Asteroid General Data

2012 HC₂₀

General information

Preliminary designation	2012 HC₂₀
Group	Apollo
Absolute magnitude	21.45
Approximate diameter (m)	140
Approximate mass (kg)	4.63·10⁹
Number of observations	109
Arc length (days)	5100

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	16.201885
a – orbit major semiaxis (astronomical units)	2.30842900
e – orbit eccentricity	0.64597300
ω – orbit ascending node-perihelion angle (degrees)	263.727729
Ω – longitude of orbit ascending node (degrees)	36.971426
i – orbit inclination to the ecliptic plane (degrees)	18.223905

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	300.225614	2.31059685	0.64421791	255.567980	45.106416	18.689981	0.82206898	3.512262
01/21/1858	31.091959	2.31567676	0.64194820	256.504461	44.188985	18.624183	0.82913223	3.523851
01/29/1887	121.343164	2.31428590	0.64312232	258.086699	42.630421	18.514673	0.82591699	3.520677
02/07/1916	212.241328	2.31369466	0.64272533	258.680158	41.983877	18.475806	0.82662449	3.519327
02/14/1945	304.121012	2.31543880	0.64280318	260.330725	40.347941	18.380590	0.82706738	3.523308
02/22/1974	34.427688	2.31168358	0.64508715	261.002420	39.612318	18.352428	0.82044621	3.514740
03/02/2003	124.373404	2.31218754	0.64495529	262.403025	38.277001	18.278366	0.82092995	3.515889
03/09/2032	215.871469	2.31077837	0.64596138	263.742722	36.901466	18.226814	0.81810479	3.512676
03/17/2061	307.440469	2.31000999	0.64626110	264.985152	35.673663	18.194375	0.81714040	3.510924
03/25/2090	38.010299	2.31176826	0.64573515	266.381435	34.293702	18.155813	0.81897824	3.514933
04/03/2119	128.230396	2.31068278	0.64563510	267.840084	32.898370	18.123701	0.81882487	3.512458
04/10/2148	219.751511	2.31027471	0.64605529	269.103783	31.607696	18.109199	0.81770952	3.511527
04/18/2177	309.651719	2.31552508	0.64377640	270.397139	30.386987	18.099086	0.82484468	3.523505

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