NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Apophis ∴ Orbital info ∴ Epoch 58000 MJD
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(99942) Apophis  ▹ 
ORBITAL INFORMATION
(ASCII data file 99942.eq1)
Keplerian elements at epoch
58000.0 MJD
Value 1-σ variation Units
a 0.922617 1.501e-10 au
e 0.191506 2.972e-09
i 3.337 2.87e-07 deg
Ω 204.06 1.447e-05 deg
ω 126.687 1.408e-05 deg
M 215.856 2.242e-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 0.00193 au
Desc. node-Earth separation -0.19864 au
Earth MOID 0.00056 au
Orbital period 323.691 days
Date of orbit computation   Oct 9 22:47
Correlation matrix
1.00000000-0.537250780.56263957-0.901288570.890069880.04403664
-0.537250781.00000000-0.307150470.44327875-0.36537170-0.59671738
0.56263957-0.307150471.00000000-0.521846460.58423337-0.55411948
-0.901288570.44327875-0.521846461.00000000-0.99261724-0.05449212
0.89006988-0.365371700.58423337-0.992617241.00000000-0.06636255
0.04403664-0.59671738-0.55411948-0.05449212-0.066362551.00000000
Covariance matrix
2.25319776E-20-2.39649373E-192.42367714E-17-1.95761976E-151.88094563E-151.48191634E-17
-2.39649373E-198.83078224E-18-2.61936248E-161.90608086E-14-1.52857579E-14-3.97537534E-15
2.42367714E-17-2.61936248E-168.23549434E-14-2.16696751E-122.36038954E-12-3.56498837E-13
-1.95761976E-151.90608086E-14-2.16696751E-122.09377323E-10-2.02208365E-10-1.76769939E-12
1.88094563E-15-1.52857579E-142.36038954E-12-2.02208365E-101.98200600E-10-2.09452427E-12
1.48191634E-17-3.97537534E-15-3.56498837E-13-1.76769939E-12-2.09452427E-125.02596810E-12





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