NEODyS-2

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2021AB4  ▹ 
SUMMARY

This object is currently included in the Risk list

Keplerian elements
(Epoch 59200.0 MJD)
Value 1-σ variation Units
a 1.34039 0.000175 au
e 0.29889 0.0001059
i 2.827 0.001178 deg
Ω 287.893 0.0001166 deg
ω 142.595 0.003106 deg
M 6.017 0.0005564 deg

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Other useful info
Absolute Magnitude (H)    26.9 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.9398 au
Aphelion distance 1.741 au
Asc. node-Earth separation 0.58217 au
Desc. node-Earth separation 0.00318 au
Earth MOID 0.00103 au
Orbital period 566.823 days
Date of orbit computation   Mar 19 10:55
Observational summary
Optical observations (Discarded) 89 (0)
Radar observations (Discarded) 0 (0)
Arc length 8 days
Unobserved 156 days

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Ephemeris
(Epoch 59388 MJD)
Right Ascension 178.083 deg
Declination -2.98626 deg
V Magnitude 30 mag
Solar Elongation -87.96 deg
Galactic Latitude 56.68 deg
Rate 0.494 deg/day
Direction 109.368 deg

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