Asteroid General Data

2004 SD₂₀ (333478)

General information

Preliminary designation	2004 SD₂₀
Number	333478
Group	Aten
Absolute magnitude	18.05
Approximate diameter (m)	650
Approximate mass (kg)	5.08·10¹¹
Number of observations	229
Arc length (days)	7665

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	201.109278
a – orbit major semiaxis (astronomical units)	0.87542600
e – orbit eccentricity	0.46494600
ω – orbit ascending node-perihelion angle (degrees)	94.513840
Ω – longitude of orbit ascending node (degrees)	46.540751
i – orbit inclination to the ecliptic plane (degrees)	21.329248

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	239.600950	0.87498698	0.46467703	93.721020	47.695377	21.375629	0.46840063	0.818470
01/21/1858	38.758161	0.87577676	0.46467730	93.745588	47.514704	21.373193	0.46882318	0.819579
01/29/1887	163.988600	0.87734868	0.46501542	93.667850	47.348128	21.357474	0.46936801	0.821786
02/07/1916	276.151967	0.87738348	0.46498098	93.739076	47.179050	21.358585	0.46941685	0.821835
02/14/1945	36.183889	0.87681280	0.46513431	93.747480	46.999135	21.339092	0.46897708	0.821034
02/22/1974	149.869466	0.87742761	0.46530511	93.959547	46.837718	21.325038	0.46915605	0.821897
03/02/2003	288.290835	0.87509892	0.46494842	94.356793	46.670399	21.333797	0.46822307	0.818628
03/09/2032	87.000830	0.87580829	0.46506755	94.550367	46.512542	21.316942	0.46849828	0.819623
03/17/2061	239.199626	0.87523750	0.46520414	94.582484	46.327617	21.297951	0.46807339	0.818822
03/25/2090	39.971789	0.87522087	0.46507836	94.649317	46.161981	21.301080	0.46817458	0.818799
04/03/2119	191.622235	0.87624413	0.46519939	94.638910	45.984769	21.295357	0.46861590	0.820235
04/10/2148	314.624348	0.87722580	0.46536149	94.630064	45.816708	21.287745	0.46899870	0.821614
04/18/2177	69.462634	0.87722707	0.46533441	94.704048	45.643635	21.288757	0.46902313	0.821616

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