Asteroid General Data

1993 UB (16657)

General information

Preliminary designation	1993 UB
Number	16657
Group	Amor
Absolute magnitude	16.55
Approximate diameter (m)	1 300
Approximate mass (kg)	4.04·10¹²
Number of observations	992
Arc length (days)	11536

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	197.178616
a – orbit major semiaxis (astronomical units)	2.27701500
e – orbit eccentricity	0.46046600
ω – orbit ascending node-perihelion angle (degrees)	21.301199
Ω – longitude of orbit ascending node (degrees)	31.187588
i – orbit inclination to the ecliptic plane (degrees)	24.939875

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	6.094534	2.27590886	0.45673679	18.232973	32.982127	25.410145	1.23641755	3.433467
01/21/1858	166.984468	2.27682602	0.45689789	18.629968	32.730756	25.344678	1.23654900	3.435543
01/29/1887	327.445606	2.27614197	0.45795374	19.017843	32.484198	25.295316	1.23377424	3.433995
02/07/1916	128.247806	2.27725975	0.45795162	19.489016	32.192668	25.217086	1.23438495	3.436525
02/14/1945	289.545876	2.27643480	0.45909105	19.928307	31.967636	25.158845	1.23134396	3.434657
02/22/1974	89.729680	2.27792066	0.45860757	20.673177	31.614260	25.020959	1.23324899	3.438021
03/02/2003	250.152870	2.27785428	0.45923500	21.004539	31.387845	24.970448	1.23178387	3.437871
03/09/2032	50.260324	2.27620601	0.46190954	21.618732	31.113348	24.913503	1.22480473	3.434140
03/17/2061	211.784136	2.27669215	0.46257153	22.065701	30.873728	24.838677	1.22355918	3.435240
03/25/2090	12.755930	2.27589569	0.46417096	22.514651	30.592069	24.779841	1.21949101	3.433437
04/03/2119	173.583115	2.27675704	0.46449145	22.903998	30.326252	24.709522	1.21922285	3.435387
04/10/2148	334.288428	2.27579673	0.46574703	23.294884	30.060669	24.654083	1.21585117	3.433214
04/18/2177	135.256542	2.27714495	0.46590009	23.757963	29.750575	24.567636	1.21622291	3.436265

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