NEODyS-2

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1998SD9  ▹ 
SUMMARY
Keplerian elements
(Epoch 59800.0 MJD)
Value 1-σ variation Units
a 0.702466 1.299e-08 au
e 0.504479 3.78e-07
i 2.988 3.917e-05 deg
Ω 165.752 0.0001257 deg
ω 7.697 0.0001418 deg
M 24.285 0.0001054 deg

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Other useful info
Absolute Magnitude (H)    23.9 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.3481 au
Aphelion distance 1.0568 au
Asc. node-Earth separation -0.64178 au
Desc. node-Earth separation 0.03998 au
Earth MOID 0.00874 au
Orbital period 215.049 days
Date of orbit computation   giu 8 14:42
Observational summary
Optical observations (Discarded) 149 (5)
Radar observations (Discarded) 1 (0)
Arc length 7302 days
Unobserved 1382 days

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Ephemeris
(Epoch 59758 MJD)
Right Ascension 85.3917 deg
Declination 22.2351 deg
V Magnitude 24.73 mag
Solar Elongation 10.33 deg
Galactic Latitude -4.29 deg
Rate 1.448 deg/day
Direction 87.732 deg

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