Asteroid General Data

2012 HE₂

General information

Preliminary designation	2012 HE₂
Group	Apollo
Absolute magnitude	25.98
Approximate diameter (m)	17
Approximate mass (kg)	8.87·10⁶
Number of observations	25
Arc length (days)	1

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	104.643060
a – orbit major semiaxis (astronomical units)	1.73059400
e – orbit eccentricity	0.43671800
ω – orbit ascending node-perihelion angle (degrees)	216.490320
Ω – longitude of orbit ascending node (degrees)	31.302228
i – orbit inclination to the ecliptic plane (degrees)	14.750385

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	168.235021	1.73245013	0.43548743	213.766906	32.973557	15.011524	0.97798987	2.280299
01/21/1858	73.241656	1.73110685	0.43516941	214.040599	32.759091	14.991821	0.97778210	2.277647
01/29/1887	340.213244	1.72909022	0.43521716	214.604267	32.493627	14.947443	0.97656049	2.273668
02/07/1916	252.848781	1.73044780	0.43555926	214.872947	32.262719	14.912922	0.97673524	2.276346
02/14/1945	161.495522	1.73047927	0.43610809	215.313852	32.014458	14.874521	0.97580326	2.276409
02/22/1974	74.671188	1.73087429	0.43620044	215.683734	31.764975	14.833286	0.97586616	2.277188
03/02/2003	341.850616	1.73108329	0.43679009	216.084126	31.519173	14.796390	0.97496327	2.277601
03/09/2032	250.534854	1.73059922	0.43669483	216.514737	31.281781	14.747700	0.97485549	2.276645
03/17/2061	159.795090	1.72969596	0.43755719	216.866259	31.064484	14.720599	0.97285506	2.274863
03/25/2090	69.030341	1.73110616	0.43757323	217.241757	30.781979	14.677539	0.97362045	2.277646
04/03/2119	336.205439	1.73080551	0.43868956	217.565449	30.570797	14.653459	0.97151919	2.277052
04/10/2148	238.953086	1.73203065	0.43832151	217.990383	30.272368	14.602565	0.97284436	2.279470
04/18/2177	141.181882	1.73343185	0.43957847	218.332205	30.035783	14.561040	0.97145253	2.282237

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