Asteroid General Data

2015 LL₂₁

General information

Preliminary designation	2015 LL₂₁
Group	Apollo
Absolute magnitude	19.90
Approximate diameter (m)	280
Approximate mass (kg)	3.94·10¹⁰
Number of observations	63
Arc length (days)	31

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	194.950555
a – orbit major semiaxis (astronomical units)	2.18830200
e – orbit eccentricity	0.71594100
ω – orbit ascending node-perihelion angle (degrees)	56.600785
Ω – longitude of orbit ascending node (degrees)	111.221954
i – orbit inclination to the ecliptic plane (degrees)	6.970049

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	66.168382	2.17440116	0.71929228	45.053535	121.313123	7.835756	0.61037119	3.206344
01/21/1858	74.872537	2.17287277	0.72117720	46.449565	120.109609	7.719977	0.60584647	3.202964
01/29/1887	87.378389	2.17990176	0.71815134	47.345945	119.283807	7.641972	0.61440239	3.218518
02/07/1916	96.396746	2.18018147	0.71783052	49.174868	117.734814	7.493317	0.61518068	3.219138
02/14/1945	99.714178	2.18226090	0.71733430	51.304723	115.890970	7.326567	0.61685031	3.223745
02/22/1974	99.496083	2.18354366	0.71814001	51.792676	115.437495	7.290848	0.61545359	3.226587
03/02/2003	93.487073	2.18502553	0.71766222	54.128948	113.367658	7.129257	0.61691525	3.229873
03/09/2032	83.920480	2.18826140	0.71579618	56.662596	111.165389	6.967815	0.62191224	3.237050
03/17/2061	76.952732	2.18677807	0.71588853	59.331912	108.813297	6.819430	0.62128873	3.233759
03/25/2090	73.351867	2.18042447	0.71906987	61.804350	106.677410	6.701215	0.61254693	3.219676
04/03/2119	71.424455	2.17794060	0.72072555	64.258061	104.486573	6.592087	0.60824316	3.214176
04/10/2148	74.605018	2.18407299	0.71946723	64.967826	103.763531	6.559700	0.61270404	3.227761
04/18/2177	78.059879	2.18167159	0.72037402	67.437433	101.578239	6.467832	0.61005206	3.222439

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