Asteroid General Data

2021 YJ

General information

Preliminary designation	2021 YJ
Group	Apollo
Absolute magnitude	19.92
Approximate diameter (m)	280
Approximate mass (kg)	3.84·10¹⁰
Number of observations	223
Arc length (days)	97

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	125.923965
a – orbit major semiaxis (astronomical units)	2.30337700
e – orbit eccentricity	0.56169500
ω – orbit ascending node-perihelion angle (degrees)	176.484178
Ω – longitude of orbit ascending node (degrees)	274.254381
i – orbit inclination to the ecliptic plane (degrees)	32.365364

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	36.035252	2.31010776	0.56974710	172.790810	275.734736	32.263892	0.99393057	3.511147
01/21/1858	127.673770	2.31256514	0.56771702	173.303790	275.495992	32.255640	0.99968256	3.516751
01/29/1887	220.746305	2.30870742	0.56786925	173.907185	275.288134	32.345523	0.99766348	3.507955
02/07/1916	314.937001	2.31011019	0.56775613	174.377090	275.067314	32.387291	0.99853097	3.511152
02/14/1945	45.888480	2.31101010	0.56683587	174.977192	274.849202	32.399779	1.00104668	3.513204
02/22/1974	136.574332	2.30983825	0.56647628	175.547761	274.626712	32.445430	1.00136968	3.510532
03/02/2003	228.277651	2.30977436	0.56603580	176.070183	274.425411	32.475389	1.00235938	3.510387
03/09/2032	324.624374	2.30839155	0.56471440	176.623605	274.184883	32.474829	1.00480960	3.507235
03/17/2061	59.852954	2.30907680	0.56444262	177.163240	273.984345	32.486572	1.00573545	3.508796
03/25/2090	154.936950	2.31328638	0.56268086	177.501428	273.762183	32.467261	1.01164440	3.518396
04/03/2119	250.732132	2.31136223	0.56250729	178.134709	273.562165	32.448777	1.01120412	3.514007
04/10/2148	345.863437	2.31166698	0.56202117	178.322921	273.416356	32.442832	1.01246119	3.514702
04/18/2177	84.239632	2.31051337	0.56098948	179.064417	273.150567	32.429168	1.01433968	3.512071

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