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(99942) Apophis  ▹ 
SUMMARY

This object is currently included in the Risk list

Keplerian elements
(Epoch 59000.0 MJD)
Value 1-σ variation Units
a 0.922571 1.753e-09 au
e 0.191475 3.781e-09
i 3.337 4.113e-07 deg
Ω 204.048 2.563e-05 deg
ω 126.687 2.505e-05 deg
M 248.148 6.152e-06 deg

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Non-gravitational parameters
Value 1-σ variation Units
A1 N/A N/A au/day2
A2 -2.916e-14 3.473e-15 au/day2
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 0.00031 au
Desc. node-Earth separation -0.19832 au
Earth MOID 9e-05 au
Orbital period 323.667 days
Date of orbit computation   Jan 24 18:34

Observational summary
Optical observations (Discarded) 4791 (4)
Radar observations (Discarded) 46 (0)
Arc length 6157 days
Unobserved 3 days

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Ephemeris
(Epoch 59239 MJD)
Right Ascension 174.686 deg
Declination -18.8198 deg
V Magnitude 17.29 mag
Solar Elongation 120.04 deg
Galactic Latitude 40.79 deg
Rate 0.265 deg/day
Direction -119.572 deg

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