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AstDyS ∴ Objects ∴ 1998YN21 ∴ Summary
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(251750) 1998YN21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.60129 1.57e-08 au
e 0.080466 6.269e-08
i 6.23 5.26e-06 deg
Ω 117.236 4.629e-05 deg
ω 58.364 5.538e-05 deg
M 313.289 3.127e-05 deg

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Other useful info
Absolute Magnitude (H)    16.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.392 au
Aphelion 2.8106 au
Asc. node-Earth separation 1.49664 au
Desc. node-Earth separation 1.68217 au
Earth MOID 1.40442 au
Orbital period 1532.43 days
Date of orbit computation  apr 23 20:42
Observational summary
Optical observations (Discarded) 408 (0)
Radar observations (Discarded) 0 (0)
Arc length 9171.69 days
Unobserved 80 days

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Ephemeris at epoch 60427 MJD
Right Ascension 107.629 deg
Declination 23.6214 deg
V Magnitude 21.89 mag
Solar Elongation -69.22 deg
Galactic Latitude 14.51 deg
Rate 0.349 deg/day
Direction 93.473 deg

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