Asteroid General Data

2021 DM

General information

Preliminary designation	2021 DM
Group	Apollo
Absolute magnitude	26.06
Approximate diameter (m)	16
Approximate mass (kg)	7.94·10⁶
Number of observations	18
Arc length (days)	7

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	70.685181
a – orbit major semiaxis (astronomical units)	1.42878400
e – orbit eccentricity	0.32772700
ω – orbit ascending node-perihelion angle (degrees)	222.898960
Ω – longitude of orbit ascending node (degrees)	334.662411
i – orbit inclination to the ecliptic plane (degrees)	14.684161

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	110.478141	1.42676805	0.32559451	220.886067	335.992550	14.832327	0.96222021	1.704240
01/21/1858	120.348239	1.42715689	0.32609117	221.148633	335.804205	14.814437	0.96177364	1.704936
01/29/1887	129.080379	1.42655709	0.32600883	221.526073	335.611478	14.789077	0.96148688	1.703862
02/07/1916	140.160633	1.42676358	0.32612571	221.777505	335.435623	14.777561	0.96145929	1.704232
02/14/1945	146.444888	1.42773051	0.32677333	222.044887	335.227814	14.752087	0.96118626	1.705964
02/22/1974	146.516284	1.42856784	0.32737991	222.318773	335.038286	14.725736	0.96088344	1.707465
03/02/2003	145.368129	1.42816306	0.32726408	222.630835	334.831123	14.711109	0.96077659	1.706740
03/09/2032	144.939939	1.42864490	0.32781802	222.928681	334.642102	14.683115	0.96030935	1.707604
03/17/2061	142.400198	1.42888321	0.32803101	223.216001	334.444681	14.667266	0.96016521	1.708031
03/25/2090	143.454618	1.42818699	0.32791116	223.499918	334.273196	14.657339	0.95986855	1.706783
04/03/2119	139.940220	1.42869401	0.32858320	223.793330	334.075722	14.629985	0.95924916	1.707692
04/10/2148	135.648641	1.42873806	0.32877849	224.129349	333.869294	14.602888	0.95899972	1.707771
04/18/2177	131.846053	1.42843450	0.32892817	224.483760	333.672897	14.579206	0.95858215	1.707226

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