Asteroid General Data

2021 TP₂₁

General information

Preliminary designation	2021 TP₂₁
Group	Apollo
Absolute magnitude	20.19
Approximate diameter (m)	240
Approximate mass (kg)	2.64·10¹⁰
Number of observations	76
Arc length (days)	2969

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	67.760459
a – orbit major semiaxis (astronomical units)	2.51859100
e – orbit eccentricity	0.67752300
ω – orbit ascending node-perihelion angle (degrees)	116.329288
Ω – longitude of orbit ascending node (degrees)	8.046408
i – orbit inclination to the ecliptic plane (degrees)	25.416074

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	259.480797	2.48372987	0.69963452	113.129329	12.521195	24.908675	0.74602670	3.914327
01/21/1858	38.724524	2.49939937	0.69013063	113.986741	11.380242	25.004203	0.77448731	3.951428
01/29/1887	154.154149	2.51030178	0.68335702	114.804885	10.419173	25.104943	0.79486943	3.977311
02/07/1916	248.766041	2.52519137	0.67534772	115.356726	9.659152	25.155194	0.81980913	4.012750
02/14/1945	327.199350	2.53194792	0.67194773	115.497769	9.328616	25.163866	0.83061127	4.028865
02/22/1974	39.506642	2.53288388	0.67160403	115.512866	9.098570	25.186949	0.83178886	4.031100
03/02/2003	114.160712	2.52900131	0.67399805	115.759772	8.697034	25.261802	0.82445935	4.021834
03/09/2032	200.739969	2.51751722	0.67808268	116.494721	7.802603	25.436665	0.81043239	3.994471
03/17/2061	309.291883	2.50049738	0.68383648	117.816310	6.504372	25.804988	0.79056606	3.954032
03/25/2090	80.277899	2.48962698	0.68745690	118.968724	5.339012	26.096073	0.77811573	3.928276
04/03/2119	234.071177	2.47389954	0.69292957	119.955003	4.252781	26.416716	0.75966140	3.891112
04/10/2148	42.750419	2.47020958	0.69486368	120.328410	3.796007	26.528660	0.75375065	3.882409
04/18/2177	216.349708	2.46887582	0.69495150	120.409472	3.526002	26.582378	0.75312688	3.879265

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