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AstDyS ∴ Objects ∴ 1981ET31 ∴ Summary
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(19945) 1981ET31  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.98976 1.249e-08 au
e 0.2321 2.618e-08
i 9.558 4.761e-06 deg
Ω 178.097 1.882e-05 deg
ω 269.724 2.207e-05 deg
M 184.573 1.04e-05 deg

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Other useful info
Absolute Magnitude (H)    14.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2958 au
Aphelion 3.6837 au
Asc. node-Earth separation 1.83654 au
Desc. node-Earth separation 1.8221 au
Earth MOID 1.3363 au
Orbital period 1888.23 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 1984 (11)
Radar observations (Discarded) 0 (0)
Arc length 15457.7 days
Unobserved 318 days

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Ephemeris at epoch 60425 MJD
Right Ascension 289.441 deg
Declination -11.4723 deg
V Magnitude 20.4 mag
Solar Elongation 105.29 deg
Galactic Latitude -10.99 deg
Rate 0.073 deg/day
Direction 44.745 deg

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