NEODyS-2

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NEODyS ∴ Objects ∴ Apophis ∴ Orbital info ∴ Epoch 57676 MJD
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(99942) Apophis  ▹ 
ORBITAL INFORMATION
(ASCII data file 99942.eq0)
Keplerian elements
(Epoch 57676.1 MJD)
Value 1-σ variation Units
a 0.922629 6.695e-11 au
e 0.191521 1.545e-09
i 3.337 1.738e-07 deg
Ω 204.061 8.702e-06 deg
ω 126.684 9.298e-06 deg
M 215.644 1.387e-06 deg
Non-gravitational parameters
Value 1-σ variation Units
A1 N/A N/A au/day2
A2 -2.900e-14 2.462e-16 au/day2
Other useful info
Absolute Magnitude (H)    18.9 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.7459 au
Aphelion distance 1.0993 au
Asc. node-Earth separation 0.00239 au
Desc. node-Earth separation -0.19889 au
Earth MOID 0.0007 au
Orbital period 323.698 days
Date of orbit computation   apr 20 15:45

Covariance matrix
4.48264482E-21-7.89141735E-203.13116419E-18-2.59896416E-162.27250577E-163.01842797E-173.54756913E-17
-7.89141735E-202.38728862E-188.06699132E-17-2.12901742E-153.55502912E-15-1.74854827E-15-4.46959407E-15
3.13116419E-188.06699132E-173.01933635E-14-1.44427117E-121.56816924E-12-1.90628577E-13-2.93269564E-13
-2.59896416E-16-2.12901742E-15-1.44427117E-127.57206963E-11-8.05522700E-117.98222160E-12-2.63695036E-13
2.27250577E-163.55502912E-151.56816924E-12-8.05522700E-118.64574068E-11-9.40059720E-122.67578330E-13
3.01842797E-17-1.74854827E-15-1.90628577E-137.98222160E-12-9.40059720E-121.92430046E-127.56328674E-13
3.54756913E-17-4.46959407E-15-2.93269564E-13-2.63695036E-132.67578330E-137.56328674E-136.06089396E-12

Correlation matrix
1.00000000-0.762843380.26914290-0.446093430.365036870.324995400.21522631
-0.762843381.000000000.30047156-0.158350500.24745122-0.81580943-1.17502546
0.269142900.300471561.00000000-0.955181040.97059060-0.79085309-0.68555595
-0.44609343-0.15835050-0.955181041.00000000-0.995564450.66127186-0.01230910
0.365036870.247451220.97059060-0.995564451.00000000-0.728816000.01168911
0.32499540-0.81580943-0.790853090.66127186-0.728816001.000000000.22146535
0.21522631-1.17502546-0.68555595-0.012309100.011689110.221465351.00000000