NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Apophis ∴ Orbital info ∴ Epoch 54958 MJD
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(99942) Apophis  ▹ 
ORBITAL INFORMATION
(ASCII data file 99942.eq0)
Keplerian elements at epoch
54958.4 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 71.23 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 -0.00063 au
Desc. node-Earth separation -0.1966 au
Earth MOID 0.00018 au
Orbital period 323.59 days
Date of orbit computation   May 25 11:16
Correlation matrix
1.00000000-0.848186300.78293835-0.844969540.823261440.57800913
-0.848186301.00000000-0.645823380.75108549-0.70759250-0.84628202
0.78293835-0.645823381.00000000-0.981096240.989264620.14433431
-0.844969540.75108549-0.981096241.00000000-0.99791861-0.30000915
0.82326144-0.707592500.98926462-0.997918611.000000000.23803307
0.57800913-0.846282020.14433431-0.300009150.238033071.00000000
Covariance matrix
1.57990447E-20-3.63881897E-193.24577008E-17-2.24260037E-152.13649883E-151.47634753E-16
-3.63881897E-191.16495075E-17-7.27013234E-165.41300688E-14-4.98639266E-14-5.86958494E-15
3.24577008E-17-7.27013234E-161.08780123E-13-6.83253412E-126.73653731E-129.67348238E-14
-2.24260037E-155.41300688E-14-6.83253412E-124.45852130E-10-4.35050843E-10-1.28726634E-11
2.13649883E-15-4.98639266E-146.73653731E-12-4.35050843E-104.26283911E-109.98677502E-12
1.47634753E-16-5.86958494E-159.67348238E-14-1.28726634E-119.98677502E-124.12930521E-12





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