NEODyS-2

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1998SD9  ▹ 
SUMMARY
Keplerian elements
(Epoch 59000.0 MJD)
Value 1-σ variation Units
a 0.703086 4.892e-09 au
e 0.503954 3.684e-07
i 3.028 3.667e-05 deg
Ω 166.319 0.0001167 deg
ω 7.048 0.0001284 deg
M 125.807 0.0001113 deg

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Other useful info
Absolute Magnitude (H)    23.9 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.3488 au
Aphelion distance 1.0574 au
Asc. node-Earth separation -0.64283 au
Desc. node-Earth separation 0.0427 au
Earth MOID 0.00963 au
Orbital period 215.333 days
Date of orbit computation   May 28 12:33
Observational summary
Optical observations (Discarded) 145 (0)
Radar observations (Discarded) 1 (0)
Arc length 7291 days
Unobserved 708 days

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Ephemeris
(Epoch 59074 MJD)
Right Ascension 84.4666 deg
Declination 21.6802 deg
V Magnitude 26.01 mag
Solar Elongation 55.59 deg
Galactic Latitude -5.31 deg
Rate 1.18 deg/day
Direction 89.279 deg

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