Asteroid General Data

2021 MD

General information

Preliminary designation	2021 MD
Group	Amor
Absolute magnitude	23.49
Approximate diameter (m)	53
Approximate mass (kg)	2.77·10⁸
Number of observations	117
Arc length (days)	2359

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	239.960006
a – orbit major semiaxis (astronomical units)	1.57682300
e – orbit eccentricity	0.32485400
ω – orbit ascending node-perihelion angle (degrees)	108.861094
Ω – longitude of orbit ascending node (degrees)	145.254525
i – orbit inclination to the ecliptic plane (degrees)	8.514035

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	183.080737	1.57309961	0.32342718	106.005121	147.044404	8.434329	1.06431643	1.973036
01/21/1858	78.172817	1.57294064	0.32335278	106.290079	146.851732	8.441376	1.06432591	1.972737
01/29/1887	332.291953	1.57289577	0.32331755	106.818765	146.512250	8.452483	1.06435097	1.972652
02/07/1916	227.793499	1.57293127	0.32340652	107.126104	146.316813	8.458647	1.06423505	1.972719
02/14/1945	122.918532	1.57403371	0.32371296	107.560928	146.062615	8.465650	1.06449860	1.974793
02/22/1974	16.412664	1.57351539	0.32341633	108.044512	145.775725	8.471391	1.06461481	1.973818
03/02/2003	269.231624	1.57347939	0.32345066	108.400069	145.542441	8.478569	1.06453644	1.973750
03/09/2032	161.630071	1.57333806	0.32357054	108.859214	145.246358	8.488098	1.06425222	1.973484
03/17/2061	55.190681	1.57331644	0.32397110	109.217874	145.020989	8.493963	1.06360738	1.973444
03/25/2090	308.828156	1.57339007	0.32385535	109.500371	144.828237	8.500915	1.06383928	1.973582
04/03/2119	201.121328	1.57358171	0.32389490	110.013177	144.497101	8.511199	1.06390663	1.973943
04/10/2148	93.653852	1.57350696	0.32385284	110.315752	144.308541	8.518189	1.06392226	1.973802
04/18/2177	346.216301	1.57368457	0.32395611	110.728083	144.018539	8.528310	1.06387984	1.974136

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