Asteroid General Data

2021 TO₅₇

General information

Preliminary designation	2021 TO₅₇
Group	Apollo
Absolute magnitude	21.05
Approximate diameter (m)	160
Approximate mass (kg)	8.05·10⁹
Number of observations	79
Arc length (days)	2169

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	196.863509
a – orbit major semiaxis (astronomical units)	2.07233900
e – orbit eccentricity	0.59069400
ω – orbit ascending node-perihelion angle (degrees)	157.101899
Ω – longitude of orbit ascending node (degrees)	338.421217
i – orbit inclination to the ecliptic plane (degrees)	11.983987

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	153.040125	2.06547857	0.59368465	155.229451	340.303488	11.859176	0.83923566	2.968463
01/21/1858	61.903248	2.07332775	0.58734456	155.557521	340.116270	11.819027	0.85556998	2.985400
01/29/1887	318.815846	2.07604744	0.58401823	155.766339	339.952836	11.801425	0.86359789	2.991276
02/07/1916	209.195161	2.07792829	0.58173402	155.867346	339.759622	11.792969	0.86912671	2.995342
02/14/1945	95.902174	2.07844486	0.58138682	155.986964	339.533405	11.796489	0.87006441	2.996459
02/22/1974	344.726910	2.07557853	0.58386310	156.274522	339.195793	11.851158	0.86372481	2.990263
03/02/2003	239.434280	2.07468202	0.58687905	156.621413	338.851368	11.911845	0.85709461	2.988326
03/09/2032	137.744120	2.07216693	0.59076044	157.238385	338.295850	11.996442	0.84801269	2.982893
03/17/2061	52.460786	2.06412216	0.59609945	157.996345	337.824633	12.135584	0.83370007	2.965539
03/25/2090	340.575689	2.06000667	0.59962786	158.640972	337.433780	12.237986	0.82476928	2.956675
04/03/2119	281.473444	2.05371917	0.60540239	159.372432	336.910582	12.378444	0.81039267	2.943149
04/10/2148	233.263192	2.05158429	0.60828071	159.773674	336.601327	12.449379	0.80364514	2.938561
04/18/2177	193.060522	2.04800699	0.61087369	160.058170	336.266626	12.515159	0.79693341	2.930878

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