AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1997EH9 ∴ Orbital info ∴ Epoch epochXXX

(90903) 1997EH9 ▹

ORBITAL INFORMATION

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(ASCII data file 90903.eq1)

Keplerian elements at epoch
60400.0 MJD
	Value	1-σ variation	Units
a	2.92957	1.977e-08	au
e	0.049069	3.841e-08
i	0.646	4.766e-06	deg
Ω	111.221	0.0007086	deg
ω	167.942	0.0007153	deg
M	47.423	9.949e-05	deg

Other useful info
Absolute Magnitude (H)	15.5	mag
Slope parameter (G)	0.15	mag
Perihelion	2.7858	au
Aphelion	3.0733	au
Asc. node-Earth separation	2.08717	au
Desc. node-Earth separation	1.77208	au
Earth MOID	1.76916	au
Orbital period	1831.49	days
Date of orbit computation	apr 23 20:06

Correlation matrix
1.00000000	0.01650635	-0.00689343	0.00280335	0.01387702	-0.18227875
0.01650635	1.00000000	0.00278938	0.00587062	0.01367226	-0.14306472
-0.00689343	0.00278938	1.00000000	0.39266707	-0.38932414	0.00377991
0.00280335	0.00587062	0.39266707	1.00000000	-0.99071418	0.00101825
0.01387702	0.01367226	-0.38932414	-0.99071418	1.00000000	-0.13661338
-0.18227875	-0.14306472	0.00377991	0.00101825	-0.13661338	1.00000000

Covariance matrix
3.90670924E-16	1.25319675E-17	-6.49435980E-16	3.92603471E-14	1.96187543E-13	-3.58438280E-13
1.25319675E-17	1.47545350E-15	5.10700200E-16	1.59778446E-13	3.75640782E-13	-5.46723964E-13
-6.49435980E-16	5.10700200E-16	2.27191116E-11	1.32614658E-09	-1.32732356E-09	1.79246172E-12
3.92603471E-14	1.59778446E-13	1.32614658E-09	5.02045123E-07	-5.02099226E-07	7.17792875E-11
1.96187543E-13	3.75640782E-13	-1.32732356E-09	-5.02099226E-07	5.11610670E-07	-9.72155703E-09
-3.58438280E-13	-5.46723964E-13	1.79246172E-12	7.17792875E-11	-9.72155703E-09	9.89795740E-09