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(2688) Halley  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 3.17121 1.889e-08 au
e 0.143482 3.419e-08
i 3.449 3.792e-06 deg
Ω 95.24 8.455e-05 deg
ω 188.412 8.657e-05 deg
M 128.243 1.807e-05 deg

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Other useful info
Absolute Magnitude (H)    11.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.7162 au
Aphelion 3.6262 au
Asc. node-Earth separation 2.6354 au
Desc. node-Earth separation 1.70229 au
Earth MOID 1.6986 au
Orbital period 2062.7 days
Date of orbit computation  Oct 31 04:56
Observational summary
Optical observations (Discarded) 2146 (12)
Radar observations (Discarded) 0 (0)
Arc length 24906.2 days
Unobserved 116 days

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Ephemeris at epoch 58530 MJD
Right Ascension 63.9422 deg
Declination 20.3737 deg
V Magnitude 17.99 mag
Solar Elongation -98.92 deg
Galactic Latitude -21.43 deg
Rate 0.095 deg/day
Direction 72.25 deg

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