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2004ER21  ▹ 
SUMMARY
Keplerian elements
(Epoch 59000.0 MJD)
Value 1-σ variation Units
a 0.899042 0.0001973 au
e 0.171094 0.0008608
i 7.95 0.03622 deg
Ω 357.276 0.02804 deg
ω 343.506 0.09362 deg
M 195.618 1.777 deg

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Other useful info
Absolute Magnitude (H)    24.3 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.7452 au
Aphelion distance 1.0529 au
Asc. node-Earth separation -0.25388 au
Desc. node-Earth separation 0.04855 au
Earth MOID 0.0404 au
Orbital period 311.364 days
Date of orbit computation   May 28 12:36
Observational summary
Optical observations (Discarded) 71 (1)
Radar observations (Discarded) 0 (0)
Arc length 11 days
Unobserved 6054 days

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Ephemeris
(Epoch 59144 MJD)
Right Ascension 255.81 deg
Declination -24.7621 deg
V Magnitude 25.94 mag
Solar Elongation -48.39 deg
Galactic Latitude 10.17 deg
Rate 1.092 deg/day
Direction 84.41 deg

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