Asteroid General Data

2021 HC₃

General information

Preliminary designation	2021 HC₃
Group	Apollo
Absolute magnitude	21.58
Approximate diameter (m)	130
Approximate mass (kg)	3.87·10⁹
Number of observations	143
Arc length (days)	1556

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	142.605247
a – orbit major semiaxis (astronomical units)	1.12156000
e – orbit eccentricity	0.67553700
ω – orbit ascending node-perihelion angle (degrees)	132.153042
Ω – longitude of orbit ascending node (degrees)	219.525508
i – orbit inclination to the ecliptic plane (degrees)	28.398573

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	193.918132	1.11941951	0.67674576	131.038353	220.807993	28.028761	0.36185710	1.184377
01/21/1858	14.190373	1.11943849	0.67645201	131.200519	220.622691	28.074307	0.36219208	1.184407
01/29/1887	193.568768	1.11959136	0.67616726	131.378277	220.417568	28.118517	0.36256034	1.184650
02/07/1916	13.194110	1.11950597	0.67589111	131.543937	220.235052	28.162475	0.36284184	1.184514
02/14/1945	192.821145	1.11962080	0.67558958	131.720027	220.039127	28.201662	0.36321666	1.184696
02/22/1974	11.728783	1.11963342	0.67521326	131.871947	219.858870	28.250103	0.36364209	1.184716
03/02/2003	191.581425	1.11965983	0.67485801	132.035235	219.674105	28.292049	0.36404843	1.184758
03/09/2032	10.969632	1.11954899	0.67447799	132.213959	219.483370	28.336629	0.36443784	1.184582
03/17/2061	190.223383	1.11941309	0.67412866	132.382198	219.305175	28.383691	0.36478465	1.184367
03/25/2090	9.419935	1.11953587	0.67372334	132.561359	219.109172	28.435846	0.36527843	1.184562
04/03/2119	188.585696	1.11963132	0.67348125	132.725434	218.929310	28.474803	0.36558062	1.184713
04/10/2148	8.143008	1.11961915	0.67317649	132.905663	218.730605	28.525872	0.36591786	1.184694
04/18/2177	187.330296	1.11963098	0.67290755	133.063662	218.555388	28.564362	0.36622284	1.184712

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