Fig. 3. Shape and spin state of Apophis. (A to C) Nonconvex shape model based on radar. (D) Short-axis tumbling period convention for Apophis. (IMAGE)

Beijing Institute of Technology Press Co., Ltd

Fig. 3. Shape and spin state of Apophis. (A to C) Nonconvex shape model based on radar. (D) Short-axis tumbling period convention for Apophis.

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Fig. 3. Shape and spin state of Apophis. (A to C) Nonconvex shape model based on radar. (D) Short-axis tumbling period convention for Apophis.

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Space: Science & Technology

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