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(137170) 1999HF1  ▹ 
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
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


Get the orbital details, including covariance and correlation
Near middle of observational arc (ASCII file) Epoch 57083.6 MJD
Near present day (ASCII file) Epoch 60000.0 MJD


Note. The elements are given with reduced precision in order to be more readable. For full precision please use the machine-readable ASCII files, which contain Equinoctial (not Keplerian) elements and are in a format suitable for OrbFit input. Also refer to the discussion in the FAQ.