Asteroid General Data

2012 HD₂₀

General information

Preliminary designation	2012 HD₂₀
Group	Apollo
Absolute magnitude	22.19
Approximate diameter (m)	97
Approximate mass (kg)	1.67·10⁹
Number of observations	131
Arc length (days)	3338

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	147.621887
a – orbit major semiaxis (astronomical units)	1.18121200
e – orbit eccentricity	0.27158900
ω – orbit ascending node-perihelion angle (degrees)	32.102665
Ω – longitude of orbit ascending node (degrees)	87.049769
i – orbit inclination to the ecliptic plane (degrees)	4.692225

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	139.708867	1.18041647	0.27177516	29.678784	89.720355	4.619424	0.85960859	1.282489
01/21/1858	1.627588	1.18111790	0.27200642	30.127610	89.264685	4.620270	0.85984626	1.283632
01/29/1887	222.078408	1.18049886	0.27162617	30.441017	88.830300	4.646975	0.85984448	1.282623
02/07/1916	85.042667	1.18115317	0.27176889	30.901213	88.567643	4.648012	0.86015249	1.283689
02/14/1945	304.699542	1.18134633	0.27183244	31.050881	88.154015	4.648824	0.86021807	1.284004
02/22/1974	162.027460	1.18053851	0.27162172	31.471050	87.703985	4.689758	0.85987861	1.282687
03/02/2003	24.059463	1.18154396	0.27181312	31.989189	87.338126	4.692368	0.86038481	1.284326
03/09/2032	243.055950	1.18137173	0.27171652	32.082246	86.991139	4.694085	0.86037351	1.284046
03/17/2061	99.731717	1.18063385	0.27127338	32.519385	86.527290	4.732532	0.86035932	1.282843
03/25/2090	320.155337	1.18142751	0.27128745	33.123533	86.067346	4.743428	0.86092105	1.284137
04/03/2119	176.713044	1.18126054	0.27121122	33.272922	85.767469	4.740858	0.86088943	1.283864
04/10/2148	29.406968	1.18234452	0.27150056	33.293463	85.426044	4.762714	0.86133732	1.285632
04/18/2177	229.613434	1.18347224	0.27178482	33.395763	85.023142	4.792425	0.86182245	1.287472

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