NEODyS-2

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2021AB4  ▹ 
SUMMARY

This object is currently included in the Risk list

Keplerian elements
(Epoch 59000.0 MJD)
Value 1-σ variation Units
a 1.3397 0.0001771 au
e 0.298487 0.0001072
i 2.826 0.001191 deg
Ω 287.935 0.0001602 deg
ω 142.568 0.003126 deg
M 238.889 0.0247 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 1.7396 au
Asc. node-Earth separation 0.58278 au
Desc. node-Earth separation 0.00342 au
Earth MOID 0.00111 au
Orbital period 566.383 days
Date of orbit computation   Jan 18 14:14
Observational summary
Optical observations (Discarded) 86 (0)
Radar observations (Discarded) 0 (0)
Arc length 8 days
Unobserved 2 days

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Ephemeris
(Epoch 59234 MJD)
Right Ascension 140.571 deg
Declination -0.33571 deg
V Magnitude 21.47 mag
Solar Elongation 152.61 deg
Galactic Latitude 32.8 deg
Rate 0.439 deg/day
Direction -86.375 deg

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