NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1998SD9 ∴ Summary
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1998SD9  ▹ 
SUMMARY
Keplerian elements at epoch
57800.0 MJD
Value 1-σ variation Units
a 0.702463 7.459e-09 au
e 0.504749 5.298e-07
i 2.917 2.48e-05 deg
Ω 166.773 3.191e-05 deg
ω 6.564 9.808e-05 deg
M 278.241 0.000148 deg

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Other useful info
Absolute Magnitude (H)    24.1 mag
Slope parameter (G)    0.15 mag
Perihelion 0.3479 au
Aphelion 1.057 au
Asc. node-Earth separation -0.64381 au
Desc. node-Earth separation 0.04384 au
Earth MOID 0.00968 au
Orbital period 215.047 days
Date of orbit computation   Nov 18 11:31
Observational summary
Optical observations (Discarded) 72 (2)
Radar observations (Discarded) 0 (0)
Arc length 3644 days
Unobserved 3122 days

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Ephemeris at epoch 57840 MJD
Right Ascension 28.4516 deg
Declination 10.7571 deg
V Magnitude 25.21 mag
Solar Elongation -22.99 deg
Galactic Latitude -49.21 deg
Rate 0.276 deg/day
Direction 53.757 deg

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