Asteroid General Data

2021 SK

General information

Preliminary designation	2021 SK
Group	Apollo
Absolute magnitude	25.36
Approximate diameter (m)	23
Approximate mass (kg)	2.09·10⁷
Number of observations	16
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	218.199914
a – orbit major semiaxis (astronomical units)	1.02739100
e – orbit eccentricity	0.39435900
ω – orbit ascending node-perihelion angle (degrees)	293.590643
Ω – longitude of orbit ascending node (degrees)	178.643539
i – orbit inclination to the ecliptic plane (degrees)	5.433848

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	104.695331	1.02461682	0.39365580	291.521580	181.304200	5.535873	0.62127047	1.037153
01/21/1858	83.158818	1.02591228	0.39360876	291.771989	180.932232	5.535005	0.62210422	1.039121
01/29/1887	57.357983	1.02414130	0.39373435	292.302547	180.548581	5.534350	0.62090169	1.036431
02/07/1916	52.656243	1.02277991	0.39404660	292.839271	180.184719	5.531038	0.61975696	1.034365
02/14/1945	70.219375	1.02584388	0.39421463	292.840927	179.757102	5.474779	0.62144122	1.039017
02/22/1974	42.623108	1.02608726	0.39432357	293.277686	179.295177	5.475207	0.62147687	1.039386
03/02/2003	9.576845	1.02864742	0.39444689	293.228501	178.933432	5.428855	0.62290064	1.043279
03/09/2032	310.335583	1.02807866	0.39470826	293.769755	178.475073	5.430541	0.62228752	1.042414
03/17/2061	246.588334	1.02880920	0.39456674	294.004584	178.105907	5.423864	0.62287530	1.043525
03/25/2090	170.785681	1.02987382	0.39471495	294.393509	177.632193	5.410326	0.62336723	1.045145
04/03/2119	100.774791	1.02794155	0.39463968	294.876498	177.325703	5.411175	0.62227503	1.042205
04/10/2148	55.929127	1.02638015	0.39413204	295.286396	176.938391	5.418629	0.62185085	1.039832
04/18/2177	22.893562	1.02654430	0.39427235	295.688990	176.488550	5.411640	0.62180626	1.040081

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