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Fig. 3

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Semi-major axis drift rate da/dt for different thermal parameter Θ versus shape index S2. The orange dots, green squares, and cyan diamonds represent the da/dt for asteroids with different K values, thus of Θ1 = 0.736, Θ2 = 7.36, and Θ3 = 73.6, respectively. The lines are the corresponding least-squares fits.
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