Asteroid General Data

2021 EM

General information

Preliminary designation	2021 EM
Group	Apollo
Absolute magnitude	24.46
Approximate diameter (m)	34
Approximate mass (kg)	7.24·10⁷
Number of observations	50
Arc length (days)	28

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	187.835466
a – orbit major semiaxis (astronomical units)	2.39139700
e – orbit eccentricity	0.59548000
ω – orbit ascending node-perihelion angle (degrees)	1.539167
Ω – longitude of orbit ascending node (degrees)	120.701884
i – orbit inclination to the ecliptic plane (degrees)	4.755841

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	139.622898	2.39207160	0.59605897	356.870006	122.847992	4.714504	0.96625587	3.699661
01/21/1858	81.641371	2.40346354	0.59013280	357.118803	122.624210	4.700148	0.98510088	3.726121
01/29/1887	10.473653	2.39334233	0.59518611	358.310310	122.305892	4.757082	0.96885822	3.702609
02/07/1916	308.729168	2.40666595	0.59113883	358.527430	121.962678	4.714553	0.98399227	3.733570
02/14/1945	224.899002	2.40496207	0.59557491	0.006694	121.446125	4.713626	0.97262700	3.729606
02/22/1974	151.824832	2.40455386	0.59645710	0.027219	121.310219	4.723613	0.97034063	3.728657
03/02/2003	64.353846	2.40322239	0.59231489	1.416138	120.831718	4.743108	0.97975799	3.725560
03/09/2032	355.577846	2.39911528	0.59693769	1.539435	120.653284	4.762141	0.96699294	3.716014
03/17/2061	270.681117	2.41031657	0.58912899	2.728194	120.257297	4.747922	0.99032921	3.742069
03/25/2090	190.113182	2.40310139	0.59712196	3.226994	119.949341	4.759316	0.96815678	3.725279
04/03/2119	105.593753	2.41966249	0.58762015	3.696068	119.650159	4.726052	0.99782006	3.763854
04/10/2148	10.181551	2.40621543	0.59459501	4.880077	119.372981	4.763839	0.97549174	3.732522
04/18/2177	290.933121	2.41322806	0.59325674	4.775217	119.145445	4.733259	0.98156426	3.748851

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