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Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Io ∴ Orbital info ∴ Epoch epochXXX
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(85) Io  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 85.eq0)
Keplerian elements at epoch
57693.5 MJD
Value 1-σ variation Units
a 2.65303 3.553e-09 au
e 0.19404 2.087e-08
i 11.961 2.848e-06 deg
Ω 203.121 1.061e-05 deg
ω 123.146 1.296e-05 deg
M 13.755 7.796e-06 deg
Other useful info
Absolute Magnitude (H)    8.0 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1382 au
Aphelion 3.1678 au
Asc. node-Earth separation 1.85188 au
Desc. node-Earth separation 1.31143 au
Earth MOID 1.15342 au
Orbital period 1578.38 days
Date of orbit computation  apr 23 19:45
Correlation matrix
1.000000000.434193620.051238470.037571600.07599372-0.26857940
0.434193621.00000000-0.00677308-0.00733453-0.00740775-0.16608333
0.05123847-0.006773081.000000000.51314223-0.40646873-0.00003461
0.03757160-0.007334530.513142231.00000000-0.79485688-0.00309309
0.07599372-0.00740775-0.40646873-0.794856881.00000000-0.58273922
-0.26857940-0.16608333-0.00003461-0.00309309-0.582739221.00000000
Covariance matrix
1.26264735E-173.21986685E-175.18497919E-161.41698028E-153.49996844E-15-7.44043286E-15
3.21986685E-174.35538827E-16-4.02540465E-16-1.62460958E-15-2.00375661E-15-2.70224025E-14
5.18497919E-16-4.02540465E-168.10997738E-121.55099585E-11-1.50031462E-11-7.68460710E-16
1.41698028E-15-1.62460958E-151.55099585E-111.12648681E-10-1.09344608E-10-2.55941256E-13
3.49996844E-15-2.00375661E-15-1.50031462E-11-1.09344608E-101.67992834E-10-5.88849209E-11
-7.44043286E-15-2.70224025E-14-7.68460710E-16-2.55941256E-13-5.88849209E-116.07811540E-11