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AstDyS ∴ Objects ∴ 1998TK21 ∴ Summary
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(228239) 1998TK21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 5.14852 1.139e-07 au
e 0.128706 6.237e-08
i 4.373 7.243e-06 deg
Ω 225.952 8.703e-05 deg
ω 251.627 9.284e-05 deg
M 351.825 3.496e-05 deg

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Other useful info
Absolute Magnitude (H)    13.4 mag
Slope parameter (G)    0.15 mag
Perihelion 4.4859 au
Aphelion 5.8112 au
Asc. node-Earth separation 4.26881 au
Desc. node-Earth separation 3.87549 au
Earth MOID 3.50589 au
Orbital period 4266.99 days
Date of orbit computation  feb 22 02:38
Observational summary
Optical observations (Discarded) 372 (3)
Radar observations (Discarded) 0 (0)
Arc length 8931.76 days
Unobserved 365 days

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Ephemeris at epoch 60398 MJD
Right Ascension 94.0264 deg
Declination 19.5452 deg
V Magnitude 20.68 mag
Solar Elongation -85.36 deg
Galactic Latitude 1.36 deg
Rate 0.122 deg/day
Direction 87.365 deg

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