AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1998SA7 ∴ Orbital info ∴ Epoch epochXXX

(20417) 1998SA7 ▹

ORBITAL INFORMATION

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(ASCII data file 20417.eq1)

Keplerian elements at epoch
60400.0 MJD
	Value	1-σ variation	Units
a	2.70778	1.141e-08	au
e	0.190894	3.853e-08
i	7.17	4.961e-06	deg
Ω	346.067	2.645e-05	deg
ω	228.988	2.907e-05	deg
M	25.716	1.305e-05	deg

Other useful info
Absolute Magnitude (H)	14.2	mag
Slope parameter (G)	0.15	mag
Perihelion	2.1909	au
Aphelion	3.2247	au
Asc. node-Earth separation	1.97598	au
Desc. node-Earth separation	1.32659	au
Earth MOID	1.193	au
Orbital period	1627.49	days
Date of orbit computation	apr 23 19:50

Correlation matrix
1.00000000	0.09654605	-0.00939898	0.00279046	0.02032301	-0.33501908
0.09654605	1.00000000	-0.00389155	0.00162059	-0.19115001	0.40014992
-0.00939898	-0.00389155	1.00000000	0.06634029	-0.05702103	-0.00564583
0.00279046	0.00162059	0.06634029	1.00000000	-0.90558994	0.01309314
0.02032301	-0.19115001	-0.05702103	-0.90558994	1.00000000	-0.40738746
-0.33501908	0.40014992	-0.00564583	0.01309314	-0.40738746	1.00000000

Covariance matrix
1.30254467E-16	4.24595544E-17	-5.32128840E-16	8.42490749E-16	6.74300714E-15	-4.98881204E-14
4.24595544E-17	1.48487263E-15	-7.43887418E-16	1.65200236E-15	-2.14135248E-13	2.01186402E-13
-5.32128840E-16	-7.43887418E-16	2.46081556E-11	8.70583903E-12	-8.22325568E-12	-3.65425350E-13
8.42490749E-16	1.65200236E-15	8.70583903E-12	6.99821826E-10	-6.96457400E-10	4.51927421E-12
6.74300714E-15	-2.14135248E-13	-8.22325568E-12	-6.96457400E-10	8.45159067E-10	-1.54528353E-10
-4.98881204E-14	2.01186402E-13	-3.65425350E-13	4.51927421E-12	-1.54528353E-10	1.70240382E-10