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Fig. 5 | Earth, Planets and Space

Fig. 5

From: Geometric correction for thermographic images of asteroid 162173 Ryugu by TIR (thermal infrared imager) onboard Hayabusa2

Fig. 5

a Shows an example of one image projected on the map using the shape model of Ryugu (SFM 800k v20180804) in the map of \(0.5^\circ\) by \(0.5^\circ\) gridded. b, c Show the temperature profiles at the hot area of the Ejima Saxum (Lat: \(-28.0^\circ\), Lon: \(106.0^\circ\)) and the Urashima crater (Lat: \(-6.5^\circ\), Lon: \(96.5^\circ\)), which were derived from 31 images extracted from the hot areas as shown in the square area of a. The orange and blue points in the top figures of b and c denote the observed temperature profiles before and after the geometric correction, respectively. The temperature profile after the correction (blue points) of the Ejima Saxum is matched to the simulated temperature profile derived from TPM-1 (Takita et al. 2017), assuming the thermal inertia value of 300 Jm\(^{-2}\)s\(^{-0.5}\)K\(^{-1}\) (bottom figure of b), but that of the Urashima crater is not matched to the simulation (bottom figure of c)

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