Asteroid General Data

2021 EC₄

General information

Preliminary designation	2021 EC₄
Group	Aten
Absolute magnitude	24.18
Approximate diameter (m)	39
Approximate mass (kg)	1.07·10⁸
Number of observations	46
Arc length (days)	37

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	259.602756
a – orbit major semiaxis (astronomical units)	0.95025300
e – orbit eccentricity	0.50313100
ω – orbit ascending node-perihelion angle (degrees)	304.005084
Ω – longitude of orbit ascending node (degrees)	1.605202
i – orbit inclination to the ecliptic plane (degrees)	7.338861

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	210.968446	0.94794498	0.50263904	301.841293	3.490562	7.362219	0.47147083	0.922944
01/21/1858	22.248787	0.94727687	0.50214443	302.103722	3.234309	7.359633	0.47160707	0.921968
01/29/1887	201.116132	0.94658686	0.50217320	302.416114	2.990448	7.362073	0.47123631	0.920961
02/07/1916	27.656158	0.94635126	0.50231003	302.717601	2.780890	7.370975	0.47098953	0.920617
02/14/1945	200.783992	0.94789521	0.50263432	303.207420	2.411385	7.352727	0.47145054	0.922871
02/22/1974	348.960220	0.95031547	0.50275418	303.537519	2.090333	7.343830	0.47254039	0.926408
03/02/2003	105.443623	0.95026345	0.50272766	303.759172	1.884133	7.346435	0.47253973	0.926332
03/09/2032	228.242317	0.95011061	0.50273046	304.037204	1.538456	7.329450	0.47246107	0.926108
03/17/2061	351.122328	0.95018076	0.50282574	304.335197	1.226957	7.316138	0.47240542	0.926211
03/25/2090	112.911123	0.94917003	0.50288695	304.676003	1.026522	7.320970	0.47184481	0.924734
04/03/2119	261.451949	0.94816395	0.50268970	305.094129	0.615683	7.286789	0.47153170	0.923264
04/10/2148	50.406312	0.94881660	0.50282770	305.319626	0.266241	7.267844	0.47172533	0.924217
04/18/2177	190.011990	0.94994767	0.50261670	305.344404	0.033307	7.261008	0.47248811	0.925870

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