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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 2.212e-10 au
e 0.19146 3.414e-09
i 3.337 3.34e-07 deg
Ω 204.053 2.107e-05 deg
ω 126.676 2.062e-05 deg
M 25.697 1.775e-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   Sep 19 18:13
Observational summary
Optical observations (Discarded) 4471 (30)
Radar observations (Discarded) 46 (0)
Arc length 5440 days
Unobserved 231 days

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Ephemeris
(Epoch 58750 MJD)
Right Ascension 222.437 deg
Declination -13.8019 deg
V Magnitude 20.76 mag
Solar Elongation -43.82 deg
Galactic Latitude 40.01 deg
Rate 1.054 deg/day
Direction 106.108 deg

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