AstDyS-2

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AstDyS ∴ Objects ∴ 1998HW9 ∴ Summary
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(100831) 1998HW9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.31664 7.858e-09 au
e 0.185939 3.276e-08
i 3.649 3.623e-06 deg
Ω 106.145 7.006e-05 deg
ω 163.564 7.124e-05 deg
M 84.867 1.579e-05 deg

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Other useful info
Absolute Magnitude (H)    16.1 mag
Slope parameter (G)    0.15 mag
Perihelion 1.8859 au
Aphelion 2.7474 au
Asc. node-Earth separation 1.73948 au
Desc. node-Earth separation 0.88133 au
Earth MOID 0.8699 au
Orbital period 1287.92 days
Date of orbit computation  apr 23 20:09
Observational summary
Optical observations (Discarded) 1009 (4)
Radar observations (Discarded) 0 (0)
Arc length 9325.97 days
Unobserved 175 days

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Ephemeris at epoch 60425 MJD
Right Ascension 25.0398 deg
Declination 7.6394 deg
V Magnitude 21 mag
Solar Elongation 9.32 deg
Galactic Latitude -53.28 deg
Rate 0.463 deg/day
Direction 68.941 deg

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