NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Apophis ∴ Orbital info ∴ Epoch 54957 MJD
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(99942) Apophis  ▹ 
ORBITAL INFORMATION
(ASCII data file 99942.eq0)
Keplerian elements at epoch
54957.3 MJD
Value 1-σ variation Units
a 0.922426 1.304e-10 au
e 0.191204 3.741e-09
i 3.331 4.068e-07 deg
Ω 204.444 2.171e-05 deg
ω 126.399 2.107e-05 deg
M 69.934 3.106e-06 deg
Other useful info
Absolute Magnitude (H)    18.9 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7461 au
Aphelion 1.0988 au
Asc. node-Earth separation -0.00066 au
Desc. node-Earth separation -0.19677 au
Earth MOID 0.00019 au
Orbital period 323.59 days
Date of orbit computation   Oct 1 22:21
Correlation matrix
1.00000000-0.842883130.52773247-0.803378120.771071130.53533510
-0.842883131.00000000-0.426969910.65374980-0.59993777-0.69482152
0.52773247-0.426969911.00000000-0.663275130.71483048-0.31750059
-0.803378120.65374980-0.663275131.00000000-0.99505198-0.29495045
0.77107113-0.599937770.71483048-0.995051981.000000000.19870605
0.53533510-0.69482152-0.31750059-0.294950450.198706051.00000000
Covariance matrix
1.70122365E-20-4.11246346E-192.80021648E-17-2.27452364E-152.11908255E-152.16898707E-16
-4.11246346E-191.39929078E-17-6.49753067E-165.30829813E-14-4.72860370E-14-8.07379618E-15
2.80021648E-17-6.49753067E-161.65498539E-13-5.85707181E-126.12735259E-12-4.01228847E-13
-2.27452364E-155.30829813E-14-5.85707181E-124.71172028E-10-4.55101476E-10-1.98879191E-11
2.11908255E-15-4.72860370E-146.12735259E-12-4.55101476E-104.43961646E-101.30057185E-11
2.16898707E-16-8.07379618E-15-4.01228847E-13-1.98879191E-111.30057185E-119.64941689E-12





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