Asteroid General Data

2011 UN₉₁

General information

Preliminary designation	2011 UN₉₁
Group	Apollo
Absolute magnitude	25.65
Approximate diameter (m)	20
Approximate mass (kg)	1.40·10⁷
Number of observations	22
Arc length (days)	4

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	57.276421
a – orbit major semiaxis (astronomical units)	2.33043100
e – orbit eccentricity	0.64559100
ω – orbit ascending node-perihelion angle (degrees)	72.839459
Ω – longitude of orbit ascending node (degrees)	19.463604
i – orbit inclination to the ecliptic plane (degrees)	6.057948

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	308.471388	2.34056192	0.64985318	58.506322	32.023675	6.680006	0.81954030	3.580806
01/21/1858	339.972248	2.33834798	0.64785333	61.373907	29.623421	6.521136	0.82344145	3.575727
01/29/1887	15.062428	2.34512905	0.64229592	63.147409	28.035630	6.409471	0.83886222	3.591292
02/07/1916	53.461858	2.34570359	0.64236471	64.925331	26.396717	6.331181	0.83890638	3.592612
02/14/1945	93.809150	2.33433802	0.64699881	66.680763	24.933831	6.263727	0.82402411	3.566533
02/22/1974	139.804748	2.32973555	0.64773794	69.355207	22.617544	6.172664	0.82067745	3.555990
03/02/2003	191.935863	2.32997712	0.64744893	72.037200	20.285768	6.093272	0.82143592	3.556543
03/09/2032	250.105066	2.32939095	0.64797672	74.564031	17.979689	6.006121	0.81999985	3.555201
03/17/2061	316.351057	2.32829390	0.64626420	75.724714	16.901756	5.988435	0.82360091	3.552690
03/25/2090	25.316018	2.32196471	0.64994715	77.628233	15.205115	5.948007	0.81281037	3.538214
04/03/2119	92.334387	2.32311577	0.65013374	79.944726	13.110037	5.905315	0.81277982	3.540845
04/10/2148	157.862636	2.32230528	0.64945310	82.395737	10.928166	5.870636	0.81407691	3.538992
04/18/2177	222.233806	2.32362076	0.64788911	85.040542	8.543513	5.842673	0.81817217	3.541999

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