Asteroid General Data

2021 TD

General information

Preliminary designation	2021 TD
Group	Apollo
Absolute magnitude	26.63
Approximate diameter (m)	13
Approximate mass (kg)	3.61·10⁶
Number of observations	15
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	169.336135
a – orbit major semiaxis (astronomical units)	2.27172800
e – orbit eccentricity	0.58378900
ω – orbit ascending node-perihelion angle (degrees)	321.617078
Ω – longitude of orbit ascending node (degrees)	10.627437
i – orbit inclination to the ecliptic plane (degrees)	7.612691

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	188.691675	2.26491839	0.58817187	315.560768	15.043392	7.252340	0.93275710	3.408627
01/21/1858	14.298839	2.26493789	0.58805406	316.580556	14.321813	7.312158	0.93303197	3.408671
01/29/1887	198.636703	2.26393897	0.58821084	317.494442	13.621723	7.367442	0.93226552	3.406416
02/07/1916	24.181110	2.26211566	0.58696119	318.362513	12.962829	7.422107	0.93434156	3.402302
02/14/1945	208.042505	2.26941605	0.58416216	319.441373	12.279527	7.473800	0.94370906	3.418785
02/22/1974	28.691525	2.26752615	0.58265267	320.103653	11.802055	7.504136	0.94634597	3.414515
03/02/2003	207.325845	2.26789761	0.58373930	320.913027	11.121187	7.548209	0.94403664	3.415354
03/09/2032	26.218762	2.26812486	0.58518126	321.772936	10.529246	7.632818	0.94086070	3.415868
03/17/2061	203.493202	2.26557897	0.58610626	322.586335	9.917679	7.682252	0.93770895	3.410118
03/25/2090	20.240492	2.26817225	0.58586145	323.426815	9.303361	7.727699	0.93933756	3.415975
04/03/2119	197.983414	2.26789678	0.58670274	324.319646	8.731054	7.784952	0.93731553	3.415353
04/10/2148	13.130200	2.27143710	0.58442589	325.640069	7.974581	7.856367	0.94395046	3.423353
04/18/2177	186.851833	2.27144602	0.58307805	326.178548	7.578431	7.887256	0.94701570	3.423373

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