Asteroid General Data

1989 FB (4544 Xanthus)

General information

Preliminary designation	1989 FB
Name	Xanthus
Number	4544
Group	Apollo
Absolute magnitude	17.39
Approximate diameter (m)	880
Approximate mass (kg)	1.26·10¹²
Number of observations	2919
Arc length (days)	13493

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	283.105001
a – orbit major semiaxis (astronomical units)	1.04205000
e – orbit eccentricity	0.25021200
ω – orbit ascending node-perihelion angle (degrees)	333.844833
Ω – longitude of orbit ascending node (degrees)	23.930729
i – orbit inclination to the ecliptic plane (degrees)	14.143150

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	343.887076	1.04207695	0.25024093	332.509783	25.140120	14.176700	0.78130664	1.063776
01/21/1858	86.375493	1.04179917	0.25003654	332.691486	24.957043	14.172120	0.78131131	1.063351
01/29/1887	187.198715	1.04228490	0.25037432	332.886719	24.809229	14.168704	0.78132353	1.064095
02/07/1916	289.950824	1.04209369	0.25027229	333.139159	24.610242	14.163811	0.78128652	1.063802
02/14/1945	30.062634	1.04204271	0.25031344	333.271378	24.430509	14.156367	0.78120541	1.063724
02/22/1974	132.966276	1.04200072	0.25019807	333.475741	24.250605	14.152283	0.78129415	1.063660
03/02/2003	233.082308	1.04214278	0.25031360	333.643298	24.101196	14.146889	0.78128027	1.063877
03/09/2032	335.800428	1.04222317	0.25031453	333.898393	23.908983	14.142660	0.78133957	1.064000
03/17/2061	76.909735	1.04184507	0.25001948	334.068084	23.723666	14.135400	0.78136350	1.063421
03/25/2090	179.281495	1.04203766	0.25027799	334.296141	23.556548	14.133075	0.78123858	1.063716
04/03/2119	280.956125	1.04182655	0.24999212	334.524099	23.378843	14.128130	0.78137812	1.063393
04/10/2148	22.846096	1.04209568	0.25033020	334.704937	23.200970	14.123572	0.78122766	1.063805
04/18/2177	125.295993	1.04183315	0.25006885	334.882184	23.009505	14.116486	0.78130313	1.063403

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