Contact Binary Models

This page is maintained by Richard Cannon (richard.cannon@ed.ac.uk). Please reach out if any models have been missed, or information is incorrect.
This table is a simplified version of the table in Cannon et al. (2025).

All non-shape information is taken from the shape publication papers, unless reference is given otherwise as a hyperlink. Shape information (DEEVE, D_eff, etc.) is recalculated from the model files.

Last updated 09/07/2026.



Name Dynamic Class Spectral Type DEEVE_2a [km] D_eq [km] P [h] Model_File Publication
(388188) 2006 DP14 NEA X 0.52 0.26 5.7860 Download File Cannon et al. (2025)
(275677) 2000 RS11 NEA Sa 4.04 3.50 4.445 Download File Cannon et al. (2026)
(85990) 1999 JV6 NEA Xk 0.78 0.44 6.536787 Download File Rozek et al. (2019)
(68346) 2001 KZ66 NEA S 1.58 0.80 4.985997 Download File Zegmott et al. (2021)
2024 ON NEA -- -- -- -- -- Cannon et al. (2026)
(4769) Castalia NEA -- 1.73 1.08 4.07 Available Here Hudson & Ostro (1994)
(2063) Bacchus NEA Q / C 1.12 0.67 15 Available Here (1 lobe) Benner et al. (1999)
(4486) Mithra NEA S (ref) 2.56 1.69 67.5 Available Here Brozovic et al. (2011)
(1981) Midas NEA V 3.59 1.77 5.2216 Download File McGlasson et al. (2022)
(216) Kleopatra MBA M 310 122 5.38528 Available Here Shepard et al. (2018)
(52246) Donaldjohanson MBA C -- 4.80 (estimated) 252 (NPA) Not Public Marchi et al. (2026)
(152830) Dinkinesh I Selam MBA S -- -- 52.67 -- Levison et al. (2024)
(486958) Arrokoth KBO -- 38.0 19.9 15.938 Available Here Porter et al. (2024)
(4179) Toutatis NEA S 4.25 2.44 178 (NPA) Available Here (Radar model) Hudson et al. (2003)
(98943) Torifune NEA -- -- -- -- -- JAXA (2026)
(8567) 1996 HW1 NEA Sx 4.20 2.02 8.76243 Available Here Magri et al. (2011)
(25143) Itokawa NEA S (ref) 0.59 0.32 12.1323789 Available Here (Gaskell model) Demura et al. (2006)
(85989) 1999 JD6 NEA K 3.17 1.45 7.6643464 Not Public Marshall (2017) Thesis
67P/Churyumov–Gerasimenko Comet -- 4.68 3.30 -- Available Here Preusker et al. (2017)
103P/Hartley 2 Comet -- 2.57 1.15 16 Available Here Thomas et al. (2013)
(11066) Sigurd NEA -- 4.46 2.14 8.4958 Not Public Cannon et al. (2025)
(523804) 2000 YF29 NEA -- 0.42 0.3 6.14 Not Public Cannon et al. (2025)
2004 XL14 NEA -- 0.30 0.21 17.0 Not Public Cannon et al. (2025)
8P/Tuttle NEA -- -- 10 -- Not Public Harmon et al. (2010)