AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 2008ER121 ∴ Orbital info ∴ Epoch epochXXX

(358815) 2008ER121 ▹

ORBITAL INFORMATION

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(ASCII data file 358815.eq1)

Keplerian elements at epoch
60400.0 MJD
	Value	1-σ variation	Units
a	3.08433	4.207e-08	au
e	0.099248	5.187e-08
i	16.009	8.421e-06	deg
Ω	358.213	2.139e-05	deg
ω	82.013	5.057e-05	deg
M	79.039	4.49e-05	deg

Other useful info
Absolute Magnitude (H)	16.4	mag
Slope parameter (G)	0.15	mag
Perihelion	2.7782	au
Aphelion	3.3904	au
Asc. node-Earth separation	2.009	au
Desc. node-Earth separation	2.10127	au
Earth MOID	1.84946	au
Orbital period	1978.51	days
Date of orbit computation	apr 23 21:05

Correlation matrix
1.00000000	-0.11792572	0.00410698	-0.00416844	-0.04575589	-0.13956778
-0.11792572	1.00000000	-0.00488420	-0.00162559	-0.08666151	0.11905418
0.00410698	-0.00488420	1.00000000	-0.02817881	-0.01197033	0.02535356
-0.00416844	-0.00162559	-0.02817881	1.00000000	-0.40416738	0.00119344
-0.04575589	-0.08666151	-0.01197033	-0.40416738	1.00000000	-0.89334238
-0.13956778	0.11905418	0.02535356	0.00119344	-0.89334238	1.00000000

Covariance matrix
1.76961750E-15	-2.57309028E-16	1.45485177E-15	-3.75090725E-15	-9.73370729E-14	-2.63613819E-13
-2.57309028E-16	2.69037955E-15	-2.13332024E-15	-1.80360203E-15	-2.27313156E-13	2.77264796E-13
1.45485177E-15	-2.13332024E-15	7.09107161E-11	-5.07577182E-12	-5.09745934E-12	9.58601805E-12
-3.75090725E-15	-1.80360203E-15	-5.07577182E-12	4.57558811E-10	-4.37196077E-10	1.14621658E-12
-9.73370729E-14	-2.27313156E-13	-5.09745934E-12	-4.37196077E-10	2.55730826E-09	-2.02839619E-09
-2.63613819E-13	2.77264796E-13	9.58601805E-12	1.14621658E-12	-2.02839619E-09	2.01598186E-09