NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1999HF1 ∴ Summary
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(137170) 1999HF1  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 0.819139 1.16e-09 au
e 0.462513 5.595e-08
i 25.661 5.352e-06 deg
Ω 155.878 1.666e-05 deg
ω 253.393 1.519e-05 deg
M 204.401 1.449e-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 -0.24937 au
Desc. node-Earth separation -0.44138 au
Earth MOID 0.17487 au
Orbital period 270.791 days
Date of orbit computation   Oct 1 16:31
Observational summary
Optical observations (Discarded) 3152 (17)
Radar observations (Discarded) 0 (0)
Arc length 6626 days
Unobserved 528 days

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Ephemeris at epoch 58442 MJD
Right Ascension 252.547 deg
Declination -9.76138 deg
V Magnitude 16.91 mag
Solar Elongation -19.52 deg
Galactic Latitude 21.43 deg
Rate 0.865 deg/day
Direction 104.123 deg

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