Asteroid General Data

2021 TK

General information

Preliminary designation	2021 TK
Group	Apollo
Absolute magnitude	26.04
Approximate diameter (m)	16
Approximate mass (kg)	8.16·10⁶
Number of observations	53
Arc length (days)	4

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	359.967433
a – orbit major semiaxis (astronomical units)	1.37934500
e – orbit eccentricity	0.30271900
ω – orbit ascending node-perihelion angle (degrees)	41.991672
Ω – longitude of orbit ascending node (degrees)	7.505718
i – orbit inclination to the ecliptic plane (degrees)	10.953260

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	320.314533	1.38006098	0.30238933	39.848457	8.881799	11.069964	0.96274527	1.621243
01/21/1858	295.390796	1.37862044	0.30182183	40.216960	8.671440	11.064075	0.96252270	1.618705
01/29/1887	271.304115	1.37904884	0.30214583	40.461330	8.471645	11.048873	0.96237498	1.619459
02/07/1916	242.957959	1.37882429	0.30201409	40.724384	8.300870	11.040615	0.96239993	1.619064
02/14/1945	213.072716	1.37897265	0.30212919	40.993900	8.105560	11.025572	0.96234476	1.619325
02/22/1974	185.843682	1.37754278	0.30156975	41.398108	7.893798	11.017704	0.96211754	1.616807
03/02/2003	163.810960	1.37824677	0.30191603	41.617266	7.701152	11.001638	0.96213198	1.618047
03/09/2032	136.877031	1.37936509	0.30292164	42.050891	7.473981	10.949651	0.96152555	1.620017
03/17/2061	105.763089	1.37988140	0.30320490	42.278604	7.274807	10.937328	0.96149460	1.620926
03/25/2090	75.100336	1.37934926	0.30309664	42.602883	7.085745	10.927238	0.96127313	1.619989
04/03/2119	44.079561	1.37904066	0.30338966	43.046654	6.867708	10.880987	0.96065398	1.619445
04/10/2148	11.400923	1.38001059	0.30385244	43.273656	6.672952	10.868053	0.96069101	1.621154
04/18/2177	342.780744	1.37919107	0.30354937	43.609521	6.468800	10.859439	0.96053849	1.619710

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