Asteroid General Data

1989 PB (4769 Castalia)

General information

Preliminary designation	1989 PB
Name	Castalia
Number	4769
Group	Apollo
Absolute magnitude	17.39
Approximate diameter (m)	880
Approximate mass (kg)	1.26·10¹²
Number of observations	632
Arc length (days)	13391

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	233.531205
a – orbit major semiaxis (astronomical units)	1.06311100
e – orbit eccentricity	0.48314300
ω – orbit ascending node-perihelion angle (degrees)	121.452413
Ω – longitude of orbit ascending node (degrees)	325.498442
i – orbit inclination to the ecliptic plane (degrees)	8.885243

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	149.510946	1.06377183	0.48298112	119.641207	327.320495	8.963711	0.54999012	1.097169
01/21/1858	312.530650	1.06334051	0.48308861	119.981066	327.032641	8.952590	0.54965282	1.096501
01/29/1887	120.522238	1.06357893	0.48305380	120.192103	326.804077	8.946121	0.54981308	1.096870
02/07/1916	289.591756	1.06369938	0.48303999	120.454789	326.513831	8.931947	0.54989004	1.097056
02/14/1945	95.165549	1.06386100	0.48302944	120.655566	326.255871	8.920499	0.54998482	1.097306
02/22/1974	256.408260	1.06366425	0.48305430	120.955293	325.963148	8.912153	0.54985666	1.097002
03/02/2003	61.831662	1.06332439	0.48324793	121.278559	325.700608	8.888049	0.54947509	1.096476
03/09/2032	231.762311	1.06318724	0.48326787	121.539424	325.425587	8.881786	0.54938301	1.096264
03/17/2061	38.497456	1.06377520	0.48337652	121.738920	325.164415	8.853175	0.54957125	1.097174
03/25/2090	200.781674	1.06404552	0.48332293	121.951687	324.892475	8.843550	0.54976793	1.097592
04/03/2119	1.710418	1.06387872	0.48329164	122.203041	324.627369	8.836354	0.54971503	1.097334
04/10/2148	156.298999	1.06433181	0.48336248	122.496262	324.344671	8.806932	0.54987375	1.098035
04/18/2177	310.548782	1.06430012	0.48332433	122.728112	324.072551	8.798223	0.54989798	1.097986

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