NEODyS-2

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NEODyS ∴ Objects ∴ Apophis ∴ Summary
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(99942) Apophis  ▹ 
SUMMARY

WARNING: This object is currently included in the Risk list

Keplerian elements at epoch
57000.0 MJD
Value 1-σ variation Units
a 0.922121 1.271e-10 au
e 0.191185 2.885e-09
i 3.331 2.796e-07 deg
Ω 204.205 1.479e-05 deg
ω 126.456 1.446e-05 deg
M 183.315 2.281e-06 deg

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Other useful info
Absolute Magnitude (H)    18.9 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7458 au
Aphelion 1.0984 au
Asc. node-Earth separation 0.0004 au
Desc. node-Earth separation -0.19824 au
Earth MOID 0.00011 au
Orbital period 323.43 days
Date of orbit computation   Sep 15 22:11
Observational summary
Optical observations (Discarded) 4162 (25)
Radar observations (Discarded) 20 (0)
Arc length 3636 days
Unobserved 201 days

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Ephemeris at epoch 56916 MJD
Right Ascension 130.801 deg
Declination 16.1454 deg
V Magnitude 21.26 mag
Solar Elongation 43.99 deg
Galactic Latitude 31.83 deg
Rate 0.89 deg/day
Direction 106.682 deg

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