Asteroid General Data

2021 EM₁

General information

Preliminary designation	2021 EM₁
Group	Aten
Absolute magnitude	24.85
Approximate diameter (m)	28
Approximate mass (kg)	4.23·10⁷
Number of observations	92
Arc length (days)	5

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	344.337301
a – orbit major semiaxis (astronomical units)	0.90517000
e – orbit eccentricity	0.16317000
ω – orbit ascending node-perihelion angle (degrees)	171.595362
Ω – longitude of orbit ascending node (degrees)	164.702909
i – orbit inclination to the ecliptic plane (degrees)	17.359682

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	162.869311	0.90544118	0.16199717	171.626091	165.782140	17.365404	0.75876228	0.861571
01/21/1858	46.085619	0.90588451	0.16269143	171.706046	165.622305	17.362558	0.75850486	0.862204
01/29/1887	283.868023	0.90582252	0.16306922	171.722117	165.468486	17.360305	0.75811075	0.862115
02/07/1916	165.709376	0.90548225	0.16303854	171.670362	165.317915	17.360637	0.75785375	0.861629
02/14/1945	57.457338	0.90491154	0.16265694	171.700995	165.158592	17.362778	0.75772140	0.860815
02/22/1974	317.408856	0.90476679	0.16236400	171.662910	164.997045	17.364408	0.75786524	0.860608
03/02/2003	218.982501	0.90496224	0.16259507	171.612234	164.828242	17.362766	0.75781983	0.860887
03/09/2032	112.489226	0.90545021	0.16308602	171.635071	164.667554	17.360522	0.75778394	0.861584
03/17/2061	356.063608	0.90581591	0.16346471	171.661763	164.508475	17.359509	0.75774698	0.862106
03/25/2090	236.045894	0.90577205	0.16347721	171.674187	164.364605	17.361571	0.75769896	0.862043
04/03/2119	118.714214	0.90544485	0.16308312	171.687568	164.214030	17.365111	0.75778208	0.861576
04/10/2148	10.469202	0.90500602	0.16267054	171.652001	164.053163	17.367888	0.75778820	0.860950
04/18/2177	271.971060	0.90476256	0.16248628	171.584358	163.885620	17.368053	0.75775106	0.860602

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