Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Irradiance Variations due to Orbital and Solar Inertial Motion: The
  Effect on Earth's Surface Temperature   Variation in total solar irradiance is thought to have little effect on the
Earth's surface temperature because of the thermal time constant--the
characteristic response time of the Earth's global surface temperature to
changes in forcing. This time constant is large enough to smooth annual
variations but not necessarily variations having a longer period such as those
due to solar inertial motion; the magnitude of these surface temperature
variations is estimated.

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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
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The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-ex
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The categories of this paper are: comp-gas
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The categories of this paper are: cs
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The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn