Asteroid General Data

2021 WK

General information

Preliminary designation	2021 WK
Group	Apollo
Absolute magnitude	26.41
Approximate diameter (m)	14
Approximate mass (kg)	4.90·10⁶
Number of observations	36
Arc length (days)	4

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	108.567420
a – orbit major semiaxis (astronomical units)	1.29686500
e – orbit eccentricity	0.23994800
ω – orbit ascending node-perihelion angle (degrees)	336.670165
Ω – longitude of orbit ascending node (degrees)	58.719257
i – orbit inclination to the ecliptic plane (degrees)	8.271426

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	319.422953	1.29416317	0.23857050	334.032180	60.272355	8.242801	0.98541402	1.472259
01/21/1858	218.075439	1.29289657	0.23760015	334.217499	60.030665	8.261867	0.98570415	1.470098
01/29/1887	127.848368	1.29185935	0.23727402	334.486826	59.821327	8.267149	0.98533469	1.468329
02/07/1916	35.876643	1.29304028	0.23770844	334.784763	59.649677	8.266516	0.98567369	1.470343
02/14/1945	292.961077	1.29421876	0.23861507	335.153033	59.455294	8.254693	0.98539866	1.472354
02/22/1974	195.879388	1.29336586	0.23830590	335.480396	59.211256	8.255010	0.98514915	1.470898
03/02/2003	107.089732	1.29260848	0.23784582	335.814251	58.967996	8.261456	0.98516695	1.469607
03/09/2032	3.431144	1.29665721	0.23977041	336.727418	58.698150	8.271862	0.98575718	1.476517
03/17/2061	236.038145	1.29735380	0.23992416	336.999251	58.484269	8.277868	0.98608728	1.477707
03/25/2090	102.126455	1.30096737	0.24179340	337.649811	58.222586	8.277465	0.98640205	1.483885
04/03/2119	305.697718	1.30042256	0.24147244	337.843626	58.104014	8.277088	0.98640635	1.482953
04/10/2148	154.258200	1.29902379	0.24049043	338.146179	57.822626	8.298665	0.98662100	1.480561
04/18/2177	7.581851	1.29986347	0.24104267	338.540541	57.593993	8.295845	0.98654091	1.481997

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