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AstDyS ∴ Objects ∴ 1981EF4 ∴ Summary
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(17374) 1981EF4  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.34712 1.095e-08 au
e 0.173938 4.041e-08
i 6.75 4.228e-06 deg
Ω 245.824 3.749e-05 deg
ω 349.646 3.94e-05 deg
M 119.556 1.291e-05 deg

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Other useful info
Absolute Magnitude (H)    14.8 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9389 au
Aphelion 2.7554 au
Asc. node-Earth separation 0.92886 au
Desc. node-Earth separation 1.75896 au
Earth MOID 0.92609 au
Orbital period 1313.41 days
Date of orbit computation  Oct 31 05:07
Observational summary
Optical observations (Discarded) 1256 (13)
Radar observations (Discarded) 0 (0)
Arc length 13772.5 days
Unobserved 93 days

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Ephemeris at epoch 58504 MJD
Right Ascension 9.94779 deg
Declination 8.12506 deg
V Magnitude 20.24 mag
Solar Elongation -71.98 deg
Galactic Latitude -54.63 deg
Rate 0.295 deg/day
Direction 73.77 deg

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