Asteroid General Data

2021 HE₂

General information

Preliminary designation	2021 HE₂
Group	Amor
Absolute magnitude	25.77
Approximate diameter (m)	19
Approximate mass (kg)	1.19·10⁷
Number of observations	54
Arc length (days)	31

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	123.309286
a – orbit major semiaxis (astronomical units)	1.37735800
e – orbit eccentricity	0.24498500
ω – orbit ascending node-perihelion angle (degrees)	11.172164
Ω – longitude of orbit ascending node (degrees)	201.410632
i – orbit inclination to the ecliptic plane (degrees)	9.392803

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	8.604679	1.37742327	0.24482287	8.470923	202.740525	9.418938	1.04019855	1.616597
01/21/1858	347.884239	1.37804780	0.24526881	8.793518	202.560736	9.418685	1.04005565	1.617696
01/29/1887	329.002523	1.37689237	0.24462342	9.163108	202.372637	9.420999	1.04007225	1.615662
02/07/1916	322.536934	1.37549412	0.24403375	9.559815	202.178490	9.422598	1.03982714	1.613202
02/14/1945	318.661140	1.37557752	0.24394811	9.837240	202.014850	9.423181	1.04000798	1.613349
02/22/1974	303.519825	1.37803133	0.24525245	10.392338	201.760075	9.401813	1.04006577	1.617667
03/02/2003	281.531743	1.37767417	0.24509106	10.714805	201.591787	9.404680	1.04001855	1.617039
03/09/2032	262.011063	1.37778382	0.24517310	11.190886	201.391899	9.396151	1.03998829	1.617232
03/17/2061	240.481868	1.37800709	0.24533814	11.488172	201.223148	9.397077	1.03992939	1.617625
03/25/2090	222.237008	1.37687729	0.24480620	11.944853	201.025325	9.396185	1.03980919	1.615636
04/03/2119	208.700273	1.37746191	0.24528885	12.667633	200.754152	9.375748	1.03958587	1.616665
04/10/2148	189.797489	1.37827404	0.24577902	12.944931	200.580568	9.373524	1.03952320	1.618095
04/18/2177	168.681126	1.37685616	0.24504976	13.316144	200.396494	9.376886	1.03945789	1.615599

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