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AstDyS ∴ Objects ∴ 1997YA4 ∴ Summary
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(17723) 1997YA4  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.20375 5.386e-09 au
e 0.188222 3.513e-08
i 5.385 4.223e-06 deg
Ω 313.764 3.08e-05 deg
ω 39.253 3.228e-05 deg
M 111.787 1.08e-05 deg

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Other useful info
Absolute Magnitude (H)    15.0 mag
Slope parameter (G)    0.15 mag
Perihelion 1.789 au
Aphelion 2.6185 au
Asc. node-Earth separation 0.84115 au
Desc. node-Earth separation 1.50339 au
Earth MOID 0.78685 au
Orbital period 1194.93 days
Date of orbit computation  feb 22 01:53
Observational summary
Optical observations (Discarded) 1999 (11)
Radar observations (Discarded) 0 (0)
Arc length 11126.4 days
Unobserved 77 days

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Ephemeris at epoch 60419 MJD
Right Ascension 105.485 deg
Declination 23.2493 deg
V Magnitude 20 mag
Solar Elongation -75.1 deg
Galactic Latitude 12.56 deg
Rate 0.324 deg/day
Direction 100.467 deg

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