Asteroid General Data

2018 PK₂₁

General information

Preliminary designation	2018 PK₂₁
Group	Aten
Absolute magnitude	25.83
Approximate diameter (m)	18
Approximate mass (kg)	1.09·10⁷
Number of observations	132
Arc length (days)	833

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	248.272481
a – orbit major semiaxis (astronomical units)	0.98323900
e – orbit eccentricity	0.08088500
ω – orbit ascending node-perihelion angle (degrees)	227.402538
Ω – longitude of orbit ascending node (degrees)	302.613833
i – orbit inclination to the ecliptic plane (degrees)	1.223163

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	245.294134	0.98489867	0.07885140	190.636056	349.051919	0.896817	0.90723803	0.977435
01/21/1858	134.030024	0.98498708	0.08002677	191.002622	345.032172	0.902970	0.90616175	0.977567
01/29/1887	6.555893	0.98676054	0.07965523	209.518831	324.882710	1.028599	0.90815990	0.980208
02/07/1916	221.934305	0.98688339	0.07969278	209.888332	324.640285	1.024598	0.90823591	0.980391
02/14/1945	102.561105	0.98311454	0.08012824	221.975931	311.433162	1.160279	0.90433930	0.974780
02/22/1974	8.226098	0.98659155	0.07998990	224.198350	307.262649	1.189550	0.90767419	0.979956
03/02/2003	229.790557	0.98653557	0.07996219	224.683474	306.968524	1.186552	0.90765003	0.979873
03/09/2032	109.985341	0.98335340	0.08082852	227.459692	302.558792	1.222863	0.90387041	0.975136
03/17/2061	28.449945	0.98409203	0.08201400	228.324571	295.704426	1.307121	0.90338270	0.976235
03/25/2090	294.695990	0.98371391	0.08203787	228.770075	295.412750	1.304881	0.90301211	0.975672
04/03/2119	164.379614	0.98556920	0.08031075	236.981871	286.874560	1.585178	0.90641739	0.978433
04/10/2148	45.441203	0.98733487	0.08135414	235.008074	283.980935	1.594140	0.90701110	0.981064
04/18/2177	288.170030	0.98509926	0.08139457	236.451779	283.462178	1.597142	0.90491753	0.977734

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