NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Apophis ∴ Orbital info ∴ Epoch 57800 MJD
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(99942) Apophis  ▹ 
ORBITAL INFORMATION
(ASCII data file 99942.eq1)
Keplerian elements at epoch
57800.0 MJD
Value 1-σ variation Units
a 0.922609 2.257e-10 au
e 0.191513 3.751e-09
i 3.337 4.085e-07 deg
Ω 204.061 2.168e-05 deg
ω 126.692 2.107e-05 deg
M 353.414 2.755e-06 deg
Other useful info
Absolute Magnitude (H)    18.9 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7459 au
Aphelion 1.0993 au
Asc. node-Earth separation 0.00061 au
Desc. node-Earth separation -0.19804 au
Earth MOID 0.00018 au
Orbital period 323.687 days
Date of orbit computation   May 15 20:36
Correlation matrix
1.00000000-0.706456670.69386359-0.954603480.947643370.06282705
-0.706456671.00000000-0.430235480.65005142-0.59609418-0.52394330
0.69386359-0.430235481.00000000-0.671456870.72217014-0.52445555
-0.954603480.65005142-0.671456871.00000000-0.99508072-0.06549079
0.94764337-0.596094180.72217014-0.995080721.00000000-0.03336336
0.06282705-0.52394330-0.52445555-0.06549079-0.033363361.00000000
Covariance matrix
5.09282670E-20-5.97998238E-196.39713668E-17-4.67152467E-154.50506586E-153.90608338E-17
-5.97998238E-191.40692144E-17-6.59285050E-165.28735924E-14-4.71006144E-14-5.41420406E-15
6.39713668E-17-6.59285050E-161.66903007E-13-5.94848520E-126.21510360E-12-5.90277417E-13
-4.67152467E-155.28735924E-14-5.94848520E-124.70232205E-10-4.54560047E-10-3.91247711E-12
4.50506586E-15-4.71006144E-146.21510360E-12-4.54560047E-104.43765496E-10-1.93625241E-12
3.90608338E-17-5.41420406E-15-5.90277417E-13-3.91247711E-12-1.93625241E-127.58980830E-12





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