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2004ER21  ▹ 
SUMMARY
Keplerian elements
(Epoch 59600.0 MJD)
Value 1-σ variation Units
a 0.899155 0.0002133 au
e 0.171041 0.0008508
i 7.95 0.03624 deg
Ω 357.263 0.02629 deg
ω 343.514 0.08886 deg
M 169.277 1.536 deg

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Other useful info
Absolute Magnitude (H)    24.3 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.7454 au
Aphelion distance 1.0529 au
Asc. node-Earth separation -0.25318 au
Desc. node-Earth separation 0.04906 au
Earth MOID 0.04089 au
Orbital period 311.423 days
Date of orbit computation   Oct 20 10:03
Observational summary
Optical observations (Discarded) 71 (1)
Radar observations (Discarded) 0 (0)
Arc length 11 days
Unobserved 6466 days

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Ephemeris
(Epoch 59556 MJD)
Right Ascension 189.248 deg
Declination 7.41768 deg
V Magnitude 25.85 mag
Solar Elongation 70.61 deg
Galactic Latitude 69.99 deg
Rate 0.763 deg/day
Direction 117.819 deg

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