Asteroid General Data

2021 OB₁

General information

Preliminary designation	2021 OB₁
Group	Apollo
Absolute magnitude	25.76
Approximate diameter (m)	19
Approximate mass (kg)	1.20·10⁷
Number of observations	50
Arc length (days)	4

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	337.058381
a – orbit major semiaxis (astronomical units)	1.88898400
e – orbit eccentricity	0.50173200
ω – orbit ascending node-perihelion angle (degrees)	52.566957
Ω – longitude of orbit ascending node (degrees)	302.031745
i – orbit inclination to the ecliptic plane (degrees)	4.757505

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	331.207866	1.88770946	0.50052146	47.619912	306.092647	4.955794	0.94287036	2.593602
01/21/1858	39.508128	1.88784115	0.50079664	48.236910	305.643042	4.935576	0.94241665	2.593873
01/29/1887	105.462173	1.88845522	0.50179829	49.047713	304.999415	4.908767	0.94083161	2.595139
02/07/1916	167.513540	1.89149553	0.50190500	49.669101	304.361832	4.864530	0.94214447	2.601409
02/14/1945	221.162932	1.89285885	0.50236784	50.464198	303.673049	4.826064	0.94194745	2.604222
02/22/1974	271.839691	1.89332874	0.50286943	51.229661	303.027189	4.806948	0.94123159	2.605192
03/02/2003	320.541720	1.89324025	0.50279392	51.812794	302.544428	4.790462	0.94133057	2.605009
03/09/2032	16.082851	1.88897590	0.50165170	52.857083	301.840879	4.747724	0.94136794	2.596213
03/17/2061	83.516611	1.88744224	0.50162988	53.508453	301.344662	4.733899	0.94064481	2.593051
03/25/2090	150.958152	1.88790122	0.50167979	54.350964	300.701933	4.709355	0.94077933	2.593997
04/03/2119	215.199168	1.89038739	0.50226446	55.162336	299.912659	4.673035	0.94091298	2.599123
04/10/2148	271.119685	1.89311010	0.50259769	56.020915	299.099892	4.619697	0.94163734	2.604740
04/18/2177	322.041213	1.89362921	0.50319081	56.883880	298.386039	4.601439	0.94077239	2.605812

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