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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 6188 days

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Ephemeris
(Epoch 59278 MJD)
Right Ascension 68.7901 deg
Declination 34.6755 deg
V Magnitude 24.7 mag
Solar Elongation -87.96 deg
Galactic Latitude -8.66 deg
Rate 1.021 deg/day
Direction 102.8 deg

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