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(21558) Alisonliu  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.67438 8.936e-09 au
e 0.163293 2.72e-08
i 11.962 3.079e-06 deg
Ω 323.397 1.59e-05 deg
ω 288.024 1.862e-05 deg
M 30.948 1.038e-05 deg

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Other useful info
Absolute Magnitude (H)    12.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2377 au
Aphelion 3.1111 au
Asc. node-Earth separation 1.46568 au
Desc. node-Earth separation 1.75469 au
Earth MOID 1.25735 au
Orbital period 1597.47 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 3666 (38)
Radar observations (Discarded) 0 (0)
Arc length 11521.6 days
Unobserved 244 days

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Ephemeris at epoch 60425 MJD
Right Ascension 329.072 deg
Declination -17.0517 deg
V Magnitude 17.78 mag
Solar Elongation 69.69 deg
Galactic Latitude -48.41 deg
Rate 0.371 deg/day
Direction 64.974 deg

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