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2004ER21  ▹ 
SUMMARY
Keplerian elements
(Epoch 59200.0 MJD)
Value 1-σ variation Units
a 0.899044 0.0002015 au
e 0.171106 0.0008622
i 7.95 0.03619 deg
Ω 357.274 0.02779 deg
ω 343.51 0.09262 deg
M 66.86 1.7 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 -0.25554 au
Desc. node-Earth separation 0.04819 au
Earth MOID 0.04003 au
Orbital period 311.365 days
Date of orbit computation   Mar 19 08:45
Observational summary
Optical observations (Discarded) 71 (1)
Radar observations (Discarded) 0 (0)
Arc length 11 days
Unobserved 6228 days

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Ephemeris
(Epoch 59318 MJD)
Right Ascension 106.972 deg
Declination 22.4126 deg
V Magnitude 25.26 mag
Solar Elongation -81.67 deg
Galactic Latitude 13.47 deg
Rate 0.786 deg/day
Direction 115.979 deg

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