Figure 16. Visual juxtaposition
of 4 close-ups of the primary white and light gray patches of the
cal-targets imaged by the left eye of Mastcam-Z on sol 9, 128, 208 and
349 to highlight the progressive visual yellowing of the AluWhite98. In
each image, the white patch is on the left, the light gray on the right.
Image-IDs: (a)
ZL0_0009_0667741621_113IOF_N0020000ZCAM03000_1100LMA01, (b)
ZL0_0128_0678304502_223IOF_N0041860ZCAM03014_048085A03, (c)
ZL0_0208_0685400431_053IOF_N0071836ZCAM03014_048085A02, (d)
ZL0_0349_0697919843_098IOF_N0092982ZCAM03014_048085A02.
To have a better overview on the spectral dependency of the yellowing,
the time evolution of the ratio between the measured and the expected
IOF reflectance is reported in Figure 17 for the primary white patch,
the primary light gray patch, the white grayscale ring, and the white
secondary horizontal tile.