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(137170) 1999HF1  ▹ 
SUMMARY
Keplerian elements
(Epoch 60400.0 MJD)
Value 1-σ variation Units
a 0.819167 4.308e-10 au
e 0.462527 4.333e-08
i 25.658 4.115e-06 deg
Ω 155.853 1.492e-05 deg
ω 253.417 1.35e-05 deg
M 343.196 1.026e-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 1.1981 au
Asc. node-Earth separation -0.24765 au
Desc. node-Earth separation -0.44063 au
Earth MOID 0.17357 au
Orbital period 270.805 days
Date of orbit computation   feb 26 10:20
Observational summary
Optical observations (Discarded) 6825 (16)
Radar observations (Discarded) 0 (0)
Arc length 8807 days
Unobserved 365 days

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Ephemeris
(Epoch 60461 MJD)
Right Ascension 113.615 deg
Declination 25.0655 deg
V Magnitude 16.7 mag
Solar Elongation -41.72 deg
Galactic Latitude 20.1 deg
Rate 1.346 deg/day
Direction 83.853 deg

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