NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Apophis ∴ Summary
Contact »
(99942) Apophis  ▹ 
SUMMARY

WARNING: This object is currently included in the Risk list

Keplerian elements at epoch
57200.0 MJD
Value 1-σ variation Units
a 0.922117 1.27e-10 au
e 0.191215 2.885e-09
i 3.331 2.795e-07 deg
Ω 204.203 1.479e-05 deg
ω 126.457 1.445e-05 deg
M 45.933 2.262e-06 deg

More info »
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 -0.00084 au
Desc. node-Earth separation -0.19775 au
Earth MOID 0.00025 au
Orbital period 323.428 days
Date of orbit computation   Apr 8 17:25
Observational summary
Optical observations (Discarded) 4168 (24)
Radar observations (Discarded) 20 (0)
Arc length 3946 days
Unobserved 238 days

More info »
Ephemeris at epoch 57263 MJD
Right Ascension 131.464 deg
Declination 16.1029 deg
V Magnitude 21.42 mag
Solar Elongation 25.68 deg
Galactic Latitude 32.4 deg
Rate 0.89 deg/day
Direction 105.795 deg

More info »





This Web Site has been visited 198155 times since

and this Page has been visited 46607 times since 2011/04/20