Asteroid General Data

2021 TC₂₁

General information

Preliminary designation	2021 TC₂₁
Group	Apollo
Absolute magnitude	26.40
Approximate diameter (m)	14
Approximate mass (kg)	4.96·10⁶
Number of observations	110
Arc length (days)	3

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	276.893013
a – orbit major semiaxis (astronomical units)	1.98659900
e – orbit eccentricity	0.49695100
ω – orbit ascending node-perihelion angle (degrees)	157.919706
Ω – longitude of orbit ascending node (degrees)	209.282081
i – orbit inclination to the ecliptic plane (degrees)	1.632019

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	10.979999	1.98592490	0.49624253	147.179368	218.320181	1.339204	1.00042449	2.798626
01/21/1858	128.453750	1.99151898	0.49871953	148.404403	217.441623	1.369451	0.99830957	2.810459
01/29/1887	249.548634	1.98821814	0.49675148	150.418420	215.673059	1.406037	1.00056783	2.803475
02/07/1916	27.909425	1.98079249	0.49649403	154.065705	212.167977	1.526794	0.99734085	2.787784
02/14/1945	174.011112	1.98357886	0.49599122	154.938920	211.551097	1.544164	0.99974117	2.793668
02/22/1974	323.252976	1.97811859	0.49526354	156.379721	210.274264	1.581054	0.99842857	2.782141
03/02/2003	115.607512	1.97895705	0.49564828	157.183489	209.742121	1.599344	0.99809038	2.783910
03/09/2032	260.447065	1.98647089	0.49691155	158.216288	209.136733	1.640196	0.99937057	2.799780
03/17/2061	19.301821	1.99171877	0.49866993	158.923902	208.646771	1.655322	0.99850852	2.810882
03/25/2090	138.960120	1.98754453	0.49767757	160.071177	207.837608	1.683965	0.99838819	2.802050
04/03/2119	277.594307	1.98235418	0.49621296	161.792266	206.098770	1.825972	0.99868434	2.791081
04/10/2148	60.985947	1.98198466	0.49729088	162.521541	205.637583	1.848136	0.99636176	2.790301
04/18/2177	209.571865	1.97876592	0.49486715	164.072989	204.176149	2.022981	0.99953968	2.783507

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