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Table 2 Lommel-Seeliger functions that predict [I/] (i, e, α) (reflectance) of Ryugu at 550 nm. ALS is Lommel-Seeliger Albedo and f(α) = \( {e}^{\beta \alpha +\gamma {\alpha}^2+\delta {\alpha}^3} \). Table from Le Corre et al. (2018)

From: Asteroid Ryugu before the Hayabusa2 encounter

  A LS β γ δ
Nominal 0.027 − 4.14 × 10−2 3.22 × 10−4 19.16 × 10−7
Maximum 0.030 − 3.99 × 10−2 3.27 × 10−4 22.15 × 10−7
Minimum 0.024 − 4.46 × 10−2 3.77 × 10−4 21.33 × 10−7