Impactor flux and cratering on the Pluto-Charon system

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Table 2:

Collisional evolution results about Charon.
	Initial Pop. 1	Initial Pop. 2	Initial Pop. 3
N(D > 1)	1545	791	354
$\tau(D > 1)$ (Myr)	2.27	4.42	9.9
$D_{{\rm i,\rm Max}}$ (km)	14.6	12.5	9.8
C(D > 1)	50 688	34 541	20 351
$D_{{\rm c,Max}}$ (km)	32.7	28.9	24

Notes. N(D > 1) is the total number of D > 1 km Plutinos impacting Charon over 3.5 Gyr, $\tau(D > 1)$ the timescale on which these impacts occur, $D_{{\rm i,Max}}$ the largest Plutino expected to have struck Charon during the past 3.5 Gyr, C(D > 1) the total number of D > 1 km craters on Charon produced by Plutino impacts over 3.5 Gyr, and $D_{{\rm c,Max}}$ the largest crater diameter on Charon.

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