AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Helenos ∴ Summary
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(1872) Helenos  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 5.31964 1.182e-07 au
e 0.047915 6.154e-08
i 14.641 6.439e-06 deg
Ω 188.789 2.343e-05 deg
ω 114.782 8.018e-05 deg
M 244.558 8.265e-05 deg

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Other useful info
Absolute Magnitude (H)    10.8 mag
Slope parameter (G)    0.15 mag
Perihelion 5.0648 au
Aphelion 5.5745 au
Asc. node-Earth separation 4.4159 au
Desc. node-Earth separation 4.20197 au
Earth MOID 4.08084 au
Orbital period 4481.49 days
Date of orbit computation  Oct 31 04:56
Observational summary
Optical observations (Discarded) 1234 (10)
Radar observations (Discarded) 0 (0)
Arc length 23202.2 days
Unobserved 204 days

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Ephemeris at epoch 58505 MJD
Right Ascension 200.284 deg
Declination -7.79864 deg
V Magnitude 18.67 mag
Solar Elongation 99.73 deg
Galactic Latitude 54.34 deg
Rate 0.052 deg/day
Direction 85.834 deg

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