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Table 2

Parameters of the shape-from-shading analysis.

Solar irradiance at 1 AU (640<λ<650 nm) F 1.6 W m-2 nm-1

Focal length of NAC r F 0.7168 m

Differential step (for 1 pixel) ds 13.5 × 10− 6 m

Normal albedo A 0.063

Coefficients of phase function c 1 − 0.046
c 2 1.1 × 10− 3
c 3 − 1.4 × 10− 5

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