Asteroid General Data

2021 TT

General information

Preliminary designation	2021 TT
Group	Apollo
Absolute magnitude	27.88
Approximate diameter (m)	7
Approximate mass (kg)	6.43·10⁵
Number of observations	18
Arc length (days)	7

Approaches

Date	Object	r, AU	r, km
09/30/2021 02:24:00 PM	Earth	0.000885	132 433

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	337.769549
a – orbit major semiaxis (astronomical units)	1.89658651
e – orbit eccentricity	0.54020914
ω – orbit ascending node-perihelion angle (degrees)	309.329138
Ω – longitude of orbit ascending node (degrees)	7.363648
i – orbit inclination to the ecliptic plane (degrees)	17.977366

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	69.860011	1.98875176	0.56184578	306.953140	10.575921	17.118338	0.87137997	2.804604
01/21/1858	194.729227	1.98870624	0.56038906	307.392623	10.223025	17.164182	0.87425702	2.804507
01/29/1887	320.269728	1.98835137	0.56067344	308.087601	9.630018	17.242159	0.87353557	2.803757
02/07/1916	85.944161	1.98788067	0.55952580	308.663606	9.197112	17.311706	0.87561016	2.802761
02/14/1945	221.002653	1.98441755	0.55866672	309.119494	8.699675	17.387203	0.87578950	2.795440
02/22/1974	359.315098	1.98313193	0.55853033	309.806348	8.192939	17.468835	0.87549260	2.792724
03/02/2003	139.757209	1.98440888	0.55728856	310.194350	7.836813	17.501498	0.87852051	2.795422
03/09/2032	12.301215	1.89678926	0.53949679	309.348443	7.331629	17.979824	0.87347753	2.612337
03/17/2061	50.041089	1.89743416	0.53877094	309.785725	6.985605	18.023736	0.87515177	2.613670
03/25/2090	86.762579	1.89761291	0.53886439	310.405412	6.505478	18.093580	0.87505688	2.614039
04/03/2119	121.893131	1.89815962	0.53884279	310.861174	6.154789	18.139139	0.87535000	2.615169
04/10/2148	154.638143	1.89885298	0.53798905	311.435166	5.738701	18.206459	0.87729086	2.616602
04/18/2177	186.321561	1.89928554	0.53770673	311.869146	5.395209	18.256046	0.87802693	2.617496

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