Asteroid General Data

2021 HC₂

General information

Preliminary designation	2021 HC₂
Group	Apollo
Absolute magnitude	28.78
Approximate diameter (m)	5
Approximate mass (kg)	1.85·10⁵
Number of observations	25
Arc length (days)	16

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	352.685874
a – orbit major semiaxis (astronomical units)	1.08278300
e – orbit eccentricity	0.19788000
ω – orbit ascending node-perihelion angle (degrees)	95.648144
Ω – longitude of orbit ascending node (degrees)	27.480150
i – orbit inclination to the ecliptic plane (degrees)	1.513558

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	196.709108	1.07008845	0.19579003	90.212953	31.492296	1.283602	0.86057580	1.106955
01/21/1858	273.662710	1.07078915	0.19612127	90.272070	31.194543	1.279994	0.86078462	1.108043
01/29/1887	348.127381	1.06905160	0.19589746	90.382890	30.897878	1.277254	0.85962710	1.105347
02/07/1916	59.655002	1.07344712	0.19718373	89.852748	30.310316	1.242229	0.86178081	1.112171
02/14/1945	84.864667	1.07399809	0.19733903	89.537895	29.980542	1.237509	0.86205634	1.113027
02/22/1974	148.817595	1.07107272	0.19660568	88.905410	29.558347	1.248576	0.86049374	1.108483
03/02/2003	261.929826	1.06749496	0.19592972	90.196353	29.074860	1.223416	0.85834097	1.102934
03/09/2032	301.586548	1.08339235	0.19800416	95.827725	27.443034	1.512739	0.86887615	1.127663
03/17/2061	224.701508	1.08034690	0.19713120	96.956846	27.101627	1.497067	0.86737682	1.122911
03/25/2090	147.049440	1.08350369	0.19779043	97.950615	26.935987	1.493782	0.86919702	1.127837
04/03/2119	79.010704	1.07977263	0.19722373	102.020657	23.704905	1.328223	0.86681585	1.122016
04/10/2148	176.631631	1.10457125	0.20316786	113.376655	17.790333	1.029454	0.88015787	1.160890
04/18/2177	183.000148	1.10416964	0.20321323	113.446990	16.789592	1.012012	0.87978776	1.160257

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