Asteroid General Data

2021 AF₄

General information

Preliminary designation	2021 AF₄
Group	Apollo
Absolute magnitude	20.72
Approximate diameter (m)	190
Approximate mass (kg)	1.27·10¹⁰
Number of observations	46
Arc length (days)	51

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	212.612149
a – orbit major semiaxis (astronomical units)	2.38271100
e – orbit eccentricity	0.79112600
ω – orbit ascending node-perihelion angle (degrees)	9.005525
Ω – longitude of orbit ascending node (degrees)	20.422190
i – orbit inclination to the ecliptic plane (degrees)	8.983820

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	327.445803	2.38551573	0.78926500	4.980910	22.967707	10.104819	0.50271166	3.684462
01/21/1858	290.352536	2.38068661	0.79155847	5.129499	22.823053	10.110779	0.49623396	3.673279
01/29/1887	241.374249	2.38501507	0.79034747	6.089128	22.261675	9.794750	0.50002444	3.683302
02/07/1916	205.520292	2.38385684	0.79051673	6.391663	22.054061	9.732362	0.49937812	3.680619
02/14/1945	153.776698	2.38446511	0.79072768	7.433838	21.420003	9.432790	0.49900253	3.682028
02/22/1974	116.231771	2.38781222	0.78916817	7.769879	21.192110	9.315201	0.50342683	3.689783
03/02/2003	65.868191	2.38278974	0.79156237	8.888330	20.523399	9.030938	0.49666306	3.678148
03/09/2032	26.078280	2.39226764	0.78673539	9.438131	20.128726	8.797715	0.51018603	3.700115
03/17/2061	340.704806	2.37934362	0.79297692	10.310330	19.585224	8.642662	0.49257904	3.670172
03/25/2090	299.581791	2.39098727	0.78815193	11.442407	18.760047	8.245442	0.50652604	3.697145
04/03/2119	256.222593	2.38075449	0.79351036	11.988818	18.353056	8.209108	0.49160113	3.673436
04/10/2148	208.241733	2.39154326	0.79112196	13.050193	17.543344	7.899943	0.49954088	3.698435
04/18/2177	169.143625	2.38055643	0.79393833	13.803502	16.941690	7.775408	0.49054143	3.672978

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