Fig. 39.

High-resolution laboratory spectra of Geoboard rock targets (solid red lines) and lab spectra convolved to Mastcam-Z bandpasses (open red circles) compared to Mastcam-Z reflectance measurements (Mastcam-Z left = filled black squares; Mastcam-Z right = open black squares). Lab spectra shown were acquired with the contact probe and were normalized to the reflectance value of the Mastcam-Z measurement at 754 nm. Some spectra have been offset for clarity. Root mean square errors between the two datasets are $<3\mathrm{\%}$ for all rock targets shown. Error bars shown represent the standard deviation of the Mastcam-Z pixels averaged in each region of interest. Target numbers correspond to the labels on Fig. 38