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AstDyS ∴ Objects ∴ 1999ER ∴ Summary
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(162163) 1999ER  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.30624 1.683e-08 au
e 0.211179 5.4e-08
i 3.495 7.428e-06 deg
Ω 149.504 0.0001027 deg
ω 145.225 0.0001051 deg
M 90.231 1.979e-05 deg

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Other useful info
Absolute Magnitude (H)    17.1 mag
Slope parameter (G)    0.15 mag
Perihelion 1.8192 au
Aphelion 2.7933 au
Asc. node-Earth separation 1.6761 au
Desc. node-Earth separation 0.86596 au
Earth MOID 0.80348 au
Orbital period 1279.25 days
Date of orbit computation  Oct 31 06:39
Observational summary
Optical observations (Discarded) 255 (0)
Radar observations (Discarded) 0 (0)
Arc length 7128.26 days
Unobserved 221 days

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Ephemeris at epoch 58593 MJD
Right Ascension 74.442 deg
Declination 20.2044 deg
V Magnitude 22.75 mag
Solar Elongation -46.08 deg
Galactic Latitude -13.89 deg
Rate 0.361 deg/day
Direction 81.921 deg

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