Asteroid General Data

1978 CA (161989 Cacus)

General information

Preliminary designation	1978 CA
Name	Cacus
Number	161989
Group	Apollo
Absolute magnitude	17.31
Approximate diameter (m)	920
Approximate mass (kg)	1.41·10¹²
Number of observations	1742
Arc length (days)	16425

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	198.786375
a – orbit major semiaxis (astronomical units)	1.12271200
e – orbit eccentricity	0.21382800
ω – orbit ascending node-perihelion angle (degrees)	102.102446
Ω – longitude of orbit ascending node (degrees)	161.201164
i – orbit inclination to the ecliptic plane (degrees)	26.065647

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	198.605603	1.12248884	0.21447870	101.263210	162.001871	26.028022	0.88173889	1.189251
01/21/1858	342.675829	1.12252395	0.21460168	101.340494	161.893535	26.028309	0.88162842	1.189307
01/29/1887	117.626638	1.12398671	0.21471973	101.796958	161.768667	26.029134	0.88264458	1.191633
02/07/1916	246.090650	1.12400858	0.21483010	101.882033	161.659315	26.030195	0.88253770	1.191667
02/14/1945	16.590288	1.12383633	0.21416589	102.064602	161.530618	26.050168	0.88314892	1.191393
02/22/1974	145.974716	1.12386826	0.21428231	102.159589	161.415095	26.051164	0.88304317	1.191444
03/02/2003	276.536298	1.12322120	0.21395596	102.125582	161.294509	26.061584	0.88290134	1.190415
03/09/2032	55.772403	1.12271317	0.21388650	102.095203	161.178960	26.065070	0.88257998	1.189608
03/17/2061	197.863045	1.12271325	0.21391636	102.208018	161.063400	26.064079	0.88254651	1.189608
03/25/2090	334.789126	1.12320626	0.21410189	102.429881	160.952312	26.064122	0.88272568	1.190392
04/03/2119	104.613648	1.12391734	0.21430230	102.652980	160.837868	26.061405	0.88305927	1.191522
04/10/2148	235.595144	1.12280698	0.21376957	102.541352	160.712815	26.077564	0.88278502	1.189757
04/18/2177	17.252197	1.12268896	0.21367371	102.584692	160.602867	26.081334	0.88279984	1.189569

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