AstDyS-2

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AstDyS ∴ Objects ∴ 2009DD21 ∴ Summary
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(312517) 2009DD21  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.38184 1.964e-08 au
e 0.175576 6.05e-08
i 1.224 9.521e-06 deg
Ω 168.876 0.0003422 deg
ω 103.361 0.0003432 deg
M 104.838 2.904e-05 deg

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Other useful info
Absolute Magnitude (H)    17.5 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9636 au
Aphelion 2.8 au
Asc. node-Earth separation 1.41156 au
Desc. node-Earth separation 1.21154 au
Earth MOID 0.94655 au
Orbital period 1342.66 days
Date of orbit computation  Dec 20 14:48
Observational summary
Optical observations (Discarded) 150 (0)
Radar observations (Discarded) 0 (0)
Arc length 5507.16 days
Unobserved 188 days

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Ephemeris at epoch 58580 MJD
Right Ascension 56.8498 deg
Declination 18.9422 deg
V Magnitude 23.23 mag
Solar Elongation -42.22 deg
Galactic Latitude -27.23 deg
Rate 0.366 deg/day
Direction 77.073 deg

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