Asteroid General Data

1998 SO (369986)

General information

Preliminary designation	1998 SO
Number	369986
Group	Aten
Absolute magnitude	20.44
Approximate diameter (m)	220
Approximate mass (kg)	1.87·10¹⁰
Number of observations	306
Arc length (days)	9844

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	100.213943
a – orbit major semiaxis (astronomical units)	0.73143600
e – orbit eccentricity	0.69861300
ω – orbit ascending node-perihelion angle (degrees)	359.867368
Ω – longitude of orbit ascending node (degrees)	176.134131
i – orbit inclination to the ecliptic plane (degrees)	30.348109

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	81.666317	0.73145587	0.69868000	359.369874	176.594278	30.310030	0.22040228	0.625580
01/21/1858	224.890611	0.73131249	0.69865317	359.437791	176.537299	30.323998	0.22037870	0.625396
01/29/1887	9.060574	0.73121214	0.69875846	359.511996	176.468367	30.328135	0.22027147	0.625267
02/07/1916	155.132970	0.73127843	0.69884665	359.579080	176.399481	30.325349	0.22022695	0.625352
02/14/1945	302.768572	0.73141399	0.69879880	359.655437	176.322322	30.323037	0.22030277	0.625526
02/22/1974	88.239303	0.73133676	0.69865953	359.727735	176.251475	30.338578	0.22038136	0.625427
03/02/2003	230.020847	0.73132439	0.69857070	359.808885	176.183627	30.350544	0.22044260	0.625411
03/09/2032	11.762060	0.73133946	0.69856388	359.884166	176.120712	30.351847	0.22045213	0.625431
03/17/2061	156.353227	0.73140499	0.69866193	359.959701	176.056218	30.347226	0.22040017	0.625515
03/25/2090	304.130097	0.73129258	0.69872400	0.041102	175.984414	30.352523	0.22032090	0.625370
04/03/2119	91.855596	0.73115077	0.69873735	0.106564	175.915472	30.363713	0.22026841	0.625189
04/10/2148	239.136687	0.73118244	0.69876278	0.176292	175.844777	30.368164	0.22025937	0.625229
04/18/2177	25.887106	0.73136745	0.69872718	0.243450	175.776542	30.371292	0.22034113	0.625466

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