NEODyS-2
Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 2021ER4 ∴ Orbital info ∴ Epoch 60600 MJD
Contact »
2021ER4  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 2021ER4.eq1)
Keplerian elements
(Epoch 60600.0 MJD)
Value 1-σ variation Units
a 0.863459 2.021e-05 au
e 0.459678 0.0003108
i 1.957 0.001951 deg
Ω 353.977 0.001036 deg
ω 43.44 0.003538 deg
M 260.32 0.08521 deg
Other useful info
Absolute Magnitude (H)    27.2 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.4665 au
Aphelion distance 1.2604 au
Asc. node-Earth separation -0.49456 au
Desc. node-Earth separation 0.0299 au
Earth MOID 0.00215 au
Orbital period 293.063 days
Date of orbit computation   Jul 29 12:54

Covariance matrix
4.08452597E-103.75540252E-092.85224037E-08-1.61765563E-08-1.11197702E-08-1.63003271E-06
3.75540252E-099.65992265E-085.96527146E-07-3.12223332E-07-9.72819606E-07-2.18340259E-05
2.85224037E-085.96527146E-073.80481388E-06-2.01185927E-06-5.46710493E-06-1.50696621E-04
-1.61765563E-08-3.12223332E-07-2.01185927E-061.07248333E-062.73471302E-068.25887032E-05
-1.11197702E-08-9.72819606E-07-5.46710493E-062.73471302E-061.25206258E-051.40400497E-04
-1.63003271E-06-2.18340259E-05-1.50696621E-048.25887032E-051.40400497E-047.26038832E-03

Correlation matrix
1.000000000.597859090.72351674-0.77289406-0.15549340-0.94655437
0.597859091.000000000.98395827-0.97002573-0.88457054-0.82445522
0.723516740.983958271.00000000-0.99594559-0.79209575-0.90668594
-0.77289406-0.97002573-0.995945591.000000000.746282860.93593448
-0.15549340-0.88457054-0.792095750.746282861.000000000.46566726
-0.94655437-0.82445522-0.906685940.935934480.465667261.00000000