Fig. 1: Aspect ratios of asteroids visited by spacecraft and observed by radar.
From: The geology and evolution of the Near-Earth binary asteroid system (65803) Didymos
The intermediate to major axis ratio, \(b/a\), and minor to major axis ratio, \(c/a\), shows that Didymos possesses a smaller \(c/a\) relative to other top-shaped asteroids. Dimorphos has a large \(b/a\) relative to other secondaries. The four secondaries included are the satellites of the S-type binaries 66391 Moshup (formerly 1999 KW4) and 2000 DP107 as well as the two satellites of the C-type triple 2001 SN263 83,84,85. The black line defines \(b/a=c/a\).
