Possessing an Instantaneous Field Of View (IFOV) of 0.5 mrad in the nominal operation mode enables spectral images with resolutions sufficient for conducting detailed spatial analyses of the spectral characteristics of the surface (Brown et al., 2004 and Stephan et al., 2012).
Fig. 1. Coverage of Tethys by VIMS observations summarized in Table 1 depending on: (a) pixel ground LY364947 and (b) phase angle.Figure optionsDownload full-size imageDownload high-quality image (868 K)Download as PowerPoint slide
2.3. Processing and spectral analysis of VIMS data
The band depths (BDs) of the individual H2O–ice absorptions at 1.5 and 2 µm were found to be a good indicator for the relative abundance of H2O–ice. Although, the depths of these absorptions are also influenced by the size of the H2O–ice particles, this effect is mostly masked by the varying abundance of H2O–ice when an additional absorbing compound like the dark material on Dione and Rhea is mixed with the H2O–ice ( Stephan, 2006, Stephan et al., 2009, Stephan et al., 2010 and Stephan et al., 2012).
Fig. 1. Coverage of Tethys by VIMS observations summarized in Table 1 depending on: (a) pixel ground LY364947 and (b) phase angle.Figure optionsDownload full-size imageDownload high-quality image (868 K)Download as PowerPoint slide
2.3. Processing and spectral analysis of VIMS data
The band depths (BDs) of the individual H2O–ice absorptions at 1.5 and 2 µm were found to be a good indicator for the relative abundance of H2O–ice. Although, the depths of these absorptions are also influenced by the size of the H2O–ice particles, this effect is mostly masked by the varying abundance of H2O–ice when an additional absorbing compound like the dark material on Dione and Rhea is mixed with the H2O–ice ( Stephan, 2006, Stephan et al., 2009, Stephan et al., 2010 and Stephan et al., 2012).