Asteroid General Data

1987 OA (9162 Kwiila)

General information

Preliminary designation	1987 OA
Name	Kwiila
Number	9162
Group	Apollo
Absolute magnitude	18.01
Approximate diameter (m)	660
Approximate mass (kg)	5.37·10¹¹
Number of observations	779
Arc length (days)	13862

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	94.093901
a – orbit major semiaxis (astronomical units)	1.49663600
e – orbit eccentricity	0.59550300
ω – orbit ascending node-perihelion angle (degrees)	235.841610
Ω – longitude of orbit ascending node (degrees)	179.968797
i – orbit inclination to the ecliptic plane (degrees)	9.010481

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	97.836916	1.49577405	0.59558738	233.119126	182.320465	9.031339	0.60490990	1.829362
01/21/1858	47.242539	1.49605476	0.59545393	233.551301	181.979024	9.018303	0.60522307	1.829877
01/29/1887	354.856654	1.49609764	0.59538889	233.853113	181.665833	9.055885	0.60533772	1.829955
02/07/1916	303.609565	1.49589820	0.59535847	234.310285	181.303620	9.041919	0.60530253	1.829590
02/14/1945	252.952469	1.49672459	0.59540142	234.699458	181.003025	9.028790	0.60557264	1.831106
02/22/1974	198.106561	1.49654395	0.59532983	235.145776	180.599175	9.025982	0.60560669	1.830774
03/02/2003	143.678095	1.49647961	0.59536924	235.485249	180.287757	9.017578	0.60552168	1.830656
03/09/2032	90.544358	1.49600673	0.59543126	235.960946	179.876005	9.012149	0.60523756	1.829789
03/17/2061	39.119987	1.49659164	0.59557552	236.329373	179.590958	8.999214	0.60525830	1.830862
03/25/2090	344.272388	1.49654258	0.59578587	236.752764	179.244985	8.989295	0.60492365	1.830772
04/03/2119	288.389622	1.49662651	0.59561120	237.118998	178.849428	8.989878	0.60521900	1.830926
04/10/2148	233.329017	1.49657205	0.59578499	237.508738	178.525398	8.981373	0.60493688	1.830826
04/18/2177	180.983706	1.49679742	0.59559775	237.970933	178.145773	8.967688	0.60530825	1.831240

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