Asteroid General Data

2021 RY₄

General information

Preliminary designation	2021 RY₄
Group	Apollo
Absolute magnitude	28.40
Approximate diameter (m)	6
Approximate mass (kg)	3.13·10⁵
Number of observations	26
Arc length (days)	22

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	321.033659
a – orbit major semiaxis (astronomical units)	1.93389600
e – orbit eccentricity	0.50090100
ω – orbit ascending node-perihelion angle (degrees)	329.393287
Ω – longitude of orbit ascending node (degrees)	345.956087
i – orbit inclination to the ecliptic plane (degrees)	5.697011

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	98.299041	1.91307385	0.49576926	324.693634	348.603881	5.347167	0.96463064	2.646051
01/21/1858	96.488845	1.90889423	0.49502569	325.106392	348.231400	5.382757	0.96394254	2.637384
01/29/1887	94.236221	1.90976390	0.49451617	325.694919	347.885982	5.389724	0.96535477	2.639187
02/07/1916	92.866058	1.90922850	0.49467831	326.169902	347.516110	5.403090	0.96477458	2.638077
02/14/1945	73.493498	1.91836482	0.49730413	327.305157	346.919682	5.496053	0.96435406	2.657036
02/22/1974	46.286554	1.91739838	0.49699813	327.734979	346.622901	5.503386	0.96445497	2.655028
03/02/2003	20.167753	1.91701205	0.49748317	328.199759	346.301547	5.513683	0.96333081	2.654226
03/09/2032	334.442033	1.93378523	0.50024597	329.396256	345.932743	5.692298	0.96641696	2.689137
03/17/2061	259.026426	1.93235315	0.50035557	329.949111	345.535026	5.708538	0.96548948	2.686151
03/25/2090	183.795373	1.93358811	0.49996757	330.443033	345.235998	5.713495	0.96685676	2.688726
04/03/2119	112.583057	1.93187140	0.49986138	330.908756	344.880172	5.733545	0.96620350	2.685146
04/10/2148	43.109794	1.93112302	0.49901528	331.474420	344.503669	5.744091	0.96746312	2.683586
04/18/2177	328.170022	1.93380934	0.50010513	332.001578	344.203273	5.749446	0.96670137	2.689188

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