AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1981EN7 ∴ Orbital info ∴ Epoch epochXXX

(20977) 1981EN7 ▹

ORBITAL INFORMATION

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(ASCII data file 20977.eq1)

Keplerian elements at epoch
60400.0 MJD
	Value	1-σ variation	Units
a	2.98782	1.698e-08	au
e	0.092508	4.858e-08
i	9.279	4.856e-06	deg
Ω	328.49	2.317e-05	deg
ω	27.51	3.138e-05	deg
M	300.552	2.113e-05	deg

Other useful info
Absolute Magnitude (H)	13.8	mag
Slope parameter (G)	0.15	mag
Perihelion	2.7114	au
Aphelion	3.2642	au
Asc. node-Earth separation	1.72642	au
Desc. node-Earth separation	2.23922	au
Earth MOID	1.70951	au
Orbital period	1886.38	days
Date of orbit computation	apr 23 19:50

Correlation matrix
1.00000000	0.11680710	0.00685065	0.00931154	0.00447246	-0.21713221
0.11680710	1.00000000	0.00067607	0.00085571	-0.15871454	0.14684929
0.00685065	0.00067607	1.00000000	0.15956918	-0.12331110	0.00960632
0.00931154	0.00085571	0.15956918	1.00000000	-0.72830995	0.00081176
0.00447246	-0.15871454	-0.12331110	-0.72830995	1.00000000	-0.66416683
-0.21713221	0.14684929	0.00960632	0.00081176	-0.66416683	1.00000000

Covariance matrix
2.88358805E-16	9.63664324E-17	5.64909867E-16	3.66324408E-15	2.38331230E-15	-7.79236196E-14
9.63664324E-17	2.36036875E-15	1.59500028E-16	9.63156355E-16	-2.41977203E-13	1.50778716E-13
5.64909867E-16	1.59500028E-16	2.35809587E-11	1.79517822E-11	-1.87910359E-11	9.85862187E-13
3.66324408E-15	9.63156355E-16	1.79517822E-11	5.36729767E-10	-5.29495054E-10	3.97452655E-13
2.38331230E-15	-2.41977203E-13	-1.87910359E-11	-5.29495054E-10	9.84771890E-10	-4.40477014E-10
-7.79236196E-14	1.50778716E-13	9.85862187E-13	3.97452655E-13	-4.40477014E-10	4.46638848E-10