AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Silesia ∴ Summary
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(257) Silesia  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 3.12706 1.285e-08 au
e 0.110365 3.396e-08
i 3.626 4.06e-06 deg
Ω 34.354 6.029e-05 deg
ω 29.138 6.334e-05 deg
M 171.904 1.82e-05 deg

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Other useful info
Absolute Magnitude (H)    9.5 mag
Slope parameter (G)    0.15 mag
Perihelion 2.7819 au
Aphelion 3.4722 au
Asc. node-Earth separation 1.82369 au
Desc. node-Earth separation 2.41078 au
Earth MOID 1.795 au
Orbital period 2019.77 days
Date of orbit computation  Oct 31 04:54
Observational summary
Optical observations (Discarded) 2808 (96)
Radar observations (Discarded) 0 (0)
Arc length 48360.2 days
Unobserved 201 days

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Ephemeris at epoch 58564 MJD
Right Ascension 278 deg
Declination -25.8812 deg
V Magnitude 15.72 mag
Solar Elongation 83.62 deg
Galactic Latitude -7.54 deg
Rate 0.18 deg/day
Direction 92.472 deg

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