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AstDyS ∴ Objects ∴ 1998EF8 ∴ Summary
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(31261) 1998EF8  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.80111 9.293e-09 au
e 0.233686 3.543e-08
i 8.482 4.242e-06 deg
Ω 173.503 2.088e-05 deg
ω 211.326 2.235e-05 deg
M 331.431 8.219e-06 deg

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Other useful info
Absolute Magnitude (H)    14.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1465 au
Aphelion 3.4557 au
Asc. node-Earth separation 2.31456 au
Desc. node-Earth separation 1.20273 au
Earth MOID 1.15487 au
Orbital period 1712.36 days
Date of orbit computation  feb 22 01:56
Observational summary
Optical observations (Discarded) 1755 (20)
Radar observations (Discarded) 0 (0)
Arc length 11655.6 days
Unobserved 227 days

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Ephemeris at epoch 60397 MJD
Right Ascension 347.693 deg
Declination -3.57588 deg
V Magnitude 19.31 mag
Solar Elongation 20.24 deg
Galactic Latitude -56.34 deg
Rate 0.513 deg/day
Direction 70.462 deg

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