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2004ER21  ▹ 
SUMMARY
Keplerian elements
(Epoch 58800.0 MJD)
Value 1-σ variation Units
a 0.899634 9.031e-05 au
e 0.171616 0.0006076
i 7.95 0.03621 deg
Ω 357.31 0.01062 deg
ω 343.426 0.03261 deg
M 324.443 1.804 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 1.054 au
Asc. node-Earth separation -0.25407 au
Desc. node-Earth separation 0.05116 au
Earth MOID 0.04242 au
Orbital period 311.672 days
Date of orbit computation   Nov 8 13:41
Observational summary
Optical observations (Discarded) 71 (1)
Radar observations (Discarded) 0 (0)
Arc length 11 days
Unobserved 5776 days

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Ephemeris
(Epoch 58866 MJD)
Right Ascension 339.737 deg
Declination -4.83686 deg
V Magnitude 26.17 mag
Solar Elongation -42.52 deg
Galactic Latitude -51.37 deg
Rate 1.281 deg/day
Direction 62.301 deg

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