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.eq0)

Keplerian elements at epoch
57509.1 MJD
	Value	1-σ variation	Units
a	2.60382	8.346e-09	au
e	0.139753	3.684e-08
i	2.69	3.742e-06	deg
Ω	99.676	9.44e-05	deg
ω	243.824	9.579e-05	deg
M	199.759	1.564e-05	deg

Other useful info
Absolute Magnitude (H)	15.5	mag
Slope parameter (G)	0.15	mag
Perihelion	2.2399	au
Aphelion	2.9677	au
Asc. node-Earth separation	1.73688	au
Desc. node-Earth separation	1.38796	au
Earth MOID	1.23234	au
Orbital period	1534.67	days
Date of orbit computation	apr 23 19:52

Correlation matrix
1.00000000	0.08184343	-0.00741512	-0.00665044	0.00601417	0.00272654
0.08184343	1.00000000	0.00009852	-0.00257856	0.04700335	-0.30776177
-0.00741512	0.00009852	1.00000000	-0.17884728	0.17542419	0.00585372
-0.00665044	-0.00257856	-0.17884728	1.00000000	-0.98587892	0.00865057
0.00601417	0.04700335	0.17542419	-0.98587892	1.00000000	-0.17312152
0.00272654	-0.30776177	0.00585372	0.00865057	-0.17312152	1.00000000

Covariance matrix
6.96487632E-17	2.51630298E-17	-2.31571814E-16	-5.23941696E-15	4.80803075E-15	3.55961172E-16
2.51630298E-17	1.35720299E-15	1.35812616E-17	-8.96759597E-15	1.65877073E-13	-1.77366527E-13
-2.31571814E-16	1.35812616E-17	1.40030341E-11	-6.31785047E-11	6.28833539E-11	3.42671005E-13
-5.23941696E-15	-8.96759597E-15	-6.31785047E-11	8.91152186E-09	-8.91527349E-09	1.27748377E-11
4.80803075E-15	1.65877073E-13	6.28833539E-11	-8.91527349E-09	9.17635706E-09	-2.59430353E-10
3.55961172E-16	-1.77366527E-13	3.42671005E-13	1.27748377E-11	-2.59430353E-10	2.44719836E-10