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NEODyS ∴ Objects ∴ Hephaistos ∴ Summary
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(2212) Hephaistos  ▹ 
SUMMARY
Keplerian elements at epoch
58000.0 MJD
Value 1-σ variation Units
a 2.15983 4.014e-09 au
e 0.837669 1.452e-08
i 11.559 2.879e-06 deg
Ω 27.562 1.018e-05 deg
ω 209.349 1.009e-05 deg
M 98.433 3.241e-06 deg

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Other useful info
Absolute Magnitude (H)    13.2 mag
Slope parameter (G)    0.15 mag
Perihelion 0.3506 au
Aphelion 3.9691 au
Asc. node-Earth separation 1.39257 au
Desc. node-Earth separation -0.63034 au
Earth MOID 0.11613 au
Orbital period 1159.38 days
Date of orbit computation   Nov 23 15:02
Observational summary
Optical observations (Discarded) 2355 (72)
Radar observations (Discarded) 0 (0)
Arc length 15680 days
Unobserved 3 days

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Ephemeris at epoch 58082 MJD
Right Ascension 37.3676 deg
Declination 20.2477 deg
V Magnitude 18.76 mag
Solar Elongation -158.25 deg
Galactic Latitude -37.01 deg
Rate 0.253 deg/day
Direction -108.136 deg

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