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Table 2.

Variables and distributions used for the Monte Carlo analysis.

Parameter Variable type Mean value ±1σ; [bounds] Note and source
Final mutual orbit period [h] Fixed 52.67 Mottola et al. (2023)
Eccentricity Fixed 0 Levison et al. (2024)
Diameter of Dinkinesh [m] Gaussian 719 ± 24 Levison et al. (2024)
Diameter of Selam [m] Gaussian 282 ± 28 Levison et al. (2024)
aeq [m] Gaussian 3110 ± 50 Levison et al. (2024)
k/Q Log-Uniform 10x; x ∈ (3, 5) x is uniformly distributed
Coefficient for YORP Gaussian 0 ± 0.0125 ; [−2, Eq. (14)] Rossi et al. (2009)
Coefficient for BYORP Derived Eq. (11) Contractive BYORP only
Density [kg m−3] Derived
Initial primary spin [rad s−1] Derived Eq. (15) Angular momentum conservation
Initial semi-major axis [m] Uniform (1.5Rp, 2.5Rp) Roche limit

Notes. The diameters of Dinkinesh and Selam are volume-equivalent sphere diameters. In the density equation, P is the mutual orbital period.

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