AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1998HJ81 ∴ Orbital info ∴ Epoch epochXXX

(55955) 1998HJ81 ▹

ORBITAL INFORMATION

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(ASCII data file 55955.eq0)

Keplerian elements at epoch
57606.7 MJD
	Value	1-σ variation	Units
a	3.21162	1.725e-08	au
e	0.154791	3.466e-08
i	2.542	4.177e-06	deg
Ω	61.635	9.984e-05	deg
ω	214.282	0.0001009	deg
M	12.2	1.681e-05	deg

Other useful info
Absolute Magnitude (H)	14.4	mag
Slope parameter (G)	0.15	mag
Perihelion	2.7145	au
Aphelion	3.7088	au
Asc. node-Earth separation	2.60594	au
Desc. node-Earth separation	1.7664	au
Earth MOID	1.69809	au
Orbital period	2102.25	days
Date of orbit computation	apr 23 19:58

Correlation matrix
1.00000000	-0.14680562	0.02130828	-0.01900586	-0.04135574	0.34503015
-0.14680562	1.00000000	0.00362731	0.00914261	0.00157573	-0.02441313
0.02130828	0.00362731	1.00000000	-0.19533480	0.19257383	0.00654231
-0.01900586	0.00914261	-0.19533480	1.00000000	-0.98554435	-0.01701754
-0.04135574	0.00157573	0.19257383	-0.98554435	1.00000000	-0.14990568
0.34503015	-0.02441313	0.00654231	-0.01701754	-0.14990568	1.00000000

Covariance matrix
2.97433975E-16	-8.77658488E-17	1.53503391E-15	-3.27262300E-14	-7.19586211E-14	1.00029956E-13
-8.77658488E-17	1.20164219E-15	5.25226646E-16	3.16425086E-14	5.51086791E-15	-1.42261944E-14
1.53503391E-15	5.25226646E-16	1.74481106E-11	-8.14642292E-11	8.11564815E-11	4.59391773E-13
-3.27262300E-14	3.16425086E-14	-8.14642292E-11	9.96841831E-09	-9.92752615E-09	-2.85619336E-11
-7.19586211E-14	5.51086791E-15	8.11564815E-11	-9.92752615E-09	1.01789616E-08	-2.54242165E-10
1.00029956E-13	-1.42261944E-14	4.59391773E-13	-2.85619336E-11	-2.54242165E-10	2.82589154E-10