Asteroid General Data

2021 HY

General information

Preliminary designation	2021 HY
Group	Apollo
Absolute magnitude	25.33
Approximate diameter (m)	23
Approximate mass (kg)	2.18·10⁷
Number of observations	33
Arc length (days)	4

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	149.586369
a – orbit major semiaxis (astronomical units)	1.11680200
e – orbit eccentricity	0.14528400
ω – orbit ascending node-perihelion angle (degrees)	254.370596
Ω – longitude of orbit ascending node (degrees)	30.655297
i – orbit inclination to the ecliptic plane (degrees)	34.409008

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	321.457671	1.11661003	0.14454294	254.124582	31.255646	34.433316	0.95521192	1.179921
01/21/1858	173.887287	1.11659266	0.14471930	254.170950	31.163976	34.429222	0.95500016	1.179893
01/29/1887	28.701929	1.11651130	0.14467148	254.254632	31.077746	34.427980	0.95498396	1.179764
02/07/1916	242.048874	1.11686935	0.14481546	254.192141	30.991026	34.423586	0.95512941	1.180332
02/14/1945	97.486177	1.11649258	0.14485709	254.376413	30.900656	34.421517	0.95476072	1.179735
02/22/1974	311.395727	1.11683279	0.14504880	254.308211	30.815026	34.415517	0.95483753	1.180274
03/02/2003	166.345801	1.11657877	0.14505537	254.434522	30.727216	34.413788	0.95461303	1.179871
03/09/2032	19.735493	1.11684480	0.14532537	254.374809	30.640870	34.408822	0.95453891	1.180293
03/17/2061	233.885836	1.11659822	0.14527429	254.514980	30.551980	34.407600	0.95438521	1.179902
03/25/2090	86.556121	1.11692831	0.14545050	254.430852	30.466318	34.403958	0.95447053	1.180425
04/03/2119	300.132958	1.11672317	0.14549626	254.569098	30.379600	34.403206	0.95424412	1.180100
04/10/2148	152.843723	1.11692024	0.14558135	254.521123	30.289252	34.399540	0.95431748	1.180413
04/18/2177	6.649680	1.11665599	0.14558559	254.681386	30.201511	34.397139	0.95408697	1.179994

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