AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998YM31 ∴ Summary
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(121005) 1998YM31  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 3.954 6.743e-08 au
e 0.167011 5.701e-08
i 7.944 6.563e-06 deg
Ω 212.077 4.362e-05 deg
ω 100.577 4.785e-05 deg
M 286.516 2.336e-05 deg

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Other useful info
Absolute Magnitude (H)    13.7 mag
Slope parameter (G)    0.15 mag
Perihelion 3.2936 au
Aphelion 4.6144 au
Asc. node-Earth separation 2.9581 au
Desc. node-Earth separation 2.73517 au
Earth MOID 2.29221 au
Orbital period 2871.79 days
Date of orbit computation  Oct 31 06:12
Observational summary
Optical observations (Discarded) 553 (11)
Radar observations (Discarded) 0 (0)
Arc length 8384.41 days
Unobserved 315 days

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Ephemeris at epoch 58566 MJD
Right Ascension 257.394 deg
Declination -18.3857 deg
V Magnitude 19.95 mag
Solar Elongation 104.75 deg
Galactic Latitude 12.67 deg
Rate 0.099 deg/day
Direction 71.472 deg

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