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Compositional Mapping of Europa Using MCMC Modeling of Near-IR VLT/SPHERE and Galileo/NIMS Observations

  • Authors: Oliver King, Leigh N Fletcher, and Nicolas Ligier

2022 The Planetary Science Journal 3 72.

  • Provider: AAS Journals

Caption: Figure 2.

Image-cleaning process for IFS data. The top images show observations of Europa at 1.37 μm, the wavelength where the striping pattern is the worst. The bottom images show the observations’ corresponding Fourier transform magnitudes on a logarithmic scale. The frequencies that cause the striping pattern in the raw image (the bright dots away from the center of the Fourier transform) are set to zero to remove the artificial pattern. The image is then despiked to remove any extreme bright or dark pixels, which are replaced by interpolated values.

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