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AstDyS ∴ Objects ∴ 1998HN9 ∴ Summary
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(155442) 1998HN9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.76352 1.676e-08 au
e 0.096572 4.104e-08
i 9.952 4.532e-06 deg
Ω 136.672 2.393e-05 deg
ω 338.836 3.394e-05 deg
M 330.587 2.45e-05 deg

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Other useful info
Absolute Magnitude (H)    15.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.4966 au
Aphelion 3.0304 au
Asc. node-Earth separation 1.52594 au
Desc. node-Earth separation 1.9952 au
Earth MOID 1.5158 au
Orbital period 1678 days
Date of orbit computation  feb 22 02:23
Observational summary
Optical observations (Discarded) 802 (7)
Radar observations (Discarded) 0 (0)
Arc length 9401.84 days
Unobserved 94 days

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Ephemeris at epoch 60418 MJD
Right Ascension 68.9214 deg
Declination 15.7491 deg
V Magnitude 21.19 mag
Solar Elongation -41.88 deg
Galactic Latitude -20.76 deg
Rate 0.422 deg/day
Direction 76.464 deg

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