Asteroid General Data

2021 HA₁

General information

Preliminary designation	2021 HA₁
Group	Apollo
Absolute magnitude	25.50
Approximate diameter (m)	21
Approximate mass (kg)	1.72·10⁷
Number of observations	17
Arc length (days)	4

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	33.478964
a – orbit major semiaxis (astronomical units)	1.90442600
e – orbit eccentricity	0.48617400
ω – orbit ascending node-perihelion angle (degrees)	123.186693
Ω – longitude of orbit ascending node (degrees)	43.911737
i – orbit inclination to the ecliptic plane (degrees)	4.636699

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	285.723817	1.90086184	0.48597557	118.854412	46.836824	4.580646	0.97708942	2.620755
01/21/1858	305.503147	1.90536026	0.48633885	119.527067	46.358341	4.594937	0.97870955	2.630064
01/29/1887	319.601500	1.90484223	0.48661645	120.097602	45.987688	4.598349	0.97791466	2.628991
02/07/1916	335.006621	1.90315916	0.48751620	120.902493	45.466743	4.608661	0.97533823	2.625508
02/14/1945	355.427422	1.90169703	0.48729968	121.502660	44.989266	4.613575	0.97500069	2.622483
02/22/1974	20.672534	1.90047778	0.48676463	121.918434	44.658000	4.617866	0.97539241	2.619961
03/02/2003	44.508772	1.90271924	0.48588047	122.636535	44.250165	4.626642	0.97822512	2.624597
03/09/2032	63.439937	1.90477040	0.48586064	123.242082	43.892402	4.636021	0.97931744	2.628842
03/17/2061	78.315752	1.90467083	0.48608463	123.768827	43.498617	4.642836	0.97883961	2.628636
03/25/2090	93.979456	1.90371724	0.48590177	124.346224	43.128565	4.649113	0.97869767	2.626663
04/03/2119	114.423531	1.90098233	0.48528458	125.429014	42.421749	4.666406	0.97846492	2.621004
04/10/2148	139.775521	1.90069915	0.48561498	125.938377	42.076499	4.672696	0.97769118	2.620419
04/18/2177	165.391666	1.90177932	0.48589483	126.455013	41.713615	4.678134	0.97771459	2.622653

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