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This site provides an interface to Goddard's Planetary Spectrum Generator (PSG), which can be used to generate high-resolution spectra of planetary bodies (e.g., planets, moons, comets, exoplanets). The spectroscopic suite can be also accessed remotely via the Application Program Interface (API). When requiring help on a specific input parameter, please click on the Help icon.

Calculation template Help
Instrument parameters HelpWavelength range 5-36 um with a resolution of 1200 RP. Molecular radiative-transfer enabled; Continuum flux module enabled;


Radiance spectrum   


Noise components