Asteroid General Data

2012 HN₄₀

General information

Preliminary designation	2012 HN₄₀
Group	Apollo
Absolute magnitude	20.38
Approximate diameter (m)	220
Approximate mass (kg)	2.03·10¹⁰
Number of observations	111
Arc length (days)	3309

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	63.823417
a – orbit major semiaxis (astronomical units)	2.70630100
e – orbit eccentricity	0.67114600
ω – orbit ascending node-perihelion angle (degrees)	246.694594
Ω – longitude of orbit ascending node (degrees)	60.560327
i – orbit inclination to the ecliptic plane (degrees)	14.380510

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	224.182479	2.67583269	0.67067422	227.397975	78.999248	17.697481	0.88122068	4.377126
01/21/1858	73.914258	2.69266320	0.66496550	229.018632	77.543223	17.296268	0.90213507	4.418488
01/29/1887	277.199366	2.70057912	0.66465076	231.819410	74.950455	16.660828	0.90563716	4.437986
02/07/1916	110.705620	2.70138771	0.66782222	235.003774	71.942573	16.047925	0.89734098	4.439980
02/14/1945	300.699703	2.70449658	0.66880755	238.475762	68.551343	15.441120	0.89570884	4.447647
02/22/1974	131.035372	2.70058815	0.66930534	238.907116	68.101701	15.393133	0.89307009	4.438009
03/02/2003	319.316036	2.70197714	0.67016278	242.770919	64.329863	14.848988	0.89121262	4.441433
03/09/2032	146.147456	2.71077766	0.66983331	246.802139	60.399633	14.356934	0.89500849	4.463150
03/17/2061	330.192041	2.70985949	0.67127910	251.125240	56.202874	13.953670	0.89078745	4.460882
03/25/2090	150.301137	2.71590021	0.66944211	255.471377	51.963134	13.613043	0.89776225	4.475807
04/03/2119	326.315319	2.71217505	0.67075090	256.092640	51.294484	13.591174	0.89298118	4.466601
04/10/2148	127.418567	2.71668550	0.66995226	260.003862	47.508352	13.382506	0.89663591	4.477748
04/18/2177	288.606919	2.73101733	0.66501986	261.427124	46.159964	13.302695	0.91483658	4.513228

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