Asteroid General Data

2021 SN₁

General information

Preliminary designation	2021 SN₁
Group	Apollo
Absolute magnitude	21.04
Approximate diameter (m)	160
Approximate mass (kg)	8.16·10⁹
Number of observations	92
Arc length (days)	5375

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	359.707789
a – orbit major semiaxis (astronomical units)	1.78662800
e – orbit eccentricity	0.77926400
ω – orbit ascending node-perihelion angle (degrees)	284.869954
Ω – longitude of orbit ascending node (degrees)	208.322924
i – orbit inclination to the ecliptic plane (degrees)	12.380145

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	135.998180	1.78468779	0.78090855	276.364750	216.770570	12.063215	0.39100984	2.384207
01/21/1858	191.550798	1.78721361	0.77873142	278.452665	214.764737	12.123612	0.39545423	2.389270
01/29/1887	238.133431	1.78976433	0.77712391	279.654361	213.556511	12.166890	0.39889568	2.394387
02/07/1916	278.059682	1.79130562	0.77547093	280.827972	212.378491	12.201922	0.40220019	2.397481
02/14/1945	320.739263	1.78928987	0.77528740	281.567174	211.563553	12.221667	0.40207597	2.393435
02/22/1974	3.350782	1.78952736	0.77673989	282.605428	210.526205	12.262823	0.39953008	2.393912
03/02/2003	51.423068	1.78714283	0.77772893	283.680485	209.467672	12.322995	0.39723014	2.389128
03/09/2032	104.958695	1.78729717	0.77912690	284.964364	208.223541	12.378581	0.39476586	2.389438
03/17/2061	165.226955	1.78347173	0.78090092	286.919721	206.365163	12.496116	0.39075702	2.381771
03/25/2090	234.203739	1.78229127	0.78162850	288.493545	204.872083	12.597385	0.38920161	2.379406
04/03/2119	304.237187	1.78107971	0.78236395	290.712767	202.780347	12.756097	0.38762716	2.376981
04/10/2148	18.588000	1.78085013	0.78243058	292.341255	201.253213	12.883220	0.38745853	2.376521
04/18/2177	99.000437	1.77818799	0.78215262	294.529879	199.223785	13.074134	0.38737360	2.371194

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