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AstDyS ∴ Objects ∴ 1997ST20 ∴ Summary
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(251719) 1997ST20  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.65272 1.713e-08 au
e 0.118334 4.604e-08
i 12.801 7.1e-06 deg
Ω 22.257 2.311e-05 deg
ω 81.21 3.953e-05 deg
M 343.489 3.245e-05 deg

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Other useful info
Absolute Magnitude (H)    16.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.3388 au
Aphelion 2.9666 au
Asc. node-Earth separation 1.57285 au
Desc. node-Earth separation 1.66124 au
Earth MOID 1.39621 au
Orbital period 1578.1 days
Date of orbit computation  apr 23 20:42
Observational summary
Optical observations (Discarded) 433 (3)
Radar observations (Discarded) 0 (0)
Arc length 9648.78 days
Unobserved 55 days

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Ephemeris at epoch 60425 MJD
Right Ascension 70.6611 deg
Declination 31.425 deg
V Magnitude 21.34 mag
Solar Elongation -39.32 deg
Galactic Latitude -9.61 deg
Rate 0.462 deg/day
Direction 82.786 deg

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