NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Hephaistos ∴ Summary
Contact »
(2212) Hephaistos  ▹ 
SUMMARY
Keplerian elements
(Epoch 59200.0 MJD)
Value 1-σ variation Units
a 2.15924 6.6e-09 au
e 0.837583 2.727e-08
i 11.549 5.781e-06 deg
Ω 27.528 1.756e-05 deg
ω 209.402 1.744e-05 deg
M 111.035 6.351e-06 deg

More info »
Other useful info
Absolute Magnitude (H)    13.3 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.3507 au
Aphelion distance 3.9678 au
Asc. node-Earth separation 1.38713 au
Desc. node-Earth separation -0.63239 au
Earth MOID 0.11583 au
Orbital period 1158.91 days
Date of orbit computation   Mar 19 10:54
Observational summary
Optical observations (Discarded) 2942 (4)
Radar observations (Discarded) 0 (0)
Arc length 16881 days
Unobserved 102 days

More info »
Ephemeris
(Epoch 59382 MJD)
Right Ascension 57.5754 deg
Declination 24.5096 deg
V Magnitude 20.23 mag
Solar Elongation 25.39 deg
Galactic Latitude -22.72 deg
Rate 0.222 deg/day
Direction 74.169 deg

More info »