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(99942) Apophis  ▹ 
SUMMARY

This object is currently included in the Risk list

Keplerian elements
(Epoch 58800.0 MJD)
Value 1-σ variation Units
a 0.922533 2.793e-10 au
e 0.19146 4.018e-09
i 3.337 4.22e-07 deg
Ω 204.053 2.681e-05 deg
ω 126.676 2.62e-05 deg
M 25.697 1.846e-06 deg

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Other useful info
Absolute Magnitude (H)    18.9 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.7459 au
Aphelion distance 1.0992 au
Asc. node-Earth separation 0.00214 au
Desc. node-Earth separation -0.19887 au
Earth MOID 0.00062 au
Orbital period 323.647 days
Date of orbit computation   Oct 14 16:11
Observational summary
Optical observations (Discarded) 4471 (4)
Radar observations (Discarded) 46 (0)
Arc length 5440 days
Unobserved 256 days

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Ephemeris
(Epoch 58775 MJD)
Right Ascension 250.395 deg
Declination -19.7966 deg
V Magnitude 20.6 mag
Solar Elongation -46.59 deg
Galactic Latitude 17.16 deg
Rate 1.136 deg/day
Direction 98.807 deg

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