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NEODyS ∴ Objects ∴ 1999HF1 ∴ Summary
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(137170) 1999HF1  ▹ 
SUMMARY
Keplerian elements
(Epoch 59200.0 MJD)
Value 1-σ variation Units
a 0.81915 7.331e-10 au
e 0.462437 5.093e-08
i 25.66 5.591e-06 deg
Ω 155.866 1.973e-05 deg
ω 253.408 1.743e-05 deg
M 187.939 1.373e-05 deg

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Other useful info
Absolute Magnitude (H)    14.6 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.4403 au
Aphelion distance 1.198 au
Asc. node-Earth separation -0.24813 au
Desc. node-Earth separation -0.44232 au
Earth MOID 0.17402 au
Orbital period 270.797 days
Date of orbit computation   Jul 31 14:20
Observational summary
Optical observations (Discarded) 3811 (10)
Radar observations (Discarded) 0 (0)
Arc length 8137 days
Unobserved 82 days

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Ephemeris
(Epoch 59507 MJD)
Right Ascension 232.051 deg
Declination -3.77063 deg
V Magnitude 17.32 mag
Solar Elongation -27.98 deg
Galactic Latitude 41.17 deg
Rate 0.786 deg/day
Direction 109.256 deg

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