Fig. 6From: Homogeneity and heterogeneity in near-infrared FTIR spectra of Ryugu returned samplesParameters related to PC1 and PC2. a PC1 is highly correlative with the reflectance of samples represented at 2.6 μm. b PC2 seems to correlate with the spectral slope in the analyzed wavelength range (2.6–4.1 μm)Back to article page