NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Apophis ∴ Orbital info ∴ Epoch 54959 MJD
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(99942) Apophis  ▹ 
ORBITAL INFORMATION
(ASCII data file 99942.eq0)
Keplerian elements at epoch
54959.1 MJD
Value 1-σ variation Units
a 0.922426 1.257e-10 au
e 0.191204 3.413e-09
i 3.331 3.298e-07 deg
Ω 204.444 2.112e-05 deg
ω 126.399 2.065e-05 deg
M 71.916 2.032e-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 -0.00061 au
Desc. node-Earth separation -0.19656 au
Earth MOID 0.00018 au
Orbital period 323.591 days
Date of orbit computation   Feb 6 15:23
Correlation matrix
1.00000000-0.848190270.78293913-0.844969690.823261810.57796903
-0.848190271.00000000-0.645830710.75109043-0.70759850-0.84625608
0.78293913-0.645830711.00000000-0.981096800.989264920.14429331
-0.844969690.75109043-0.981096801.00000000-0.99791867-0.29996760
0.82326181-0.707598500.98926492-0.997918671.000000000.23799164
0.57796903-0.846256080.14429331-0.299967600.237991641.00000000
Covariance matrix
1.57993432E-20-3.63890577E-193.24585112E-17-2.24265613E-152.13655234E-151.47620156E-16
-3.63890577E-191.16497342E-17-7.27039120E-165.41317760E-14-4.98655903E-14-5.86923352E-15
3.24585112E-17-7.27039120E-161.08783283E-13-6.83274131E-126.73673930E-129.67049851E-14
-2.24265613E-155.41317760E-14-6.83274131E-124.45865717E-10-4.35064093E-10-1.28705754E-11
2.13655234E-15-4.98655903E-146.73673930E-12-4.35064093E-104.26296828E-109.98479910E-12
1.47620156E-16-5.86923352E-159.67049851E-14-1.28705754E-119.98479910E-124.12898355E-12





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