Asteroid General Data

2021 UK₉

General information

Preliminary designation	2021 UK₉
Group	Amor
Absolute magnitude	20.97
Approximate diameter (m)	170
Approximate mass (kg)	8.99·10⁹
Number of observations	99
Arc length (days)	2366

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	206.904316
a – orbit major semiaxis (astronomical units)	2.03824500
e – orbit eccentricity	0.41595200
ω – orbit ascending node-perihelion angle (degrees)	149.082530
Ω – longitude of orbit ascending node (degrees)	315.663439
i – orbit inclination to the ecliptic plane (degrees)	5.360018

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	206.740296	2.03524783	0.42125792	145.296468	317.908359	5.313561	1.17788356	2.903532
01/21/1858	201.520984	2.03713721	0.41827093	145.636323	317.658640	5.306130	1.18506193	2.907576
01/29/1887	192.754718	2.03748361	0.41671811	146.261614	317.380478	5.313180	1.18842729	2.908317
02/07/1916	184.017786	2.03600481	0.41782305	147.327047	316.917247	5.343356	1.18531508	2.905152
02/14/1945	179.920601	2.03546647	0.41939824	147.838035	316.532206	5.358397	1.18179541	2.904000
02/22/1974	177.940882	2.03521014	0.42013165	148.159223	316.155297	5.364736	1.18015394	2.903451
03/02/2003	173.191834	2.03712018	0.41763263	148.519273	315.893725	5.356040	1.18635232	2.907539
03/09/2032	164.336831	2.03922943	0.41549189	149.221872	315.580552	5.361697	1.19194614	2.912056
03/17/2061	155.276798	2.03727260	0.41689194	150.127236	315.191314	5.387077	1.18795007	2.907866
03/25/2090	150.039060	2.03632697	0.41888685	150.755825	314.757636	5.406174	1.18333638	2.905841
04/03/2119	147.139273	2.03660377	0.41896478	150.985273	314.432021	5.406954	1.18333852	2.906434
04/10/2148	141.339537	2.03703678	0.41734729	151.307649	314.175530	5.401867	1.18688499	2.907361
04/18/2177	130.621606	2.03834439	0.41479921	152.105918	313.900988	5.406526	1.19284075	2.910161

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