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AstDyS ∴ Objects ∴ 1998HD40 ∴ Summary
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(35581) 1998HD40  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.6744 1.057e-08 au
e 0.158056 5.09e-08
i 8.982 5.261e-06 deg
Ω 34.843 2.488e-05 deg
ω 168.981 2.77e-05 deg
M 332.911 1.244e-05 deg

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Other useful info
Absolute Magnitude (H)    14.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2517 au
Aphelion 3.0971 au
Asc. node-Earth separation 2.09367 au
Desc. node-Earth separation 1.2513 au
Earth MOID 1.2486 au
Orbital period 1597.49 days
Date of orbit computation  apr 23 19:53
Observational summary
Optical observations (Discarded) 1472 (12)
Radar observations (Discarded) 0 (0)
Arc length 11846 days
Unobserved 35 days

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Ephemeris at epoch 60425 MJD
Right Ascension 156.407 deg
Declination 18.4801 deg
V Magnitude 18.8 mag
Solar Elongation -116.15 deg
Galactic Latitude 55.43 deg
Rate 0.142 deg/day
Direction 156.022 deg

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