Asteroid General Data

2021 AD₄

General information

Preliminary designation	2021 AD₄
Group	Aten
Absolute magnitude	25.65
Approximate diameter (m)	20
Approximate mass (kg)	1.40·10⁷
Number of observations	42
Arc length (days)	9

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	15.979636
a – orbit major semiaxis (astronomical units)	0.90734600
e – orbit eccentricity	0.08828300
ω – orbit ascending node-perihelion angle (degrees)	194.318567
Ω – longitude of orbit ascending node (degrees)	106.541878
i – orbit inclination to the ecliptic plane (degrees)	9.462162

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	249.234906	0.87839718	0.12199586	186.744377	109.478512	9.120144	0.77123636	0.823260
01/21/1858	329.553144	0.87999989	0.11975073	187.710948	109.065921	9.146992	0.77461926	0.825514
01/29/1887	0.766833	0.88260479	0.11615793	188.621971	108.592676	9.194039	0.78008325	0.829182
02/07/1916	273.864349	0.89922174	0.09551267	191.523246	108.048440	9.386659	0.81333467	0.852709
02/14/1945	258.131983	0.90455773	0.08993268	192.897415	107.608337	9.428687	0.82320843	0.860310
02/22/1974	157.225427	0.90474707	0.09123629	193.002551	107.386315	9.433993	0.82220131	0.860580
03/02/2003	317.140454	0.91015623	0.08510139	194.243396	106.924033	9.480320	0.83270066	0.868309
03/09/2032	136.148556	0.90755729	0.08824895	194.319972	106.506352	9.463218	0.82746631	0.864593
03/17/2061	339.832274	0.90698865	0.08908626	194.688813	106.101333	9.458315	0.82618842	0.863780
03/25/2090	211.028856	0.90585962	0.09078246	194.465630	105.780568	9.447845	0.82362346	0.862168
04/03/2119	101.153372	0.90536248	0.09101066	194.429858	105.428744	9.444085	0.82296485	0.861458
04/10/2148	356.649823	0.90538162	0.09082953	194.637495	105.020289	9.444087	0.82314623	0.861486
04/18/2177	246.851180	0.90568996	0.09070248	194.822022	104.669747	9.445635	0.82354164	0.861926

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