Asteroid General Data

2021 SJ₂

General information

Preliminary designation	2021 SJ₂
Group	Apollo
Absolute magnitude	25.63
Approximate diameter (m)	20
Approximate mass (kg)	1.44·10⁷
Number of observations	15
Arc length (days)	12

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	6.875789
a – orbit major semiaxis (astronomical units)	1.85297900
e – orbit eccentricity	0.49096300
ω – orbit ascending node-perihelion angle (degrees)	108.887581
Ω – longitude of orbit ascending node (degrees)	202.956261
i – orbit inclination to the ecliptic plane (degrees)	3.265935

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	336.558997	1.85736445	0.49096770	102.114710	208.587222	3.166320	0.94545849	2.531316
01/21/1858	143.964802	1.85630562	0.49141161	102.757983	208.062750	3.172686	0.94409549	2.529151
01/29/1887	310.346222	1.85778773	0.49144112	103.719311	207.241310	3.182217	0.94479446	2.532181
02/07/1916	116.157938	1.85820272	0.49139663	104.909760	206.275478	3.197692	0.94508816	2.533030
02/14/1945	281.088500	1.85808671	0.49113934	106.237535	205.182506	3.225183	0.94550724	2.532792
02/22/1974	86.343131	1.85691556	0.49175416	106.925614	204.643046	3.233388	0.94376961	2.530398
03/02/2003	254.237167	1.85715909	0.49187985	107.867953	203.837502	3.243723	0.94365995	2.530896
03/09/2032	63.847943	1.85704216	0.49143278	108.953589	202.880505	3.270827	0.94443076	2.530657
03/17/2061	232.262089	1.85641225	0.49199940	109.918418	202.064095	3.279458	0.94305854	2.529369
03/25/2090	37.009465	1.85844907	0.49176278	110.715824	201.446090	3.294807	0.94453299	2.533533
04/03/2119	199.850992	1.85873281	0.49227374	111.592573	200.687120	3.301646	0.94372746	2.534113
04/10/2148	1.107723	1.85924207	0.49210457	112.528342	199.919642	3.316804	0.94430056	2.535155
04/18/2177	163.180408	1.85713532	0.49155281	113.381310	199.200061	3.340728	0.94425523	2.530847

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