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NEODyS ∴ Objects ∴ 1998HT31 ∴ Summary
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1998HT31  ▹ 
SUMMARY
Keplerian elements at epoch
57800.0 MJD
Value 1-σ variation Units
a 2.51117 0.005722 au
e 0.692942 0.001247
i 6.78 0.01122 deg
Ω 213.616 0.007645 deg
ω 80.624 0.0159 deg
M 247.784 8.263 deg

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Other useful info
Absolute Magnitude (H)    20.8 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7711 au
Aphelion 4.2513 au
Asc. node-Earth separation 0.16729 au
Desc. node-Earth separation 0.47858 au
Earth MOID 0.03142 au
Orbital period 1453.49 days
Date of orbit computation   May 15 15:37
Observational summary
Optical observations (Discarded) 147 (6)
Radar observations (Discarded) 0 (0)
Arc length 19 days
Unobserved 6960 days

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Ephemeris at epoch 57903 MJD
Right Ascension 127.698 deg
Declination 13.0129 deg
V Magnitude 27.21 mag
Solar Elongation -58.41 deg
Galactic Latitude 27.84 deg
Rate 0.199 deg/day
Direction 97.273 deg

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