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 0.899627 5.655e-05 au
e 0.171975 0.0004229
i 7.97 0.02393 deg
Ω 357.331 0.003937 deg
ω 343.392 0.01807 deg
M 121.369 1.123 deg

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Other useful info
Absolute Magnitude (H)    24.3 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7449 au
Aphelion 1.0543 au
Asc. node-Earth separation -0.25461 au
Desc. node-Earth separation 0.05151 au
Earth MOID 0.04253 au
Orbital period 311.668 days
Date of orbit computation   Jul 10 18:06
Observational summary
Optical observations (Discarded) 71 (3)
Radar observations (Discarded) 0 (0)
Arc length 11 days
Unobserved 4896 days

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Ephemeris at epoch 57986 MJD
Right Ascension 129.99 deg
Declination 22.5356 deg
V Magnitude 26.6 mag
Solar Elongation 21.74 deg
Galactic Latitude 33.34 deg
Rate 0.944 deg/day
Direction 105.751 deg

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