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 1.305e-10 au
e 0.191204 3.742e-09
i 3.331 4.07e-07 deg
Ω 204.444 2.172e-05 deg
ω 126.399 2.108e-05 deg
M 69.934 3.107e-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   May 15 20:36
Correlation matrix
1.00000000-0.843012150.52798528-0.803586010.771299800.53539698
-0.843012151.00000000-0.427188330.65402433-0.60024295-0.69485429
0.52798528-0.427188331.00000000-0.663492380.71502153-0.31724528
-0.803586010.65402433-0.663492381.00000000-0.99505551-0.29509781
0.77129980-0.600242950.71502153-0.995055511.000000000.19889192
0.53539698-0.69485429-0.31724528-0.295097810.198891921.00000000
Covariance matrix
1.70314476E-20-4.11709818E-192.80431782E-17-2.27774927E-152.12215210E-152.17106680E-16
-4.11709818E-191.40043585E-17-6.50624825E-165.31585688E-14-4.73572184E-14-8.07972982E-15
2.80431782E-17-6.50624825E-161.65637732E-13-5.86493695E-126.13516527E-12-4.01186487E-13
-2.27774927E-155.31585688E-14-5.86493695E-124.71732214E-10-4.55640776E-10-1.99152262E-11
2.12215210E-15-4.73572184E-146.13516527E-12-4.55640776E-104.44482856E-101.30291516E-11
2.17106680E-16-8.07972982E-15-4.01186487E-13-1.99152262E-111.30291516E-119.65479308E-12





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