AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1981EJ20 ∴ Orbital info ∴ Epoch epochXXX

(16380) 1981EJ20 ▹

ORBITAL INFORMATION

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(ASCII data file 16380.eq1)

Keplerian elements at epoch
60400.0 MJD
	Value	1-σ variation	Units
a	2.66593	1.13e-08	au
e	0.09338	3.524e-08
i	8.954	5.89e-06	deg
Ω	358.996	2.318e-05	deg
ω	103.229	4.174e-05	deg
M	21.523	3.283e-05	deg

Other useful info
Absolute Magnitude (H)	14.9	mag
Slope parameter (G)	0.15	mag
Perihelion	2.417	au
Aphelion	2.9149	au
Asc. node-Earth separation	1.69722	au
Desc. node-Earth separation	1.59178	au
Earth MOID	1.45307	au
Orbital period	1589.91	days
Date of orbit computation	apr 23 19:49

Correlation matrix
1.00000000	-0.08997630	0.00835245	-0.00641051	-0.05718708	-0.04786573
-0.08997630	1.00000000	-0.00725557	-0.01036563	0.26322417	-0.30864035
0.00835245	-0.00725557	1.00000000	-0.15680863	0.07359776	0.01454073
-0.00641051	-0.01036563	-0.15680863	1.00000000	-0.55381340	0.00906076
-0.05718708	0.26322417	0.07359776	-0.55381340	1.00000000	-0.82809492
-0.04786573	-0.30864035	0.01454073	0.00906076	-0.82809492	1.00000000

Covariance matrix
1.27755210E-16	-3.58369350E-17	5.56037190E-16	-1.67978107E-15	-2.69787757E-14	-1.77622365E-14
-3.58369350E-17	1.24172903E-15	-1.50586241E-15	-8.46797859E-15	3.87145477E-13	-3.57067058E-13
5.56037190E-16	-1.50586241E-15	3.46897573E-11	-2.14112095E-11	1.80925679E-11	2.81170998E-12
-1.67978107E-15	-8.46797859E-15	-2.14112095E-11	5.37453870E-10	-5.35881871E-10	6.89634711E-12
-2.69787757E-14	3.87145477E-13	1.80925679E-11	-5.35881871E-10	1.74208770E-09	-1.13474635E-09
-1.77622365E-14	-3.57067058E-13	2.81170998E-12	6.89634711E-12	-1.13474635E-09	1.07787235E-09