Asteroid General Data

2009 KR₂₁

General information

Preliminary designation	2009 KR₂₁
Group	Apollo
Absolute magnitude	26.77
Approximate diameter (m)	12
Approximate mass (kg)	2.98·10⁶
Number of observations	16
Arc length (days)	1

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	157.207034
a – orbit major semiaxis (astronomical units)	1.74759800
e – orbit eccentricity	0.52060000
ω – orbit ascending node-perihelion angle (degrees)	242.574147
Ω – longitude of orbit ascending node (degrees)	68.974430
i – orbit inclination to the ecliptic plane (degrees)	2.113089

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	166.941728	1.71077398	0.51336677	240.214667	71.799907	2.365677	0.83251946	2.237637
01/21/1858	155.934325	1.71075943	0.51337701	240.569578	71.549376	2.362104	0.83249488	2.237608
01/29/1887	146.351969	1.70971156	0.51316606	241.006852	71.282093	2.356326	0.83234562	2.235553
02/07/1916	133.413527	1.71367893	0.51418924	241.661454	70.565742	2.364917	0.83252366	2.243338
02/14/1945	111.420490	1.71351014	0.51442583	242.119927	70.307006	2.359291	0.83203626	2.243007
02/22/1974	85.250144	1.71451868	0.51434802	242.849364	69.641353	2.366460	0.83265939	2.244988
03/02/2003	58.384002	1.71446278	0.51497933	243.175493	69.381746	2.360100	0.83154988	2.244878
03/09/2032	290.708186	1.74680926	0.52065754	242.683796	68.903789	2.112254	0.83731985	2.308707
03/17/2061	137.365658	1.74644991	0.52068087	243.142389	68.541392	2.107810	0.83710686	2.307995
03/25/2090	348.425597	1.74534777	0.52058027	243.566554	68.119658	2.105852	0.83675416	2.305810
04/03/2119	202.004912	1.74532776	0.52028389	244.265170	67.626569	2.107216	0.83726184	2.305771
04/10/2148	51.783119	1.74475862	0.52057400	244.820820	67.194283	2.103335	0.83648264	2.304643
04/18/2177	260.929093	1.74615073	0.52075095	245.084422	66.939731	2.097996	0.83684108	2.307402

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