Asteroid General Data

2021 EC₃

General information

Preliminary designation	2021 EC₃
Group	Apollo
Absolute magnitude	25.46
Approximate diameter (m)	21
Approximate mass (kg)	1.82·10⁷
Number of observations	14
Arc length (days)	5

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	45.690714
a – orbit major semiaxis (astronomical units)	1.92059100
e – orbit eccentricity	0.62986600
ω – orbit ascending node-perihelion angle (degrees)	292.068405
Ω – longitude of orbit ascending node (degrees)	157.005904
i – orbit inclination to the ecliptic plane (degrees)	8.681587

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	344.312750	1.92776776	0.63184531	285.456894	162.879698	8.477412	0.70971674	2.676595
01/21/1858	287.702973	1.92793012	0.63078995	286.614738	161.876285	8.511652	0.71181118	2.676933
01/29/1887	230.361851	1.92715794	0.63098163	287.391510	161.169957	8.540790	0.71115669	2.675325
02/07/1916	197.161063	1.91905528	0.62926776	288.468366	160.090281	8.576347	0.71145567	2.658470
02/14/1945	165.494347	1.92055661	0.62910256	289.235717	159.394902	8.601779	0.71232953	2.661591
02/22/1974	130.529701	1.91951278	0.62996868	290.403943	158.413918	8.645086	0.71027985	2.659421
03/02/2003	99.531984	1.91838136	0.62969389	291.256924	157.688840	8.680418	0.71038835	2.657070
03/09/2032	66.482296	1.91945084	0.63048465	292.156318	156.889945	8.685252	0.70926654	2.659292
03/17/2061	31.542092	1.92074344	0.63007859	292.980954	156.141547	8.728811	0.71052413	2.661979
03/25/2090	351.754828	1.92256735	0.63036741	293.821485	155.395190	8.774992	0.71064355	2.665772
04/03/2119	305.352160	1.92469328	0.62959175	294.782081	154.558293	8.829304	0.71292226	2.670195
04/10/2148	257.730669	1.92425013	0.62972111	295.500460	153.908424	8.868390	0.71250920	2.669272
04/18/2177	214.716389	1.92187208	0.62870915	296.607153	152.940925	8.932107	0.71357352	2.664326

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