Asteroid General Data

2011 SR₁₂

General information

Preliminary designation	2011 SR₁₂
Group	Apollo
Absolute magnitude	19.56
Approximate diameter (m)	330
Approximate mass (kg)	6.31·10¹⁰
Number of observations	52
Arc length (days)	1950

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	114.471067
a – orbit major semiaxis (astronomical units)	2.02208800
e – orbit eccentricity	0.80180700
ω – orbit ascending node-perihelion angle (degrees)	23.840570
Ω – longitude of orbit ascending node (degrees)	203.054036
i – orbit inclination to the ecliptic plane (degrees)	11.911467

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	118.652385	2.01363286	0.80453089	19.114364	206.608486	13.086032	0.39360302	2.857400
01/21/1858	166.676726	2.02282046	0.80090057	19.718721	206.187648	12.880416	0.40274240	2.876979
01/29/1887	201.872587	2.01637280	0.80375143	20.751528	205.434802	12.664004	0.39571028	2.863234
02/07/1916	257.472724	2.01274754	0.80566093	20.896351	205.304302	12.662882	0.39115548	2.855516
02/14/1945	303.359310	2.02175363	0.80088711	21.840332	204.572983	12.354332	0.40255722	2.874703
02/22/1974	340.567786	2.01720598	0.80425490	22.730828	203.959912	12.200030	0.39485818	2.865009
03/02/2003	36.867702	2.01484955	0.80565237	22.982335	203.732704	12.163201	0.39158123	2.859990
03/09/2032	79.999079	2.02180575	0.80206254	23.886144	203.037216	11.914458	0.40019110	2.874814
03/17/2061	117.408941	2.01411827	0.80706456	24.961964	202.266840	11.742472	0.38859480	2.858433
03/25/2090	173.155701	2.01460075	0.80722568	25.178299	202.065491	11.699662	0.38836328	2.859460
04/03/2119	213.221899	2.02471885	0.80372271	26.448997	201.070547	11.359102	0.39740633	2.881029
04/10/2148	251.627329	2.01532357	0.80815373	27.352159	200.351128	11.233133	0.38663231	2.861000
04/18/2177	306.523886	2.01405536	0.80861466	27.597292	200.120555	11.195953	0.38546067	2.858299

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