Asteroid General Data

2021 HN

General information

Preliminary designation	2021 HN
Group	Apollo
Absolute magnitude	26.92
Approximate diameter (m)	11
Approximate mass (kg)	2.42·10⁶
Number of observations	68
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	236.152434
a – orbit major semiaxis (astronomical units)	2.17400300
e – orbit eccentricity	0.63239500
ω – orbit ascending node-perihelion angle (degrees)	242.379046
Ω – longitude of orbit ascending node (degrees)	29.230187
i – orbit inclination to the ecliptic plane (degrees)	16.174954

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	151.816350	2.16022697	0.62937848	235.458536	35.912959	16.887123	0.80062660	3.175044
01/21/1858	201.979183	2.15937162	0.62805770	236.716143	34.844021	16.718568	0.80316166	3.173158
01/29/1887	254.947996	2.15881507	0.62971148	237.967547	33.746017	16.542092	0.79938443	3.171931
02/07/1916	306.415820	2.15855217	0.62860119	238.416007	33.263960	16.487912	0.80168371	3.171352
02/14/1945	359.425031	2.16286207	0.62921694	239.769846	32.004866	16.299941	0.80195261	3.180855
02/22/1974	47.295866	2.15900181	0.63304393	240.672184	31.194097	16.193049	0.79225883	3.172343
03/02/2003	93.129785	2.16055724	0.63258251	241.559506	30.312203	16.080093	0.79382652	3.175772
03/09/2032	136.708532	2.16720437	0.63120241	242.504355	29.115085	16.152490	0.79925975	3.190439
03/17/2061	174.831140	2.16745902	0.63309191	243.430738	28.246278	16.020267	0.79525824	3.191001
03/25/2090	203.280521	2.17336555	0.63437692	244.197094	27.382424	15.882925	0.79463262	3.204054
04/03/2119	222.454547	2.17380077	0.63448778	245.594854	26.121312	15.734518	0.79455074	3.205016
04/10/2148	242.334663	2.17455479	0.63503853	247.002840	24.841499	15.597498	0.79362871	3.206684
04/18/2177	261.520525	2.17248441	0.63633168	247.520897	24.276650	15.551276	0.79006376	3.202105

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