Asteroid General Data

2021 AB₄

General information

Preliminary designation	2021 AB₄
Group	Apollo
Absolute magnitude	26.83
Approximate diameter (m)	11
Approximate mass (kg)	2.74·10⁶
Number of observations	98
Arc length (days)	24

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	292.035873
a – orbit major semiaxis (astronomical units)	1.32027100
e – orbit eccentricity	0.29030600
ω – orbit ascending node-perihelion angle (degrees)	141.019038
Ω – longitude of orbit ascending node (degrees)	287.609184
i – orbit inclination to the ecliptic plane (degrees)	2.992962

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	123.610286	1.34507660	0.30115030	138.640636	292.137336	2.736703	0.94000637	1.559988
01/21/1858	342.770973	1.34402670	0.30078008	139.610293	291.266811	2.739380	0.93977024	1.558161
01/29/1887	224.455324	1.33726759	0.29791330	139.542925	290.549106	2.807137	0.93887779	1.546422
02/07/1916	131.638477	1.33815789	0.29802191	140.304413	290.066553	2.804442	0.93935751	1.547967
02/14/1945	41.838077	1.34004715	0.29878995	140.810977	289.576140	2.810835	0.93965452	1.551246
02/22/1974	299.857709	1.33918621	0.29834810	141.781551	288.692227	2.816918	0.93964255	1.549751
03/02/2003	195.154678	1.33999932	0.29864762	142.305479	288.130716	2.825941	0.93981171	1.551163
03/09/2032	150.854336	1.32057931	0.29064830	141.117322	287.526696	2.994899	0.93675517	1.517565
03/17/2061	195.392873	1.31999454	0.29032320	141.452259	287.295452	2.995113	0.93676951	1.516557
03/25/2090	354.842443	1.30334382	0.28362678	141.680607	285.497812	3.077722	0.93368062	1.487953
04/03/2119	175.911258	1.30352137	0.28348694	141.975840	285.264891	3.079161	0.93399008	1.488257
04/10/2148	6.575352	1.30026262	0.28217802	142.501695	284.317908	3.098464	0.93335708	1.482679
04/18/2177	209.568947	1.30398673	0.28363839	143.111181	284.034354	3.090703	0.93412603	1.489054

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