parent parent_name family_id family_name c_param author ref method 5950 Leukippos -1 Leukippos -1.0000 Nesvorny 2025arXiv250800753N/ HCM-2025 221 Eos 0 Eos nan Novakovic 2019EPSC...13.1671N HCM 221 Eos 606 Eos -0.3000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14