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AstDyS ∴ Objects ∴ 1998SD61 ∴ Summary
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(162121) 1998SD61  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.65482 2.284e-08 au
e 0.183434 7.432e-08
i 11.66 8.348e-06 deg
Ω 218.059 3.29e-05 deg
ω 122.862 4.042e-05 deg
M 247.083 2.14e-05 deg

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Other useful info
Absolute Magnitude (H)    15.5 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1678 au
Aphelion 3.1418 au
Asc. node-Earth separation 1.84037 au
Desc. node-Earth separation 1.34051 au
Earth MOID 1.18547 au
Orbital period 1579.98 days
Date of orbit computation  Oct 31 06:38
Observational summary
Optical observations (Discarded) 432 (6)
Radar observations (Discarded) 0 (0)
Arc length 7150.14 days
Unobserved 340 days

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Ephemeris at epoch 58564 MJD
Right Ascension 265.985 deg
Declination -17.6603 deg
V Magnitude 20.55 mag
Solar Elongation 94.64 deg
Galactic Latitude 6.19 deg
Rate 0.239 deg/day
Direction 72.272 deg

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