AstDyS

AstDyS-2

Asteroids - Dynamic Site

AstDyS ∴ Objects ∴ 1997WR18 ∴ Orbital info ∴ Epoch epochXXX

(31163) 1997WR18 ▹

ORBITAL INFORMATION

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(ASCII data file 31163.eq1)

Keplerian elements at epoch
60400.0 MJD
	Value	1-σ variation	Units
a	2.6006	8.198e-09	au
e	0.141201	3.68e-08
i	2.69	3.744e-06	deg
Ω	99.592	9.447e-05	deg
ω	243.799	9.585e-05	deg
M	158.852	1.583e-05	deg

Other useful info
Absolute Magnitude (H)	15.5	mag
Slope parameter (G)	0.15	mag
Perihelion	2.2334	au
Aphelion	2.9678	au
Asc. node-Earth separation	1.73499	au
Desc. node-Earth separation	1.38296	au
Earth MOID	1.22691	au
Orbital period	1531.82	days
Date of orbit computation	apr 23 19:52

Correlation matrix
1.00000000	0.04481776	-0.00402004	-0.00656253	0.00787051	-0.20858588
0.04481776	1.00000000	-0.00002117	-0.00258778	0.04906417	-0.32479207
-0.00402004	-0.00002117	1.00000000	-0.18096637	0.17753678	0.00681351
-0.00656253	-0.00258778	-0.18096637	1.00000000	-0.98603692	0.00996499
0.00787051	0.04906417	0.17753678	-0.98603692	1.00000000	-0.17003647
-0.20858588	-0.32479207	0.00681351	0.00996499	-0.17003647	1.00000000

Covariance matrix
6.72088666E-17	1.35224523E-17	-1.23375567E-16	-5.08245284E-15	6.18433796E-15	-2.70670979E-14
1.35224523E-17	1.35451579E-15	-2.91671785E-18	-8.99720196E-15	1.73074634E-13	-1.89208636E-13
-1.23375567E-16	-2.91671785E-18	1.40142531E-11	-6.39987407E-11	6.37015802E-11	4.03738006E-13
-5.08245284E-15	-8.99720196E-15	-6.39987407E-11	8.92436126E-09	-8.92809161E-09	1.49007750E-11
6.18433796E-15	1.73074634E-13	6.37015802E-11	-8.92809161E-09	9.18657829E-09	-2.57966001E-10
-2.70670979E-14	-1.89208636E-13	4.03738006E-13	1.49007750E-11	-2.57966001E-10	2.50545734E-10