NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1998SD15 ∴ Summary
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(162117) 1998SD15  ▹ 
SUMMARY
Keplerian elements
(Epoch 59000.0 MJD)
Value 1-σ variation Units
a 0.932581 2.314e-09 au
e 0.344836 1.667e-07
i 26.797 1.459e-05 deg
Ω 183.932 3.779e-06 deg
ω 35.854 1.167e-05 deg
M 136.084 2.882e-05 deg

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Non-gravitational parameters
Value 1-σ variation Units
A1 N/A N/A au/day2
A2 -1.713e-14 3.796e-15 au/day2
Other useful info
Absolute Magnitude (H)    19.1 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.611 au
Aphelion distance 1.2542 au
Asc. node-Earth separation -0.35514 au
Desc. node-Earth separation 0.13874 au
Earth MOID 0.11129 au
Orbital period 328.949 days
Date of orbit computation   Dec 24 15:46

Observational summary
Optical observations (Discarded) 543 (0)
Radar observations (Discarded) 0 (0)
Arc length 7263 days
Unobserved 933 days

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Ephemeris
(Epoch 59276 MJD)
Right Ascension 340.221 deg
Declination -2.04118 deg
V Magnitude 20.98 mag
Solar Elongation 6 deg
Galactic Latitude -49.93 deg
Rate 0.946 deg/day
Direction 78.51 deg

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