Asteroid General Data

1998 XM₄ (85818)

General information

Preliminary designation	1998 XM₄
Number	85818
Group	Apollo
Absolute magnitude	15.42
Approximate diameter (m)	2 200
Approximate mass (kg)	1.92·10¹³
Number of observations	1501
Arc length (days)	11841

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	270.091786
a – orbit major semiaxis (astronomical units)	1.65660300
e – orbit eccentricity	0.41608700
ω – orbit ascending node-perihelion angle (degrees)	301.208775
Ω – longitude of orbit ascending node (degrees)	235.636066
i – orbit inclination to the ecliptic plane (degrees)	62.718081

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	16.220001	1.65676603	0.42538394	302.008603	236.159268	62.577235	0.95200437	2.132516
01/21/1858	236.287089	1.65685567	0.42391772	301.863300	236.084522	62.597108	0.95448519	2.132689
01/29/1887	96.019967	1.65669749	0.42270454	301.772548	236.004786	62.619447	0.95640395	2.132384
02/07/1916	315.489636	1.65672592	0.42131180	301.667171	235.925743	62.641747	0.95872774	2.132439
02/14/1945	174.967622	1.65678519	0.41992762	301.542109	235.850030	62.656983	0.96105534	2.132553
02/22/1974	34.779460	1.65675805	0.41852455	301.435476	235.780377	62.675321	0.96336413	2.132501
03/02/2003	254.757829	1.65660725	0.41719440	301.304932	235.697635	62.701367	0.96547998	2.132210
03/09/2032	114.473359	1.65666940	0.41584748	301.217968	235.622080	62.720318	0.96774760	2.132330
03/17/2061	334.058354	1.65675591	0.41439872	301.079283	235.547648	62.742753	0.97019839	2.132497
03/25/2090	193.617882	1.65671620	0.41323783	300.986085	235.469409	62.766233	0.97209839	2.132420
04/03/2119	53.452188	1.65670481	0.41176873	300.874439	235.389998	62.791779	0.97452558	2.132398
04/10/2148	273.384900	1.65674634	0.41060102	300.755259	235.312222	62.808493	0.97648461	2.132478
04/18/2177	133.147393	1.65667632	0.40939116	300.620283	235.244963	62.819952	0.97844768	2.132343

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