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AstDyS ∴ Objects ∴ Happelia ∴ Summary
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(578) Happelia  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.75312 5.266e-09 au
e 0.192244 2.196e-08
i 6.147 2.712e-06 deg
Ω 29.372 2.315e-05 deg
ω 261.805 2.45e-05 deg
M 84.811 9.419e-06 deg

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Other useful info
Absolute Magnitude (H)    9.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2238 au
Aphelion 3.2824 au
Asc. node-Earth separation 1.73159 au
Desc. node-Earth separation 1.57632 au
Earth MOID 1.21786 au
Orbital period 1668.54 days
Date of orbit computation  apr 23 19:45
Observational summary
Optical observations (Discarded) 7893 (66)
Radar observations (Discarded) 0 (0)
Arc length 45538.2 days
Unobserved 81 days

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Ephemeris at epoch 60425 MJD
Right Ascension 37.9881 deg
Declination 16.0581 deg
V Magnitude 15.03 mag
Solar Elongation -5.9 deg
Galactic Latitude -40.4 deg
Rate 0.399 deg/day
Direction 69.584 deg

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