Asteroid General Data

2021 AB

General information

Preliminary designation	2021 AB
Group	Apollo
Absolute magnitude	25.18
Approximate diameter (m)	24
Approximate mass (kg)	2.68·10⁷
Number of observations	53
Arc length (days)	3

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	146.401441
a – orbit major semiaxis (astronomical units)	2.51340900
e – orbit eccentricity	0.64926000
ω – orbit ascending node-perihelion angle (degrees)	213.442461
Ω – longitude of orbit ascending node (degrees)	293.096488
i – orbit inclination to the ecliptic plane (degrees)	1.424668

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	52.673035	2.50544391	0.64344037	210.804651	296.822596	1.380233	0.89334014	3.965771
01/21/1858	176.751386	2.49580781	0.64922082	211.083670	296.398410	1.381297	0.87547742	3.942914
01/29/1887	311.968332	2.49039671	0.65242315	211.366756	296.075354	1.378845	0.86560425	3.930098
02/07/1916	96.699656	2.48416493	0.65526883	211.601635	295.668482	1.380293	0.85636907	3.915356
02/14/1945	244.923858	2.48557335	0.65569479	211.739196	295.393481	1.374808	0.85579585	3.918686
02/22/1974	30.232204	2.48825340	0.65465757	211.961107	294.988238	1.366272	0.85929948	3.925026
03/02/2003	166.195634	2.49698264	0.65114478	212.404350	294.407236	1.348590	0.87108542	3.945698
03/09/2032	282.015381	2.50969974	0.64873449	213.569170	292.979300	1.426286	0.88157096	3.975880
03/17/2061	25.773914	2.51591619	0.64604097	213.873706	292.471216	1.413713	0.89053127	3.990661
03/25/2090	122.593933	2.51739209	0.64594635	214.106194	292.112626	1.407467	0.89129186	3.994173
04/03/2119	218.812615	2.51507296	0.64821003	214.196723	291.851679	1.405177	0.88477744	3.988655
04/10/2148	321.880810	2.51026199	0.65105582	214.469854	291.520482	1.402827	0.87594132	3.977216
04/18/2177	78.382151	2.49843177	0.65687278	214.763974	291.126888	1.403937	0.85727995	3.949134

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