Fig. 2: Shape models of 1998 KY26. | Nature Communications

Fig. 2: Shape models of 1998 KY26.

From: Hayabusa2 extended mission target asteroid 1998 KY26 is smaller and rotating faster than previously known

Fig. 2: Shape models of 1998 KY26.

Non-convex shape model of 1998 KY26 obtained with the SAGE inversion method (left) compared to the convex inversion solution (right). The model is shown from the perspective of each principal axis (X, Y, Z), which are defined as three mutually perpendicular directions forming a right-handed coordinate system. The rotation axis is aligned with the Z axis. Both SAGE and convex inversion shape models suggest that 1998 KY26 is an asymmetric, moderately elongated object. The SAGE model shows a hint of a large concavity close to the southern hemisphere of the asteroid (negative Z-axis), which is interesting considering the small size of the object.

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