NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 2004ER21 ∴ Summary
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2004ER21  ▹ 
SUMMARY
Keplerian elements at epoch
58000.0 MJD
Value 1-σ variation Units
a 0.899586 3.982e-05 au
e 0.172292 0.0003085
i 7.988 0.01694 deg
Ω 357.334 0.00199 deg
ω 343.379 0.01178 deg
M 122.195 0.8013 deg

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Other useful info
Absolute Magnitude (H)    24.3 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7446 au
Aphelion 1.0546 au
Asc. node-Earth separation -0.25492 au
Desc. node-Earth separation 0.05171 au
Earth MOID 0.04269 au
Orbital period 311.647 days
Date of orbit computation   Oct 9 18:03
Observational summary
Optical observations (Discarded) 71 (7)
Radar observations (Discarded) 0 (0)
Arc length 11 days
Unobserved 4960 days

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Ephemeris at epoch 58050 MJD
Right Ascension 185.022 deg
Declination -0.76227 deg
V Magnitude 26.87 mag
Solar Elongation 25.65 deg
Galactic Latitude 61.11 deg
Rate 0.903 deg/day
Direction 117.253 deg

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