Asteroid General Data

2021 WS₄

General information

Preliminary designation	2021 WS₄
Group	Apollo
Absolute magnitude	30.65
Approximate diameter (m)	2
Approximate mass (kg)	1.40·10⁴
Number of observations	47
Arc length (days)	8

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	69.754424
a – orbit major semiaxis (astronomical units)	1.09800500
e – orbit eccentricity	0.09890500
ω – orbit ascending node-perihelion angle (degrees)	349.531425
Ω – longitude of orbit ascending node (degrees)	67.237476
i – orbit inclination to the ecliptic plane (degrees)	2.761410

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	145.694018	1.09548505	0.10597578	313.379501	101.208153	1.555108	0.97939017	1.146596
01/21/1858	321.327714	1.09074751	0.10337943	318.320719	96.925225	1.559725	0.97798665	1.139166
01/29/1887	187.794290	1.08270200	0.09749678	323.269564	89.867532	1.696656	0.97714204	1.126585
02/07/1916	219.759201	1.06347807	0.08024376	324.287464	80.293804	2.255621	0.97814059	1.096714
02/14/1945	32.067303	1.06080205	0.07796836	326.326165	76.484599	2.283662	0.97809306	1.092577
02/22/1974	216.922296	1.06147216	0.07855718	327.834896	75.624932	2.278700	0.97808589	1.093613
03/02/2003	33.492291	1.06900579	0.08190045	331.508714	70.995824	2.332728	0.98145374	1.105276
03/09/2032	342.916743	1.09815400	0.09900279	349.509531	67.214897	2.760977	0.98943368	1.150788
03/17/2061	45.066183	1.10165774	0.10130979	350.175559	66.643302	2.752580	0.99004903	1.156300
03/25/2090	89.974037	1.09968545	0.10007401	350.659211	66.196391	2.755663	0.98963552	1.153197
04/03/2119	156.178249	1.09899730	0.09947216	350.849277	65.961820	2.755378	0.98967767	1.152114
04/10/2148	202.478210	1.10093779	0.10074891	351.181713	65.573653	2.750318	0.99001951	1.155167
04/18/2177	255.905242	1.09901837	0.09951428	351.643643	65.163172	2.751523	0.98965034	1.152147

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