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AstDyS ∴ Objects ∴ Joannehsieh ∴ Summary
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(17988) Joannehsieh  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.37885 9.15e-09 au
e 0.073023 4.316e-08
i 6.015 5.129e-06 deg
Ω 180.952 3.576e-05 deg
ω 46.49 4.737e-05 deg
M 116.103 3.037e-05 deg

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Other useful info
Absolute Magnitude (H)    14.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2051 au
Aphelion 2.5526 au
Asc. node-Earth separation 1.25486 au
Desc. node-Earth separation 1.48816 au
Earth MOID 1.19951 au
Orbital period 1340.13 days
Date of orbit computation  Oct 31 05:07
Observational summary
Optical observations (Discarded) 1562 (15)
Radar observations (Discarded) 0 (0)
Arc length 10604.2 days
Unobserved 99 days

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Ephemeris at epoch 58506 MJD
Right Ascension 358.47 deg
Declination -2.16524 deg
V Magnitude 19.88 mag
Solar Elongation -55.33 deg
Galactic Latitude -61.48 deg
Rate 0.386 deg/day
Direction 68.852 deg

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