Asteroid General Data

2012 TO₁₃₉

General information

Preliminary designation	2012 TO₁₃₉
Group	Apollo
Absolute magnitude	19.84
Approximate diameter (m)	290
Approximate mass (kg)	4.28·10¹⁰
Number of observations	108
Arc length (days)	6967

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	257.048936
a – orbit major semiaxis (astronomical units)	2.44147700
e – orbit eccentricity	0.88777700
ω – orbit ascending node-perihelion angle (degrees)	56.579910
Ω – longitude of orbit ascending node (degrees)	178.969554
i – orbit inclination to the ecliptic plane (degrees)	5.343793

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	346.745977	2.46299517	0.87945629	26.580088	206.411481	8.673726	0.29689858	3.865413
01/21/1858	113.639524	2.52933322	0.86631600	31.679784	202.088747	7.384614	0.33813139	4.022626
01/29/1887	157.898196	2.56382968	0.85516857	34.486665	199.627269	6.842124	0.37132313	4.105200
02/07/1916	182.568955	2.56252901	0.85477490	34.791434	199.389099	6.803204	0.37214353	4.102077
02/14/1945	228.849042	2.52344389	0.86526256	37.933521	196.667667	6.560692	0.34000237	4.008585
02/22/1974	351.403965	2.47565993	0.87910744	50.588048	184.505630	5.607365	0.29928886	3.895266
03/02/2003	191.868962	2.43953189	0.88825485	55.922091	179.537339	5.383163	0.27260587	3.810310
03/09/2032	53.404233	2.44332709	0.88804455	56.704588	178.877277	5.339179	0.27354379	3.819206
03/17/2061	243.532412	2.48637612	0.87722005	65.690271	170.393274	4.802381	0.30527714	3.920585
03/25/2090	350.060978	2.53541934	0.86493136	82.166498	154.397767	4.273557	0.34245565	4.037154
04/03/2119	31.472277	2.56023769	0.85850255	85.892612	150.941256	4.206900	0.36226711	4.096576
04/10/2148	59.931028	2.55966266	0.85914307	86.900977	150.046062	4.199917	0.36054622	4.095196
04/18/2177	113.308330	2.52962329	0.86687234	92.334253	144.885840	4.265532	0.33676284	4.023318

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