AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Hedera ∴ Summary
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(1251) Hedera  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.71586 9.661e-09 au
e 0.157801 3.559e-08
i 6.05 4.09e-06 deg
Ω 140.645 3.695e-05 deg
ω 217.399 3.91e-05 deg
M 144.05 1.275e-05 deg

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Other useful info
Absolute Magnitude (H)    10.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2873 au
Aphelion 3.1444 au
Asc. node-Earth separation 2.0396 au
Desc. node-Earth separation 1.33978 au
Earth MOID 1.28568 au
Orbital period 1634.78 days
Date of orbit computation  Oct 31 04:55
Observational summary
Optical observations (Discarded) 2392 (48)
Radar observations (Discarded) 0 (0)
Arc length 40735.2 days
Unobserved 162 days

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Ephemeris at epoch 58568 MJD
Right Ascension 178.334 deg
Declination 6.65717 deg
V Magnitude 15.31 mag
Solar Elongation -169.52 deg
Galactic Latitude 65.31 deg
Rate 0.219 deg/day
Direction -62.614 deg

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