Asteroid General Data

1999 BY₉ (85867)

General information

Preliminary designation	1999 BY₉
Number	85867
Group	Amor
Absolute magnitude	18.32
Approximate diameter (m)	580
Approximate mass (kg)	3.50·10¹¹
Number of observations	785
Arc length (days)	11097

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	22.603709
a – orbit major semiaxis (astronomical units)	1.82993300
e – orbit eccentricity	0.30204600
ω – orbit ascending node-perihelion angle (degrees)	287.817687
Ω – longitude of orbit ascending node (degrees)	254.111013
i – orbit inclination to the ecliptic plane (degrees)	0.945344

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	86.913141	1.83052740	0.30202873	281.341104	259.237636	0.934198	1.27765552	2.476652
01/21/1858	344.237251	1.83079715	0.30216181	282.617906	258.321171	0.936949	1.27760017	2.477199
01/29/1887	243.611471	1.83022758	0.30188386	283.196155	257.743482	0.931451	1.27771142	2.476043
02/07/1916	142.896657	1.83031103	0.30225688	284.167612	256.996643	0.933362	1.27708694	2.476213
02/14/1945	42.003499	1.83017533	0.30204517	285.038418	256.254038	0.936508	1.27737971	2.475937
02/22/1974	300.715585	1.83003902	0.30250043	286.011748	255.517379	0.939128	1.27645143	2.475661
03/02/2003	199.636922	1.83028168	0.30203330	286.906290	254.795266	0.942668	1.27747566	2.476153
03/09/2032	98.775051	1.83006596	0.30207451	287.967883	254.023949	0.945273	1.27724968	2.475715
03/17/2061	357.991050	1.83052911	0.30190762	288.794057	253.324979	0.947090	1.27787841	2.476655
03/25/2090	256.417991	1.83044436	0.30189362	289.842063	252.542282	0.949324	1.27784489	2.476483
04/03/2119	154.355764	1.83015734	0.30245184	290.730084	251.831055	0.952891	1.27662289	2.475901
04/10/2148	52.775302	1.83032654	0.30205205	291.669615	251.116746	0.956987	1.27747267	2.476244
04/18/2177	310.711353	1.83008220	0.30232075	292.616689	250.384976	0.959824	1.27681037	2.475748

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