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AstDyS ∴ Objects ∴ 1998AB1 ∴ Summary
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(31198) 1998AB1  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.83644 1.189e-08 au
e 0.133557 3.343e-08
i 20.666 4.384e-06 deg
Ω 120.784 1.187e-05 deg
ω 327.046 2.278e-05 deg
M 208.285 1.861e-05 deg

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Other useful info
Absolute Magnitude (H)    14.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.4576 au
Aphelion 3.2153 au
Asc. node-Earth separation 1.52153 au
Desc. node-Earth separation 2.12177 au
Earth MOID 1.49423 au
Orbital period 1744.85 days
Date of orbit computation  feb 22 01:56
Observational summary
Optical observations (Discarded) 1628 (7)
Radar observations (Discarded) 0 (0)
Arc length 9315.61 days
Unobserved 283 days

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Ephemeris at epoch 60419 MJD
Right Ascension 313.145 deg
Declination -14.7262 deg
V Magnitude 20.34 mag
Solar Elongation 77.65 deg
Galactic Latitude -33.37 deg
Rate 0.22 deg/day
Direction 85.874 deg

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