NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1998SD15 ∴ Summary
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(162117) 1998SD15  ▹ 
SUMMARY
Keplerian elements
(Epoch 60600.0 MJD)
Value 1-σ variation Units
a 0.932564 3.144e-09 au
e 0.344898 1.652e-07
i 26.797 1.454e-05 deg
Ω 183.918 3.774e-06 deg
ω 35.861 1.143e-05 deg
M 86.994 3.036e-05 deg

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Non-gravitational parameters
Value 1-σ variation Units
A1 N/A N/A au/day2
A2 -1.703e-14 3.791e-15 au/day2
Other useful info
Absolute Magnitude (H)    19.1 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.6109 au
Aphelion distance 1.2542 au
Asc. node-Earth separation -0.35313 au
Desc. node-Earth separation 0.13808 au
Earth MOID 0.1108 au
Orbital period 328.94 days
Date of orbit computation   Jul 29 10:56

Observational summary
Optical observations (Discarded) 549 (0)
Radar observations (Discarded) 0 (0)
Arc length 7263 days
Unobserved 2254 days

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Ephemeris
(Epoch 60597 MJD)
Right Ascension 271.644 deg
Declination -8.19304 deg
V Magnitude 20.65 mag
Solar Elongation -71.58 deg
Galactic Latitude 6.11 deg
Rate 1.56 deg/day
Direction 111.126 deg

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