Asteroid General Data

2018 XS₄

General information

Preliminary designation	2018 XS₄
Group	Apollo
Absolute magnitude	25.19
Approximate diameter (m)	24
Approximate mass (kg)	2.64·10⁷
Number of observations	78
Arc length (days)	31

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	8.289712
a – orbit major semiaxis (astronomical units)	2.45134600
e – orbit eccentricity	0.59426200
ω – orbit ascending node-perihelion angle (degrees)	173.810564
Ω – longitude of orbit ascending node (degrees)	266.019000
i – orbit inclination to the ecliptic plane (degrees)	6.383596

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	146.752151	2.50960943	0.57244936	161.384263	271.402920	5.436662	1.07298512	3.975665
01/21/1858	260.119127	2.49932870	0.57206989	164.697831	270.068266	5.653318	1.06953799	3.951261
01/29/1887	20.377321	2.49735449	0.57093417	167.144075	269.102618	5.791298	1.07152947	3.946580
02/07/1916	147.946334	2.48672944	0.57453141	170.505979	267.841271	6.000041	1.05802528	3.921421
02/14/1945	300.542085	2.47238606	0.58260746	172.316973	267.139201	6.148672	1.03195551	3.887542
02/22/1974	123.567897	2.45589698	0.59480679	173.328763	266.523692	6.289602	0.99511278	3.848716
03/02/2003	321.183795	2.45319604	0.59725073	173.444928	266.291843	6.319732	0.98802291	3.842368
03/09/2032	161.929957	2.45402131	0.59295845	173.844162	266.005675	6.380652	0.99888863	3.844307
03/17/2061	343.321207	2.47122537	0.58097152	174.700822	265.491495	6.299237	1.03551380	3.884804
03/25/2090	136.904324	2.48499272	0.57252742	176.785402	264.742122	6.301779	1.06226625	3.917313
04/03/2119	294.826793	2.46463012	0.57995808	179.185195	264.036451	6.404682	1.03524797	3.869263
04/10/2148	128.940807	2.44965768	0.58800466	179.956893	263.606408	6.502647	1.00924754	3.834058
04/18/2177	340.467795	2.44685772	0.59063559	179.920469	263.421293	6.527570	1.00165647	3.827487

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