NEODyS-2

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2021AB4  ▹ 
SUMMARY

This object is currently included in the Risk list

Keplerian elements
(Epoch 60400.0 MJD)
Value 1-σ variation Units
a 1.32003 0.0001435 au
e 0.290298 8.952e-05
i 2.992 0.00088 deg
Ω 287.617 0.0003806 deg
ω 140.996 0.001885 deg
M 67.402 0.1372 deg

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Other useful info
Absolute Magnitude (H)    26.8 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.9368 au
Aphelion distance 1.7032 au
Asc. node-Earth separation 0.54385 au
Desc. node-Earth separation 0.00374 au
Earth MOID 0.00126 au
Orbital period 553.955 days
Date of orbit computation   feb 26 11:59
Observational summary
Optical observations (Discarded) 98 (0)
Radar observations (Discarded) 0 (0)
Arc length 24 days
Unobserved 1180 days

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Ephemeris
(Epoch 60426 MJD)
Right Ascension 141.606 deg
Declination 9.22925 deg
V Magnitude 28.59 mag
Solar Elongation -105.02 deg
Galactic Latitude 38.53 deg
Rate 0.613 deg/day
Direction 103.937 deg

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