Asteroid General Data

2015 TM₂₁

General information

Preliminary designation	2015 TM₂₁
Group	Apollo
Absolute magnitude	25.93
Approximate diameter (m)	17
Approximate mass (kg)	9.50·10⁶
Number of observations	38
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	6.057747
a – orbit major semiaxis (astronomical units)	1.48180400
e – orbit eccentricity	0.34667200
ω – orbit ascending node-perihelion angle (degrees)	40.833062
Ω – longitude of orbit ascending node (degrees)	13.399210
i – orbit inclination to the ecliptic plane (degrees)	18.054028

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	161.048669	1.48222026	0.34511766	38.833742	14.610054	18.200996	0.97067987	1.804553
01/21/1858	196.058752	1.48162835	0.34532274	39.239340	14.409116	18.170457	0.96998839	1.803473
01/29/1887	225.492252	1.48245131	0.34597047	39.459641	14.242389	18.153411	0.96956693	1.804975
02/07/1916	254.012886	1.48183752	0.34583720	39.707128	14.072997	18.139075	0.96936298	1.803854
02/14/1945	287.754810	1.48184321	0.34610785	40.029671	13.887347	18.111524	0.96896565	1.803865
02/22/1974	316.905397	1.48250003	0.34641948	40.281880	13.712169	18.091387	0.96893313	1.805064
03/02/2003	345.428222	1.48207593	0.34641102	40.519631	13.561123	18.079340	0.96866849	1.804290
03/09/2032	18.802822	1.48181454	0.34681675	40.904102	13.362987	18.048825	0.96789644	1.803812
03/17/2061	47.821503	1.48249036	0.34729636	41.108187	13.201661	18.033828	0.96762685	1.805047
03/25/2090	76.333825	1.48150278	0.34722048	41.356392	13.045255	18.023691	0.96709467	1.803243
04/03/2119	109.743396	1.48209638	0.34763528	41.679352	12.845097	17.992796	0.96686739	1.804327
04/10/2148	138.504275	1.48260057	0.34786742	41.897008	12.689839	17.977996	0.96685213	1.805248
04/18/2177	167.611359	1.48179835	0.34772448	42.169093	12.512482	17.963535	0.96654079	1.803783

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