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AstDyS ∴ Objects ∴ 1998HM21 ∴ Summary
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(210499) 1998HM21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.36333 7.67e-09 au
e 0.138011 3.955e-08
i 2.53 4.361e-06 deg
Ω 8.476 7.87e-05 deg
ω 175.64 7.987e-05 deg
M 60.206 1.432e-05 deg

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Other useful info
Absolute Magnitude (H)    16.5 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0372 au
Aphelion 2.6895 au
Asc. node-Earth separation 1.68788 au
Desc. node-Earth separation 1.03951 au
Earth MOID 1.03943 au
Orbital period 1327.05 days
Date of orbit computation  apr 23 20:33
Observational summary
Optical observations (Discarded) 860 (8)
Radar observations (Discarded) 0 (0)
Arc length 9146.23 days
Unobserved 402 days

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Ephemeris at epoch 60425 MJD
Right Ascension 294.354 deg
Declination -24.675 deg
V Magnitude 20.75 mag
Solar Elongation 102.89 deg
Galactic Latitude -20.58 deg
Rate 0.194 deg/day
Direction 87.305 deg

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