NEODyS-2

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2021AB4  ▹ 
SUMMARY

This object is currently included in the Risk list

Keplerian elements
(Epoch 59800.0 MJD)
Value 1-σ variation Units
a 1.31954 0.000111 au
e 0.289954 6.754e-05
i 2.992 0.0006221 deg
Ω 287.637 0.0001106 deg
ω 140.969 0.0008168 deg
M 37.384 0.05047 deg

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Other useful info
Absolute Magnitude (H)    26.8 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.9369 au
Aphelion distance 1.7021 au
Asc. node-Earth separation 0.54304 au
Desc. node-Earth separation 0.00459 au
Earth MOID 0.00155 au
Orbital period 553.643 days
Date of orbit computation   set 26 21:11
Observational summary
Optical observations (Discarded) 98 (0)
Radar observations (Discarded) 0 (0)
Arc length 24 days
Unobserved 668 days

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Ephemeris
(Epoch 59914 MJD)
Right Ascension 219.602 deg
Declination -17.4686 deg
V Magnitude 30.52 mag
Solar Elongation 25.85 deg
Galactic Latitude 38.41 deg
Rate 0.644 deg/day
Direction 108.083 deg

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