Asteroid General Data

1975 YA (2102 Tantalus)

General information

Preliminary designation	1975 YA
Name	Tantalus
Number	2102
Group	Apollo
Absolute magnitude	15.99
Approximate diameter (m)	1 700
Approximate mass (kg)	8.75·10¹²
Number of observations	1821
Arc length (days)	18359

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	189.143599
a – orbit major semiaxis (astronomical units)	1.29005800
e – orbit eccentricity	0.29937000
ω – orbit ascending node-perihelion angle (degrees)	61.505159
Ω – longitude of orbit ascending node (degrees)	94.351167
i – orbit inclination to the ecliptic plane (degrees)	64.003351

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	223.889007	1.29011424	0.29475780	62.131534	94.690767	64.047746	0.90984301	1.465355
01/21/1858	153.985523	1.28995591	0.29538908	62.039505	94.640127	64.041824	0.90891703	1.465085
01/29/1887	84.319522	1.29006899	0.29606793	61.951964	94.590986	64.033879	0.90812094	1.465278
02/07/1916	13.510419	1.29009586	0.29678752	61.862032	94.539408	64.024970	0.90721151	1.465324
02/14/1945	303.907091	1.29001278	0.29747776	61.759410	94.491513	64.021331	0.90626267	1.465182
02/22/1974	233.760463	1.29019396	0.29820606	61.663461	94.441106	64.012224	0.90545031	1.465491
03/02/2003	163.992036	1.28998596	0.29882053	61.589304	94.391960	64.009715	0.90451167	1.465136
03/09/2032	94.517435	1.29010904	0.29942512	61.499815	94.342254	64.004626	0.90381799	1.465346
03/17/2061	24.100733	1.29007185	0.30020355	61.406989	94.290427	63.997069	0.90278770	1.465283
03/25/2090	314.521122	1.29006073	0.30082697	61.317036	94.239286	63.989981	0.90197568	1.465264
04/03/2119	243.982765	1.29020284	0.30167723	61.213203	94.189855	63.979886	0.90097802	1.465506
04/10/2148	173.952635	1.28998592	0.30226169	61.166391	94.138154	63.974346	0.90007260	1.465136
04/18/2177	104.396825	1.29008046	0.30300083	61.058623	94.087594	63.965145	0.89918501	1.465297

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