Asteroid General Data

1989 RC (161999)

General information

Preliminary designation	1989 RC
Number	161999
Group	Amor
Absolute magnitude	18.80
Approximate diameter (m)	460
Approximate mass (kg)	1.80·10¹¹
Number of observations	155
Arc length (days)	12719

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	192.685578
a – orbit major semiaxis (astronomical units)	2.31598400
e – orbit eccentricity	0.51417000
ω – orbit ascending node-perihelion angle (degrees)	181.608478
Ω – longitude of orbit ascending node (degrees)	140.051417
i – orbit inclination to the ecliptic plane (degrees)	7.399757

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	141.516602	2.31553328	0.51180400	177.828021	141.835916	7.245841	1.13043409	3.523523
01/21/1858	229.673344	2.31384376	0.51366930	178.107400	141.613339	7.271739	1.12529327	3.519668
01/29/1887	316.013814	2.31563688	0.51235776	178.743672	141.326911	7.287379	1.12920234	3.523760
02/07/1916	44.342716	2.31232748	0.51511568	179.377984	141.065152	7.326948	1.12121133	3.516209
02/14/1945	131.299541	2.31229684	0.51558114	179.891797	140.818872	7.350433	1.12012020	3.516139
02/22/1974	217.489969	2.31363068	0.51511408	180.491003	140.557514	7.365756	1.12184693	3.519181
03/02/2003	305.426239	2.31158985	0.51552803	181.167911	140.283727	7.389485	1.11990050	3.514526
03/09/2032	32.944309	2.31282583	0.51540712	181.684876	140.037127	7.403894	1.12077893	3.517345
03/17/2061	120.558892	2.31615572	0.51322137	182.221447	139.767200	7.403841	1.12745511	3.524944
03/25/2090	210.488953	2.31279193	0.51389564	182.897019	139.528962	7.424320	1.12425825	3.517268
04/03/2119	299.633218	2.31558147	0.51248417	183.131065	139.320610	7.419151	1.12888263	3.523633
04/10/2148	28.467753	2.31521340	0.51263791	183.868060	139.036177	7.436179	1.12834725	3.522793
04/18/2177	119.436625	2.31037686	0.51418835	184.141441	138.816655	7.458253	1.12240799	3.511760

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