Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Planetary Spectrum Generator: an accurate online radiative transfer
  suite for atmospheres, comets, small bodies and exoplanets   We have developed an online radiative-transfer suite
(https://psg.gsfc.nasa.gov) applicable to a broad range of planetary objects
(e.g., planets, moons, comets, asteroids, TNOs, KBOs, exoplanets). The
Planetary Spectrum Generator (PSG) can synthesize planetary spectra
(atmospheres and surfaces) for a broad range of wavelengths
(UV/Vis/near-IR/IR/far-IR/THz/sub-mm/Radio) from any observatory (e.g., JWST,
ALMA, Keck, SOFIA), any orbiter (e.g., ExoMars, Juno), or any lander (e.g.,
MSL). This is achieved by combining several state-of-the-art radiative transfer
models, spectroscopic databases and planetary databases (i.e., climatological
and orbital). PSG has a 3D (three-dimensional) orbital calculator for most
bodies in the solar system, and all confirmed exoplanets, while the
radiative-transfer models can ingest billions of spectral signatures for
hundreds of species from several spectroscopic repositories. It integrates the
latest radiative-transfer and scattering methods in order to compute high
resolution spectra via line-by-line calculations, and utilizes the efficient
correlated-k method at moderate resolutions, while for computing cometary
spectra, PSG handles non-LTE and LTE excitation processes. PSG includes a
realistic noise calculator that integrates several telescope / instrument
configurations (e.g., interferometry, coronagraphs) and detector technologies
(e.g., CCD, heterodyne detectors, bolometers). Such an integration of advanced
spectroscopic methods into an online tool can greatly serve the planetary
community, ultimately enabling the retrieval of planetary parameters from
remote sensing data, efficient mission planning strategies, interpretation of
current and future planetary data, calibration of spectroscopic data, and
development of new instrument/spacecraft concepts.

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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
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The categories of this paper are: hep-th
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The categories of this paper are: cs
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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn