AstDyS-2

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AstDyS ∴ Objects ∴ 1998SD21 ∴ Summary
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(120897) 1998SD21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.12519 2.079e-08 au
e 0.162029 3.594e-08
i 3.267 5.205e-06 deg
Ω 12.348 6.731e-05 deg
ω 71.719 6.96e-05 deg
M 161.77 1.716e-05 deg

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Other useful info
Absolute Magnitude (H)    15.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.6188 au
Aphelion 3.6316 au
Asc. node-Earth separation 1.89688 au
Desc. node-Earth separation 2.20638 au
Earth MOID 1.63761 au
Orbital period 2017.96 days
Date of orbit computation  apr 23 20:13
Observational summary
Optical observations (Discarded) 973 (3)
Radar observations (Discarded) 0 (0)
Arc length 8986.2 days
Unobserved 360 days

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Ephemeris at epoch 60425 MJD
Right Ascension 266.117 deg
Declination -26.9707 deg
V Magnitude 21.1 mag
Solar Elongation 128.33 deg
Galactic Latitude 1.24 deg
Rate 0.051 deg/day
Direction -110.324 deg

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