AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998HD99 ∴ Summary
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(17843) 1998HD99  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 3.16462 2.766e-08 au
e 0.102997 5.023e-08
i 2.882 5.012e-06 deg
Ω 96.056 0.0001035 deg
ω 104.582 0.0001062 deg
M 245.92 2.515e-05 deg

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Other useful info
Absolute Magnitude (H)    13.5 mag
Slope parameter (G)    0.15 mag
Perihelion 2.8387 au
Aphelion 3.4906 au
Asc. node-Earth separation 2.23058 au
Desc. node-Earth separation 2.03392 au
Earth MOID 1.83607 au
Orbital period 2056.27 days
Date of orbit computation  Oct 31 05:07
Observational summary
Optical observations (Discarded) 1217 (10)
Radar observations (Discarded) 0 (0)
Arc length 13695.5 days
Unobserved 114 days

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Ephemeris at epoch 58501 MJD
Right Ascension 82.2118 deg
Declination 23.0207 deg
V Magnitude 18.55 mag
Solar Elongation -145.51 deg
Galactic Latitude -6.35 deg
Rate 0.13 deg/day
Direction -87.704 deg

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