NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ Apophis ∴ Orbital info ∴ Epoch 58200 MJD
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(99942) Apophis  ▹ 
ORBITAL INFORMATION
(ASCII data file 99942.eq1)
Keplerian elements at epoch
58200.0 MJD
Value 1-σ variation Units
a 0.922587 1.471e-10 au
e 0.191472 2.651e-09
i 3.337 2.216e-07 deg
Ω 204.059 1.369e-05 deg
ω 126.691 1.346e-05 deg
M 78.289 1.616e-06 deg
Other useful info
Absolute Magnitude (H)    18.9 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7459 au
Aphelion 1.0992 au
Asc. node-Earth separation 0.00069 au
Desc. node-Earth separation -0.1997 au
Earth MOID 0.0002 au
Orbital period 323.675 days
Date of orbit computation   Feb 5 17:38
Correlation matrix
1.00000000-0.625017860.86316923-0.915333370.90348138-0.08679929
-0.625017861.00000000-0.426238060.59692958-0.52154905-0.69055306
0.86316923-0.426238061.00000000-0.962250980.97814890-0.34575307
-0.915333370.59692958-0.962250981.00000000-0.995726920.13683442
0.90348138-0.521549050.97814890-0.995726921.00000000-0.22708096
-0.08679929-0.69055306-0.345753070.13683442-0.227080961.00000000
Covariance matrix
2.16381956E-20-2.43753313E-192.81397499E-17-1.84320897E-151.78939084E-15-2.06392612E-17
-2.43753313E-197.02902602E-18-2.50445688E-162.16648377E-14-1.86173651E-14-2.95945750E-15
2.81397499E-17-2.50445688E-164.91165120E-14-2.91935482E-122.91873194E-12-1.23864621E-13
-1.84320897E-152.16648377E-14-2.91935482E-121.87399972E-10-1.83527222E-103.02794223E-12
1.78939084E-15-1.86173651E-142.91873194E-12-1.83527222E-101.81280447E-10-4.94223836E-12
-2.06392612E-17-2.95945750E-15-1.23864621E-133.02794223E-12-4.94223836E-122.61297320E-12





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