Asteroid General Data

2021 MS₁

General information

Preliminary designation	2021 MS₁
Group	Apollo
Absolute magnitude	22.16
Approximate diameter (m)	98
Approximate mass (kg)	1.74·10⁹
Number of observations	31
Arc length (days)	14

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	1.921812
a – orbit major semiaxis (astronomical units)	1.92644200
e – orbit eccentricity	0.57851000
ω – orbit ascending node-perihelion angle (degrees)	54.495006
Ω – longitude of orbit ascending node (degrees)	142.151035
i – orbit inclination to the ecliptic plane (degrees)	7.534688

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	189.355413	1.86183098	0.56227964	49.490796	145.904096	7.534704	0.81496132	2.540452
01/21/1858	336.894719	1.86267564	0.56241374	50.238272	145.369272	7.503991	0.81508126	2.542181
01/29/1887	122.654388	1.86560657	0.56300836	50.536648	145.006412	7.498894	0.81525447	2.548184
02/07/1916	261.112178	1.86539475	0.56336471	51.287506	144.469420	7.468894	0.81449718	2.547750
02/14/1945	39.536373	1.86574219	0.56237530	51.993594	143.951473	7.445100	0.81649487	2.548461
02/22/1974	177.856712	1.86639410	0.56342014	52.648885	143.492932	7.421068	0.81483008	2.549797
03/02/2003	313.754665	1.86644783	0.56298828	53.422056	142.936174	7.392410	0.81565958	2.549907
03/09/2032	90.534970	1.86602518	0.56392726	53.850057	142.596999	7.378362	0.81372271	2.549041
03/17/2061	229.074835	1.86457773	0.56380038	54.621086	142.043198	7.349332	0.81332810	2.546076
03/25/2090	8.042701	1.86585693	0.56297196	55.153002	141.589648	7.332468	0.81543180	2.548696
04/03/2119	147.938379	1.86337502	0.56326717	55.881980	141.079124	7.308487	0.81379704	2.543613
04/10/2148	293.389861	1.86356323	0.56256903	56.640813	140.526038	7.282595	0.81518027	2.543998
04/18/2177	80.366686	1.86252046	0.56375670	57.161109	140.128516	7.265047	0.81251207	2.541863

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