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(137170) 1999HF1  ▹ 
SUMMARY
Keplerian elements
(Epoch 60000.0 MJD)
Value 1-σ variation Units
a 0.819165 4.368e-10 au
e 0.462505 4.556e-08
i 25.658 4.298e-06 deg
Ω 155.859 1.517e-05 deg
ω 253.405 1.374e-05 deg
M 171.463 1.05e-05 deg

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Other useful info
Absolute Magnitude (H)    14.7 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.4403 au
Aphelion distance 1.198 au
Asc. node-Earth separation -0.2478 au
Desc. node-Earth separation -0.44205 au
Earth MOID 0.17355 au
Orbital period 270.804 days
Date of orbit computation   Jan 25 13:30
Observational summary
Optical observations (Discarded) 6725 (15)
Radar observations (Discarded) 0 (0)
Arc length 8527 days
Unobserved 167 days

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Ephemeris
(Epoch 59982 MJD)
Right Ascension 262.177 deg
Declination -4.1792 deg
V Magnitude 17.38 mag
Solar Elongation 57.97 deg
Galactic Latitude 16.28 deg
Rate 0.74 deg/day
Direction 76.917 deg

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