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(39977) 1998HR9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.6288 1.124e-08 au
e 0.240155 3.588e-08
i 14.571 3.685e-06 deg
Ω 87.965 1.694e-05 deg
ω 242.983 1.878e-05 deg
M 310.421 9.53e-06 deg

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Other useful info
Absolute Magnitude (H)    14.1 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9975 au
Aphelion 3.2601 au
Asc. node-Earth separation 1.79719 au
Desc. node-Earth separation 1.21749 au
Earth MOID 1.03133 au
Orbital period 1556.81 days
Date of orbit computation  feb 22 01:58
Observational summary
Optical observations (Discarded) 2257 (8)
Radar observations (Discarded) 0 (0)
Arc length 9213.76 days
Unobserved 282 days

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Ephemeris at epoch 60419 MJD
Right Ascension 288.761 deg
Declination -20.4039 deg
V Magnitude 18.42 mag
Solar Elongation 101.54 deg
Galactic Latitude -14.17 deg
Rate 0.266 deg/day
Direction 99.99 deg

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