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Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1999HF1 ∴ Summary
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(137170) 1999HF1  ▹ 
SUMMARY
Keplerian elements at epoch
58200.0 MJD
Value 1-σ variation Units
a 0.819124 7.098e-10 au
e 0.462522 3.432e-08
i 25.661 3.386e-06 deg
Ω 155.881 1.098e-05 deg
ω 253.388 9.855e-06 deg
M 298.514 8.857e-06 deg

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Other useful info
Absolute Magnitude (H)    14.5 mag
Slope parameter (G)    0.15 mag
Perihelion 0.4403 au
Aphelion 1.198 au
Asc. node-Earth separation -0.24797 au
Desc. node-Earth separation -0.44161 au
Earth MOID 0.17364 au
Orbital period 270.784 days
Date of orbit computation   Feb 5 11:48
Observational summary
Optical observations (Discarded) 3152 (69)
Radar observations (Discarded) 0 (0)
Arc length 6626 days
Unobserved 257 days

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Ephemeris at epoch 58171 MJD
Right Ascension 300.713 deg
Declination -5.77311 deg
V Magnitude 17.06 mag
Solar Elongation 34.24 deg
Galactic Latitude -18.5 deg
Rate 0.982 deg/day
Direction 83.86 deg

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