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AstDyS ∴ Objects ∴ 1998HA4 ∴ Summary
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(37940) 1998HA4  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.54353 8.625e-09 au
e 0.160274 4.952e-08
i 5.185 3.142e-06 deg
Ω 80.369 5.176e-05 deg
ω 92.283 5.259e-05 deg
M 167.286 1.136e-05 deg

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Other useful info
Absolute Magnitude (H)    15.3 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1359 au
Aphelion 2.9512 au
Asc. node-Earth separation 1.51064 au
Desc. node-Earth separation 1.4467 au
Earth MOID 1.14906 au
Orbital period 1481.68 days
Date of orbit computation  apr 23 19:54
Observational summary
Optical observations (Discarded) 1588 (6)
Radar observations (Discarded) 0 (0)
Arc length 11296 days
Unobserved 176 days

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Ephemeris at epoch 60426 MJD
Right Ascension 1.31692 deg
Declination -3.93214 deg
V Magnitude 21.24 mag
Solar Elongation 36.48 deg
Galactic Latitude -64.32 deg
Rate 0.355 deg/day
Direction 68.048 deg

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