Asteroid General Data

2009 SD₁

General information

Preliminary designation	2009 SD₁
Group	Apollo
Absolute magnitude	22.33
Approximate diameter (m)	91
Approximate mass (kg)	1.37·10⁹
Number of observations	28
Arc length (days)	5

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	184.218476
a – orbit major semiaxis (astronomical units)	1.71409500
e – orbit eccentricity	0.50490400
ω – orbit ascending node-perihelion angle (degrees)	62.089621
Ω – longitude of orbit ascending node (degrees)	0.935515
i – orbit inclination to the ecliptic plane (degrees)	31.997223

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	156.055432	1.71393454	0.50011823	60.695519	2.670713	32.311948	0.85676464	2.243840
01/21/1858	133.025933	1.71381601	0.50092152	60.897689	2.413732	32.269546	0.85532869	2.243608
01/29/1887	109.497310	1.71429435	0.50150176	61.088294	2.174226	32.225637	0.85457272	2.244547
02/07/1916	83.569635	1.71452097	0.50228900	61.299923	1.897490	32.172793	0.85333594	2.244992
02/14/1945	59.241837	1.71405077	0.50275761	61.514713	1.661316	32.132294	0.85229870	2.244069
02/22/1974	34.861636	1.71437590	0.50353432	61.732482	1.380631	32.079946	0.85112881	2.244707
03/02/2003	9.120935	1.71547746	0.50455493	61.900063	1.137786	32.029753	0.84992486	2.246871
03/09/2032	342.583356	1.71404552	0.50499526	62.167342	0.857216	31.981921	0.84846066	2.244058
03/17/2061	318.073461	1.71405123	0.50580060	62.348304	0.623711	31.941613	0.84708309	2.244070
03/25/2090	293.016973	1.71427877	0.50667297	62.561285	0.353374	31.890365	0.84570005	2.244516
04/03/2119	267.012909	1.71381472	0.50718549	62.770287	0.100421	31.847727	0.84459276	2.243605
04/10/2148	244.680222	1.71321291	0.50785348	62.962031	359.857939	31.806532	0.84315177	2.242423
04/18/2177	221.998236	1.71367724	0.50840371	63.175255	359.575671	31.759395	0.84243737	2.243335

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