Asteroid General Data

2015 TK₂₁

General information

Preliminary designation	2015 TK₂₁
Group	Apollo
Absolute magnitude	26.14
Approximate diameter (m)	16
Approximate mass (kg)	7.11·10⁶
Number of observations	55
Arc length (days)	3

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	42.820025
a – orbit major semiaxis (astronomical units)	1.20709800
e – orbit eccentricity	0.37683700
ω – orbit ascending node-perihelion angle (degrees)	110.248302
Ω – longitude of orbit ascending node (degrees)	352.189447
i – orbit inclination to the ecliptic plane (degrees)	1.452821

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	39.053666	1.20643550	0.37632556	105.686793	356.755358	1.743913	0.75242299	1.325125
01/21/1858	354.821734	1.20813404	0.37692558	106.029122	356.581219	1.738297	0.75275742	1.327924
01/29/1887	302.245156	1.20789447	0.37704383	106.195016	356.198302	1.713345	0.75246531	1.327529
02/07/1916	250.974517	1.20739579	0.37723070	107.174413	355.400480	1.670824	0.75192903	1.326707
02/14/1945	201.108302	1.20724409	0.37754317	108.185439	354.277783	1.546734	0.75145733	1.326457
02/22/1974	162.008723	1.20615403	0.37703354	108.523338	353.901195	1.535455	0.75139351	1.324661
03/02/2003	130.039072	1.20634163	0.37670765	109.047455	353.548960	1.526047	0.75190350	1.324970
03/09/2032	89.054524	1.20766864	0.37720118	110.363783	352.191114	1.448446	0.75213461	1.327157
03/17/2061	34.425763	1.21150377	0.37795687	111.264996	351.789797	1.422898	0.75360760	1.333484
03/25/2090	273.246698	1.21478907	0.37840886	112.364399	351.193387	1.388589	0.75510213	1.338912
04/03/2119	178.151744	1.20871938	0.37662467	113.810203	350.402862	1.363713	0.75348584	1.328889
04/10/2148	124.103745	1.20868763	0.37673799	114.120360	350.313593	1.356063	0.75332908	1.328837
04/18/2177	47.915982	1.21464662	0.37773784	115.560856	349.488568	1.305922	0.75582863	1.338676

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