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NEODyS ∴ Objects ∴ Hephaistos ∴ Orbital info ∴ Epoch 57825 MJD
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(2212) Hephaistos  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 2212.eq0)
Keplerian elements
(Epoch 57825.7 MJD)
Value 1-σ variation Units
a 2.15963 3.857e-09 au
e 0.837648 2.146e-08
i 11.56 4.646e-06 deg
Ω 27.562 1.48e-05 deg
ω 209.347 1.462e-05 deg
M 44.311 2.146e-06 deg
Other useful info
Absolute Magnitude (H)    13.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.3506 au
Aphelion distance 3.9686 au
Asc. node-Earth separation 1.3937 au
Desc. node-Earth separation -0.63142 au
Earth MOID 0.11617 au
Orbital period 1159.22 days
Date of orbit computation   Aug 13 14:48

Covariance matrix
1.48771999E-17-2.87445134E-17-2.96727349E-15-7.86081607E-157.76514976E-151.88709011E-15
-2.87445134E-174.60457804E-16-3.10964206E-15-3.83662973E-15-4.52130648E-151.23660326E-14
-2.96727349E-15-3.10964206E-152.15844027E-113.53189443E-11-3.38459917E-11-8.99927447E-13
-7.86081607E-15-3.83662973E-153.53189443E-112.19132950E-10-2.13340071E-10-2.29451269E-12
7.76514976E-15-4.52130648E-15-3.38459917E-11-2.13340071E-102.13659246E-101.75698969E-13
1.88709011E-151.23660326E-14-8.99927447E-13-2.29451269E-121.75698969E-134.60706568E-12

Correlation matrix
1.00000000-0.34729573-0.16558728-0.137674400.137729950.22793963
-0.347295731.00000000-0.03119216-0.01207817-0.014414790.26848700
-0.16558728-0.031192161.000000000.51355132-0.49839810-0.09024544
-0.13767440-0.012078170.513551321.00000000-0.98595648-0.07221450
0.13772995-0.01441479-0.49839810-0.985956481.000000000.00560010
0.227939630.26848700-0.09024544-0.072214500.005600101.00000000