NEODyS-2
Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 2021ER4 ∴ Orbital info ∴ Epoch 59288 MJD
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2021ER4  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 2021ER4.eq0)
Keplerian elements
(Epoch 59288.7 MJD)
Value 1-σ variation Units
a 0.863443 2.138e-05 au
e 0.459789 0.0003103
i 1.958 0.001949 deg
Ω 354.003 0.0008152 deg
ω 43.385 0.003787 deg
M 89.48 0.03539 deg
Other useful info
Absolute Magnitude (H)    27.2 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.4664 au
Aphelion distance 1.2604 au
Asc. node-Earth separation -0.49636 au
Desc. node-Earth separation 0.02827 au
Earth MOID 0.00203 au
Orbital period 293.055 days
Date of orbit computation   feb 26 12:08

Covariance matrix
4.57235817E-104.20136007E-093.14132182E-08-1.40196388E-08-2.00432371E-08-5.20139492E-07
4.20136007E-099.62669015E-085.95180169E-07-2.44854609E-07-1.06495061E-06-1.09530221E-05
3.14132182E-085.95180169E-073.80052414E-06-1.58176677E-06-6.06138838E-06-6.85498783E-05
-1.40196388E-08-2.44854609E-07-1.58176677E-066.64546931E-072.38820954E-062.83686897E-05
-2.00432371E-08-1.06495061E-06-6.06138838E-062.38820954E-061.43399034E-051.17091786E-04
-5.20139492E-07-1.09530221E-05-6.85498783E-052.83686897E-051.17091786E-041.25270271E-03

Correlation matrix
1.000000000.633258870.75356473-0.80427371-0.24752817-0.68726733
0.633258871.000000000.98398439-0.96807044-0.90639574-0.99740482
0.753564730.983984391.00000000-0.99530886-0.82106446-0.99348413
-0.80427371-0.96807044-0.995308861.000000000.773635670.98322393
-0.24752817-0.90639574-0.821064460.773635671.000000000.87363356
-0.68726733-0.99740482-0.993484130.983223930.873633561.00000000