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(2212) Hephaistos  ▹ 
Keplerian elements
(Epoch 59600.0 MJD)
Value 1-σ variation Units
a 2.15953 6.581e-09 au
e 0.837361 2.716e-08
i 11.543 5.698e-06 deg
Ω 27.513 1.748e-05 deg
ω 209.413 1.735e-05 deg
M 235.31 6.82e-06 deg
Other useful info
Absolute Magnitude (H)    13.3 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.3512 au
Aphelion distance 3.9678 au
Asc. node-Earth separation 1.38985 au
Desc. node-Earth separation -0.63027 au
Earth MOID 0.116 au
Orbital period 1159.15 days
Date of orbit computation   Jan 5 13:21


Get the orbital details, including covariance and correlation
Near middle of observational arc (ASCII file) Epoch 57031.0 MJD
Near present day (ASCII file) Epoch 59600.0 MJD


Note. The elements are given with reduced precision in order to be more readable. For full precision please use the machine-readable ASCII files, which contain Equinoctial (not Keplerian) elements and are in a format suitable for OrbFit input. Also refer to the discussion in the FAQ.