Asteroid (195) Eurykleia. Left: observation to model ratios versus wavelength for models AM 1 (first and third plot) and AM 2 (second and fourth) using all data to minimise the χ2 (top) and excluding the W4 data (bottom). The colour indicates the aspect angle at which the observations were taken. The AM 1 model’s pole orientation is such that the WISE data would have been taken at a sub-observer latitude of ~25° south, and the rest of the data at ~25° north. On the other hand, if pole 2 is correct, then all data would have been taken at similar “equator-on” aspect angles between 80° and 100°. Right: χ2 versus thermal inertia curves for model AM1 (top) and AM2 (bottom) using all thermal data.
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