Asteroid General Data

2003 BC₂₁ (143381)

General information

Preliminary designation	2003 BC₂₁
Number	143381
Group	Amor
Absolute magnitude	16.21
Approximate diameter (m)	1 500
Approximate mass (kg)	6.46·10¹²
Number of observations	987
Arc length (days)	15742

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	277.170659
a – orbit major semiaxis (astronomical units)	2.59663400
e – orbit eccentricity	0.51042100
ω – orbit ascending node-perihelion angle (degrees)	114.099081
Ω – longitude of orbit ascending node (degrees)	292.102914
i – orbit inclination to the ecliptic plane (degrees)	5.474675

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	199.067634	2.59729735	0.51421146	101.470317	303.109324	5.220154	1.26173728	4.185845
01/21/1858	173.251013	2.60281682	0.50760045	102.519617	302.051616	5.254229	1.28162582	4.199195
01/29/1887	147.356493	2.59826311	0.51366122	104.067261	300.597151	5.247022	1.26363612	4.188180
02/07/1916	126.855491	2.60073215	0.50787363	108.091948	297.483398	5.342664	1.27988888	4.194151
02/14/1945	99.124119	2.60132335	0.50839474	108.299871	297.021892	5.338480	1.27882423	4.195581
02/22/1974	78.509769	2.59468130	0.51128964	113.086878	293.361535	5.452140	1.26804764	4.179522
03/02/2003	53.368103	2.60216358	0.50603504	113.563050	292.798935	5.462298	1.28537763	4.197614
03/09/2032	27.562973	2.59031099	0.51467551	116.073828	290.635392	5.525796	1.25714137	4.168967
03/17/2061	6.894627	2.59914438	0.50686602	118.700191	288.711182	5.610614	1.28172642	4.190311
03/25/2090	338.583500	2.59693026	0.50926333	119.103646	288.003216	5.621283	1.27440892	4.184957
04/03/2119	316.986683	2.59245432	0.51087653	123.091245	285.133699	5.765984	1.26803024	4.174143
04/10/2148	290.563024	2.60035049	0.50534881	123.470807	284.571424	5.778004	1.28626646	4.193228
04/18/2177	264.473077	2.58947079	0.51338566	125.608077	282.788655	5.861151	1.26007363	4.166939

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