NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Apophis ∴ Orbital info ∴ Epoch 58400 MJD
Contact »
(99942) Apophis  ▹ 
ORBITAL INFORMATION
(ASCII data file 99942.eq1)
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 0.922559 2.244e-10 au
e 0.191457 3.747e-09
i 3.337 4.083e-07 deg
Ω 204.056 2.167e-05 deg
ω 126.679 2.105e-05 deg
M 300.761 2.749e-06 deg
Other useful info
Absolute Magnitude (H)    18.9 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7459 au
Aphelion 1.0992 au
Asc. node-Earth separation -0.00133 au
Desc. node-Earth separation -0.19898 au
Earth MOID 0.00039 au
Orbital period 323.66 days
Date of orbit computation   Oct 1 22:21
Correlation matrix
1.00000000-0.713773000.68526006-0.954459210.94604568-0.01123463
-0.713773001.00000000-0.431112560.65025066-0.59634135-0.46107597
0.68526006-0.431112561.00000000-0.671175070.72193424-0.58703405
-0.954459210.65025066-0.671175071.00000000-0.995073190.01913610
0.94604568-0.596341350.72193424-0.995073191.00000000-0.11760945
-0.01123463-0.46107597-0.587034050.01913610-0.117609451.00000000
Covariance matrix
5.03706448E-20-6.00262491E-196.27992880E-17-4.64240440E-154.47008658E-15-6.93230802E-18
-6.00262491E-191.40405676E-17-6.59619602E-165.28043835E-14-4.70437926E-14-4.75001751E-15
6.27992880E-17-6.59619602E-161.66732817E-13-5.93940856E-126.20616413E-12-6.59028543E-13
-4.64240440E-155.28043835E-14-5.93940856E-124.69670931E-10-4.54011590E-101.14019900E-12
4.47008658E-15-4.70437926E-146.20616413E-12-4.54011590E-104.43231019E-10-6.80750066E-12
-6.93230802E-18-4.75001751E-15-6.59028543E-131.14019900E-12-6.80750066E-127.55893783E-12





This Web Site has been visited 510056 times since

and this Page has been visited 91585 times since 2011/04/20