Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Overview of the SPOrt Experiment   The Sky Polarization Observatory is an experiment selected by ESA for the
Early Opportunity Phase onboard the International Space Station. SPOrt is the
first payload specifically designed for polarization measurements, it will
provide near full sky maps of the sky polarized emission at four microwave
frequencies between 22 and 90 GHz. Current design of SPOrt will be presented,
together with an overview of the scientific goals of the experiment.

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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: chem-ph
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat