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AstDyS ∴ Objects ∴ 1981ET9 ∴ Summary
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(90685) 1981ET9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.35103 7.707e-09 au
e 0.121906 3.444e-08
i 4.184 3.541e-06 deg
Ω 298.151 5.967e-05 deg
ω 182.855 6.279e-05 deg
M 22.76 1.978e-05 deg

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Other useful info
Absolute Magnitude (H)    16.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0644 au
Aphelion 2.6376 au
Asc. node-Earth separation 1.62123 au
Desc. node-Earth separation 1.08138 au
Earth MOID 1.08081 au
Orbital period 1316.7 days
Date of orbit computation  apr 23 20:06
Observational summary
Optical observations (Discarded) 1284 (198)
Radar observations (Discarded) 0 (0)
Arc length 16234 days
Unobserved 53 days

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Ephemeris at epoch 60425 MJD
Right Ascension 131.634 deg
Declination 14.6001 deg
V Magnitude 20.3 mag
Solar Elongation -95.13 deg
Galactic Latitude 31.97 deg
Rate 0.307 deg/day
Direction 105.72 deg

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