Asteroid General Data

2012 OP₄ (857494)

General information

Preliminary designation	2012 OP₄
Number	857494
Group	Apollo
Absolute magnitude	20.06
Approximate diameter (m)	260
Approximate mass (kg)	3.16·10¹⁰
Number of observations	365
Arc length (days)	3503

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	189.303261
a – orbit major semiaxis (astronomical units)	2.11757600
e – orbit eccentricity	0.65820400
ω – orbit ascending node-perihelion angle (degrees)	262.868445
Ω – longitude of orbit ascending node (degrees)	143.546537
i – orbit inclination to the ecliptic plane (degrees)	20.651554

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	69.952005	2.11191219	0.65472748	257.250641	149.295904	20.927644	0.72918524	3.069124
01/21/1858	232.576546	2.11205622	0.65626949	257.832169	148.636474	20.882653	0.72597815	3.069438
01/29/1887	38.218827	2.11010235	0.65693722	258.936831	147.620540	20.821577	0.72389758	3.065179
02/07/1916	202.901990	2.11232427	0.65492602	259.832484	146.671368	20.781868	0.72890814	3.070022
02/14/1945	6.285512	2.11281683	0.65632075	260.284340	146.136351	20.754461	0.72613129	3.071096
02/22/1974	167.742139	2.11396182	0.65769145	261.804856	144.733482	20.689556	0.72362721	3.073593
03/02/2003	319.984135	2.11901417	0.65652018	262.448574	144.037255	20.669356	0.72783861	3.084618
03/09/2032	108.741408	2.11639872	0.65924588	263.295295	143.157942	20.634901	0.72117158	3.078909
03/17/2061	260.124881	2.11783067	0.65843196	264.450489	142.073768	20.604708	0.72338327	3.082034
03/25/2090	49.668820	2.11722284	0.65836962	264.994729	141.414148	20.593850	0.72330764	3.080708
04/03/2119	201.181691	2.11630030	0.66003809	265.933323	140.491078	20.564743	0.71946149	3.078694
04/10/2148	355.096922	2.11574412	0.65876783	266.988219	139.467684	20.559060	0.72195995	3.077481
04/18/2177	146.919677	2.11755674	0.65856273	267.535565	138.806004	20.547956	0.72301280	3.081436

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