Asteroid General Data

2025 SY₁

General information

Preliminary designation	2025 SY₁
Group	Aten
Absolute magnitude	31.66
Approximate diameter (m)	1
Approximate mass (kg)	3.47·10³
Number of observations	63
Arc length (days)	0

Approaches

Date	Object	r, AU	r, km
09/19/2025 10:19:12 AM	Earth	0.000383	57 247

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	298.344903
a – orbit major semiaxis (astronomical units)	0.94371035
e – orbit eccentricity	0.24632230
ω – orbit ascending node-perihelion angle (degrees)	298.145523
Ω – longitude of orbit ascending node (degrees)	176.653852
i – orbit inclination to the ecliptic plane (degrees)	3.946736

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	273.020750	0.97988381	0.25040281	263.534760	205.370786	0.727346	0.73451815	0.969979
01/21/1858	252.996543	0.97952828	0.25061424	266.132318	202.875186	0.735251	0.73404454	0.969451
01/29/1887	267.754550	0.97605532	0.25037756	266.634687	201.921176	0.728243	0.73167297	0.964300
02/07/1916	266.746272	0.97924192	0.25060889	267.370027	200.740089	0.745702	0.73383519	0.969026
02/14/1945	307.028911	0.97392563	0.25084643	275.933198	190.890707	0.517499	0.72961986	0.961146
02/22/1974	359.471840	0.97523950	0.25135955	281.394070	185.712079	0.527979	0.73010374	0.963091
03/02/2003	56.099205	0.97187375	0.25100209	285.209642	182.337012	0.533655	0.72793140	0.958110
03/09/2032	288.562223	0.94366502	0.24632485	298.154235	176.637456	3.947026	0.71121687	0.916700
03/17/2061	296.981328	0.95905486	0.24192414	294.672178	175.883847	4.045207	0.72703633	0.939217
03/25/2090	227.762321	0.96125901	0.24150455	294.733812	175.263672	4.053124	0.72911059	0.942456
04/03/2119	325.143257	0.97930894	0.24129621	291.648729	174.346573	3.664165	0.74300540	0.969126
04/10/2148	257.616136	0.98456843	0.24073558	290.906218	173.579270	3.586935	0.74754778	0.976944
04/18/2177	151.905428	0.98419178	0.24088709	291.360960	172.853913	3.573309	0.74711269	0.976383

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