observed
  at the Arecibo Telescope in the Direction of Ross 128   We undertook observations with the Green Bank Telescope, simultaneously with
the 300m telescope in Arecibo, as a follow-up of a possible flare of radio
emission from Ross 128. We report here the non-detections from the GBT
observations in C band (4-8 GHz), as well as non-detections in archival data at
L band (1.1-1.9 GHz). We suggest that a likely scenario is that the emission
comes from one or more satellites passing through the same region of the sky.

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The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
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The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas
1
The categories of this paper are: cs
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ