Asteroid General Data

2015 TL₂₁

General information

Preliminary designation	2015 TL₂₁
Group	Apollo
Absolute magnitude	26.42
Approximate diameter (m)	14
Approximate mass (kg)	4.83·10⁶
Number of observations	89
Arc length (days)	11

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	227.171444
a – orbit major semiaxis (astronomical units)	2.59746900
e – orbit eccentricity	0.68066800
ω – orbit ascending node-perihelion angle (degrees)	99.135842
Ω – longitude of orbit ascending node (degrees)	218.955375
i – orbit inclination to the ecliptic plane (degrees)	0.576138

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	203.356784	2.59817630	0.68385555	30.350678	284.324609	0.958721	0.82139901	4.187970
01/21/1858	158.479116	2.61712279	0.67557117	40.930360	274.732857	0.777969	0.84907008	4.233863
01/29/1887	104.568201	2.60533314	0.68109382	42.799444	272.827489	0.767064	0.83085685	4.205286
02/07/1916	61.560272	2.61537321	0.67779539	61.108382	255.562874	0.621765	0.84268532	4.229618
02/14/1945	18.842125	2.58735456	0.67732690	63.401416	253.456782	0.597333	0.83486971	4.161832
02/22/1974	18.049445	2.57454258	0.68473933	88.935159	228.969352	0.552898	0.81165201	4.130958
03/02/2003	4.513136	2.59580215	0.67502435	96.743687	221.381804	0.556399	0.84357249	4.182231
03/09/2032	338.773696	2.59168714	0.68260028	100.008442	218.217349	0.578216	0.82260078	4.172290
03/17/2061	320.639291	2.59912726	0.68057867	123.817431	195.494153	0.686905	0.83021667	4.190269
03/25/2090	322.737842	2.57988785	0.67396869	125.054915	193.837920	0.711091	0.84112422	4.143829
04/03/2119	341.317890	2.56070691	0.68041469	126.858391	192.054629	0.735337	0.81836431	4.097702
04/10/2148	22.101307	2.56029626	0.68527088	145.781940	174.681354	1.013366	0.80579978	4.096717
04/18/2177	37.809339	2.57800630	0.67715540	147.801936	172.873286	1.055912	0.83229541	4.139297

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