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AstDyS ∴ Objects ∴ 1998AR4 ∴ Summary
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(37811) 1998AR4  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.30042 5.248e-09 au
e 0.217563 2.242e-08
i 7.24 3.577e-06 deg
Ω 308.654 2.429e-05 deg
ω 309.686 2.615e-05 deg
M 61.119 9.481e-06 deg

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Other useful info
Absolute Magnitude (H)    15.0 mag
Slope parameter (G)    0.15 mag
Perihelion 1.7999 au
Aphelion 2.8009 au
Asc. node-Earth separation 0.90954 au
Desc. node-Earth separation 1.56049 au
Earth MOID 0.79467 au
Orbital period 1274.41 days
Date of orbit computation  feb 22 01:58
Observational summary
Optical observations (Discarded) 2261 (10)
Radar observations (Discarded) 0 (0)
Arc length 16475.7 days
Unobserved 221 days

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Ephemeris at epoch 60398 MJD
Right Ascension 350.597 deg
Declination -0.94542 deg
V Magnitude 19.71 mag
Solar Elongation 17.69 deg
Galactic Latitude -56.21 deg
Rate 0.519 deg/day
Direction 63.884 deg

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