Asteroid General Data

1990 SA (152558)

General information

Preliminary designation	1990 SA
Number	152558
Group	Amor
Absolute magnitude	16.86
Approximate diameter (m)	1 100
Approximate mass (kg)	2.63·10¹²
Number of observations	557
Arc length (days)	12328

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	241.614808
a – orbit major semiaxis (astronomical units)	2.01406200
e – orbit eccentricity	0.44099600
ω – orbit ascending node-perihelion angle (degrees)	115.188155
Ω – longitude of orbit ascending node (degrees)	172.094870
i – orbit inclination to the ecliptic plane (degrees)	38.159322

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	172.478407	2.01333491	0.44823837	114.445234	173.796769	37.864192	1.11088094	2.856766
01/21/1858	229.712096	2.01314499	0.44736997	114.474307	173.590506	37.894971	1.11252437	2.856362
01/29/1887	286.401227	2.01340044	0.44593560	114.678749	173.294698	37.966243	1.11555352	2.856905
02/07/1916	343.553537	2.01331263	0.44529129	114.816069	173.049253	37.992375	1.11680206	2.856718
02/14/1945	40.714890	2.01351399	0.44375451	114.881317	172.805731	38.044369	1.12000807	2.857147
02/22/1974	97.809640	2.01293710	0.44333834	115.040295	172.543872	38.092958	1.12052491	2.855919
03/02/2003	154.974707	2.01329205	0.44283751	115.075077	172.310754	38.107111	1.12173082	2.856675
03/09/2032	211.503467	2.01367760	0.44115012	115.217297	172.060449	38.167820	1.12534348	2.857495
03/17/2061	268.459179	2.01308014	0.44080293	115.405078	171.763242	38.214677	1.12570852	2.856224
03/25/2090	325.792374	2.01337779	0.43956074	115.377837	171.577544	38.243509	1.12837597	2.856857
04/03/2119	22.772568	2.01340546	0.43791509	115.524374	171.345337	38.297167	1.13170483	2.856916
04/10/2148	80.454805	2.01333809	0.43746515	115.650318	171.060874	38.333155	1.13257285	2.856773
04/18/2177	138.188272	2.01274309	0.43646409	115.706201	170.853671	38.374056	1.13425301	2.855506

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