NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1999HF1 ∴ Summary
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(137170) 1999HF1  ▹ 
SUMMARY
Keplerian elements at epoch
57800.0 MJD
Value 1-σ variation Units
a 0.819139 1.208e-09 au
e 0.462468 5.681e-08
i 25.662 5.529e-06 deg
Ω 155.889 1.696e-05 deg
ω 253.38 1.55e-05 deg
M 126.734 1.383e-05 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 -0.2477 au
Desc. node-Earth separation -0.44019 au
Earth MOID 0.17359 au
Orbital period 270.792 days
Date of orbit computation   Apr 24 14:49
Observational summary
Optical observations (Discarded) 3110 (15)
Radar observations (Discarded) 0 (0)
Arc length 6577 days
Unobserved 3 days

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Ephemeris at epoch 57868 MJD
Right Ascension 305.174 deg
Declination 25.1813 deg
V Magnitude 16.28 mag
Solar Elongation 82.07 deg
Galactic Latitude -6.42 deg
Rate 0.809 deg/day
Direction 51.706 deg

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