Asteroid General Data

1999 YD

General information

Preliminary designation	1999 YD
Group	Apollo
Absolute magnitude	21.12
Approximate diameter (m)	160
Approximate mass (kg)	7.31·10⁹
Number of observations	97
Arc length (days)	71

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	334.226542
a – orbit major semiaxis (astronomical units)	2.46340800
e – orbit eccentricity	0.59322900
ω – orbit ascending node-perihelion angle (degrees)	61.889835
Ω – longitude of orbit ascending node (degrees)	9.333386
i – orbit inclination to the ecliptic plane (degrees)	1.375304

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	320.551943	2.54107658	0.53393589	45.823477	22.735942	1.652551	1.18430460	4.050674
01/21/1858	21.985127	2.53519036	0.53869219	45.932759	22.383158	1.641031	1.16950312	4.036607
01/29/1887	98.715601	2.52650025	0.54702919	47.272071	21.379265	1.609339	1.14443086	4.015870
02/07/1916	197.456455	2.50442617	0.56248370	51.743313	17.991052	1.527908	1.09572727	3.963355
02/14/1945	325.209266	2.48815330	0.57140150	55.842575	14.819110	1.465270	1.06641877	3.924789
02/22/1974	122.635209	2.46911677	0.58551054	59.828804	11.501842	1.406855	1.02342287	3.879833
03/02/2003	301.083893	2.46529322	0.59144679	61.681934	9.719861	1.382567	1.00720346	3.870825
03/09/2032	124.422555	2.46237441	0.59359047	61.879436	9.280679	1.374259	1.00073243	3.863952
03/17/2061	301.264919	2.47265406	0.58960748	62.263065	8.715564	1.363987	1.01475873	3.888174
03/25/2090	98.076326	2.48523288	0.58146300	63.290802	7.702691	1.347456	1.04016192	3.917881
04/03/2119	225.515777	2.50552671	0.56696334	66.265977	5.054539	1.316384	1.08498493	3.965968
04/10/2148	326.838514	2.51981162	0.55675329	67.983661	3.498606	1.296221	1.11689821	3.999933
04/18/2177	45.285928	2.53529753	0.54749514	68.706070	2.614709	1.283167	1.14723447	4.036863

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