Asteroid General Data

2017 SA₂₁

General information

Preliminary designation	2017 SA₂₁
Group	Apollo
Absolute magnitude	28.27
Approximate diameter (m)	6
Approximate mass (kg)	3.75·10⁵
Number of observations	31
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	204.580284
a – orbit major semiaxis (astronomical units)	2.31108700
e – orbit eccentricity	0.58374400
ω – orbit ascending node-perihelion angle (degrees)	152.488411
Ω – longitude of orbit ascending node (degrees)	185.230912
i – orbit inclination to the ecliptic plane (degrees)	4.232572

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	338.908145	2.25676967	0.57439919	143.257531	191.265795	3.620643	0.96048301	3.390248
01/21/1858	182.621051	2.25508408	0.57445775	144.590519	190.276270	3.677242	0.95963355	3.386450
01/29/1887	15.456177	2.26818299	0.57653177	146.787568	188.920530	3.808343	0.96050344	3.415999
02/07/1916	193.990884	2.26909566	0.57585203	147.734940	188.247781	3.859493	0.96243232	3.418061
02/14/1945	345.147542	2.28098254	0.57844529	148.973231	187.459151	3.964764	0.96155894	3.444955
02/22/1974	133.991578	2.28165205	0.57882989	149.789707	186.815880	4.011791	0.96096365	3.446472
03/02/2003	284.274912	2.27961677	0.57981998	150.884922	185.949219	4.081538	0.95784942	3.441861
03/09/2032	46.101210	2.31120194	0.58408342	152.492656	185.198398	4.235133	0.96126722	3.513642
03/17/2061	136.134693	2.31065797	0.58461275	153.573121	184.457504	4.304552	0.95981785	3.512401
03/25/2090	226.796621	2.31027806	0.58470781	154.440462	183.841035	4.367003	0.95944044	3.511535
04/03/2119	318.472934	2.31243222	0.58197684	155.378474	183.261958	4.423413	0.96665022	3.516447
04/10/2148	69.595974	2.29098391	0.58139039	156.213950	182.241978	4.497254	0.95902788	3.467637
04/18/2177	200.299313	2.29318638	0.58012651	157.023637	181.743816	4.552074	0.96284818	3.472639

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