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(137170) 1999HF1  ▹ 
SUMMARY
Keplerian elements
(Epoch 59800.0 MJD)
Value 1-σ variation Units
a 0.819153 4.447e-10 au
e 0.462496 4.578e-08
i 25.658 5.115e-06 deg
Ω 155.86 1.728e-05 deg
ω 253.405 1.563e-05 deg
M 265.589 1.078e-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 -0.24655 au
Desc. node-Earth separation -0.44096 au
Earth MOID 0.1728 au
Orbital period 270.798 days
Date of orbit computation   Jun 27 14:18
Observational summary
Optical observations (Discarded) 5917 (14)
Radar observations (Discarded) 0 (0)
Arc length 8468 days
Unobserved 3 days

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Ephemeris
(Epoch 59759 MJD)
Right Ascension 191.955 deg
Declination 37.9912 deg
V Magnitude 16.63 mag
Solar Elongation -79.18 deg
Galactic Latitude 79.11 deg
Rate 0.509 deg/day
Direction 148.896 deg

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