Asteroid General Data

1999 HC₁

General information

Preliminary designation	1999 HC₁
Group	Apollo
Absolute magnitude	24.49
Approximate diameter (m)	34
Approximate mass (kg)	6.95·10⁷
Number of observations	11
Arc length (days)	5

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	185.329845
a – orbit major semiaxis (astronomical units)	2.02573000
e – orbit eccentricity	0.50062000
ω – orbit ascending node-perihelion angle (degrees)	159.407958
Ω – longitude of orbit ascending node (degrees)	28.339297
i – orbit inclination to the ecliptic plane (degrees)	1.273061

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	186.914852	2.00347638	0.49689445	156.498171	29.295501	1.306890	1.00796008	2.835809
01/21/1858	259.755979	2.01085425	0.49616459	157.172972	28.846528	1.332982	1.01313957	2.851488
01/29/1887	320.997801	2.01131676	0.49677696	157.711060	28.875007	1.316148	1.01214094	2.852472
02/07/1916	15.170677	2.01561160	0.50148824	158.135427	28.637125	1.316675	1.00480609	2.861613
02/14/1945	60.275751	2.01934365	0.49757332	158.244500	28.652022	1.299524	1.01457213	2.869564
02/22/1974	94.818555	2.02216075	0.49814314	158.788767	28.723717	1.281823	1.01483525	2.875571
03/02/2003	128.773889	2.02697211	0.50329317	159.206833	28.527517	1.278676	1.00681090	2.885840
03/09/2032	149.046382	2.02521988	0.50067732	159.431852	28.326342	1.272135	1.01123822	2.882099
03/17/2061	166.007821	2.02711549	0.49761980	159.967000	28.468883	1.245423	1.01838270	2.886146
03/25/2090	188.284146	2.02426817	0.50092196	160.292958	28.453827	1.236410	1.01026778	2.880068
04/03/2119	228.180621	2.01877083	0.50016067	161.075199	27.688200	1.253554	1.00906107	2.868343
04/10/2148	265.274743	2.02286104	0.49712474	161.424556	27.684328	1.232833	1.01724676	2.877065
04/18/2177	297.053818	2.02004461	0.50076228	161.866031	27.777062	1.217331	1.00848246	2.871059

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