Lunar ejecta as the missing piece to resolving lunar cratering asymmetry

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Table 2

Impact characteristics across different v₀ and different time intervals.

v₀ (km/s)	2	2.5	3	4	5	6
v_L (km/s)	2.614	3.014	3.440	4.340	5.276	6.232
	Impact frequency (kyr⁻¹)						Collision counts

100 yr–10 kyr	100.30	52.02	18.29	4.75	2.53	1.92	577.6
10 kyr–100 kyr	12.32	10.20	6.70	2.28	1.46	0.87	706.6
100 kyr–1 Myr	0.98	1.16	1.06	0.73	0.50	0.38	905.3
1 Myr–3 Myr	0.13	0.17	0.19	0.22	0.19	0.16	322.7
Overall frequency/counts	1.09	0.94	0.71	0.45	0.33	0.26	2512.2

	${\bar{v}}_{enc} (k m / s)$ $Mathematical equation: $\[\bar{v}_{\text {enc}}~(\mathrm{km} / \mathrm{s})\]$$						Aggregate ${\bar{v}}_{enc} (k m / s)$ $Mathematical equation: $\[\bar{v}_{\text {enc}}~(\mathrm{km} / \mathrm{s})\]$$

100 yr–10 kyr	0.56	0.94	1.83	3.27	4.37	5.54	0.79
10 kyr–100 kyr	1.00	1.33	1.94	3.32	4.50	5.50	1.35
100 kyr–1 Myr	2.23	2.49	3.07	3.92	4.77	5.88	2.78
1 Myr–3 Myr	4.52	5.40	5.57	6.03	6.21	6.96	5.48
Overall ${\bar{v}}_{e n c}$ $Mathematical equation: $\[\bar{v}_{enc}\]$$	1.49	2.18	3.09	4.48	5.28	6.29	2.26

	L/T						Aggregate L/T

100 yr–10 kyr	149.11	25.66	6.67	2.36	1.85	1.61	24.88
10 kyr–100 kyr	30.30	12.79	6.09	2.44	1.86	1.65	12.32
100 kyr–1 Myr	5.53	4.46	3.37	2.38	1.98	1.68	4.041
1 Myr–3 Myr	2.39	2.01	1.91	1.81	1.75	1.65	1.997
Cumulative L/T	11.68	6.22	3.66	2.18	1.87	1.66	5.928

Notes. The information about the recorded impact flux, the averaged v_enc, and the L/T for various time intervals in the simulation are presented. In the rightmost column, we summarize the aggregate results after weighting the simulation outcomes across all v₀ values, with the impact frequency being converted into the collision counts within the corresponding time range. The results have been normalized to a population of 10 000 escaped ejecta when calculating collision frequencies and counts.

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