Asteroid General Data

2021 ON

General information

Preliminary designation	2021 ON
Group	Amor
Absolute magnitude	24.08
Approximate diameter (m)	41
Approximate mass (kg)	1.22·10⁸
Number of observations	20
Arc length (days)	6

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	329.551360
a – orbit major semiaxis (astronomical units)	1.95262400
e – orbit eccentricity	0.46120300
ω – orbit ascending node-perihelion angle (degrees)	157.312701
Ω – longitude of orbit ascending node (degrees)	116.014388
i – orbit inclination to the ecliptic plane (degrees)	11.116815

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	185.849475	1.95410971	0.46263710	154.099005	117.775192	10.901322	1.05006606	2.731644
01/21/1858	51.350694	1.95392738	0.46167444	154.422089	117.561074	10.922359	1.05184905	2.731261
01/29/1887	277.566050	1.95406411	0.46203091	154.948001	117.276034	10.957421	1.05122609	2.731548
02/07/1916	143.645161	1.95296857	0.46271225	155.333117	117.019299	10.986380	1.04930609	2.729251
02/14/1945	12.000385	1.95235864	0.46192773	155.857975	116.734366	11.023424	1.05051004	2.727973
02/22/1974	238.171580	1.95347507	0.46238109	156.409002	116.484541	11.059591	1.05022513	2.730313
03/02/2003	104.007850	1.95236753	0.46268629	156.908326	116.207665	11.094966	1.04903384	2.727991
03/09/2032	331.995140	1.95243513	0.46152554	157.328442	115.987951	11.119372	1.05133645	2.728133
03/17/2061	200.455881	1.95502280	0.46140959	157.818524	115.706946	11.150437	1.05295654	2.733558
03/25/2090	66.647462	1.95397255	0.46174295	158.125715	115.503716	11.167945	1.05173949	2.731356
04/03/2119	293.490470	1.95266813	0.46243062	158.548851	115.251608	11.200628	1.04969460	2.728621
04/10/2148	162.313621	1.95206945	0.46173595	159.088038	114.983010	11.236143	1.05072881	2.727367
04/18/2177	27.889048	1.95381991	0.46154137	159.615649	114.773467	11.261314	1.05205119	2.731036

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