Asteroid General Data

2018 SD₁

General information

Preliminary designation	2018 SD₁
Group	Apollo
Absolute magnitude	24.60
Approximate diameter (m)	32
Approximate mass (kg)	5.97·10⁷
Number of observations	90
Arc length (days)	15

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	42.730097
a – orbit major semiaxis (astronomical units)	1.09685700
e – orbit eccentricity	0.43351900
ω – orbit ascending node-perihelion angle (degrees)	70.239475
Ω – longitude of orbit ascending node (degrees)	177.220567
i – orbit inclination to the ecliptic plane (degrees)	18.064232

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	238.151467	1.09134631	0.43168476	69.104664	178.526629	18.057760	0.62022874	1.140104
01/21/1858	13.621074	1.09478676	0.43319749	69.144355	178.325460	18.028757	0.62052789	1.145500
01/29/1887	139.991472	1.09437091	0.43307233	69.335016	178.133269	18.022461	0.62042915	1.144847
02/07/1916	268.612230	1.09368897	0.43300640	69.414386	177.955429	18.041594	0.62011465	1.143777
02/14/1945	27.645246	1.09591792	0.43355265	69.671422	177.747481	18.032752	0.62077980	1.147275
02/22/1974	132.729890	1.09636857	0.43353240	69.905926	177.574015	18.042722	0.62105727	1.147983
03/02/2003	226.319871	1.09714941	0.43381217	70.058931	177.374820	18.038483	0.62119264	1.149210
03/09/2032	318.757066	1.09692249	0.43356479	70.262966	177.199441	18.064256	0.62133553	1.148853
03/17/2061	67.952314	1.09663648	0.43396175	70.463386	176.993657	18.047381	0.62073820	1.148404
03/25/2090	160.691299	1.09748378	0.43437742	70.561762	176.810016	18.040227	0.62076161	1.149735
04/03/2119	250.731233	1.09697398	0.43430778	70.745146	176.629091	18.041994	0.62054964	1.148934
04/10/2148	332.445745	1.09829025	0.43477246	70.877141	176.442588	18.033183	0.62078390	1.151003
04/18/2177	52.906412	1.09779964	0.43468402	70.994875	176.267954	18.033931	0.62060368	1.150231

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