NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 2004ER21 ∴ Summary
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2004ER21  ▹ 
SUMMARY
Keplerian elements at epoch
57800.0 MJD
Value 1-σ variation Units
a 0.899626 5.796e-05 au
e 0.171959 0.0004224
i 7.97 0.02393 deg
Ω 357.332 0.003913 deg
ω 343.391 0.01793 deg
M 250.353 1.101 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 -0.2537 au
Desc. node-Earth separation 0.04993 au
Earth MOID 0.04139 au
Orbital period 311.667 days
Date of orbit computation   Nov 18 11:58
Observational summary
Optical observations (Discarded) 71 (3)
Radar observations (Discarded) 0 (0)
Arc length 11 days
Unobserved 4752 days

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Ephemeris at epoch 57842 MJD
Right Ascension 326.286 deg
Declination -20.07 deg
V Magnitude 26.28 mag
Solar Elongation 47.75 deg
Galactic Latitude -46.98 deg
Rate 1.252 deg/day
Direction 69.588 deg

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