Asteroid General Data

2009 SD₂₂₉ (445267)

General information

Preliminary designation	2009 SD₂₂₉
Number	445267
Group	Amor
Absolute magnitude	19.57
Approximate diameter (m)	320
Approximate mass (kg)	6.22·10¹⁰
Number of observations	384
Arc length (days)	5481

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	247.149169
a – orbit major semiaxis (astronomical units)	2.09882600
e – orbit eccentricity	0.41056500
ω – orbit ascending node-perihelion angle (degrees)	181.363193
Ω – longitude of orbit ascending node (degrees)	124.035875
i – orbit inclination to the ecliptic plane (degrees)	8.128304

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	261.536406	2.09955210	0.40872985	178.571904	125.458611	8.072257	1.24140248	3.042220
01/21/1858	93.672498	2.10086939	0.40715666	178.854642	125.258596	8.064909	1.24548643	3.045083
01/29/1887	286.776725	2.09963522	0.40847126	179.045040	125.018952	8.079014	1.24199456	3.042401
02/07/1916	121.488496	2.09808084	0.41043302	179.586644	124.821627	8.101947	1.23695918	3.039023
02/14/1945	315.716376	2.09989902	0.40867389	180.356138	124.645649	8.099912	1.24172511	3.042974
02/22/1974	148.390482	2.10084977	0.40745123	180.601537	124.461181	8.093517	1.24485595	3.045041
03/02/2003	340.667770	2.09925973	0.40940955	180.872502	124.212814	8.110318	1.23980275	3.041584
03/09/2032	175.605769	2.09890809	0.41077905	181.370104	124.003141	8.128617	1.23672062	3.040820
03/17/2061	10.460318	2.09908595	0.41019049	181.910104	123.848993	8.130033	1.23806086	3.041207
03/25/2090	202.730952	2.10006370	0.40773151	182.355762	123.638894	8.115785	1.24380157	3.043332
04/03/2119	35.189882	2.10032353	0.40797004	182.559675	123.434438	8.119569	1.24345445	3.043897
04/10/2148	229.522846	2.09830217	0.41123061	183.120016	123.219580	8.148593	1.23541609	3.039504
04/18/2177	64.673766	2.09908823	0.41071257	183.774497	123.040896	8.147875	1.23696630	3.041212

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