NEODyS-2
Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 2018ER4 ∴ Orbital info ∴ Epoch 60600 MJD
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2018ER4  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 2018ER4.eq1)
Keplerian elements
(Epoch 60600.0 MJD)
Value 1-σ variation Units
a 1.90245 0.0001098 au
e 0.464995 3.205e-05
i 2.324 0.0001225 deg
Ω 0.001 0.0004944 deg
ω 220.589 0.0003979 deg
M 164.469 0.07759 deg
Other useful info
Absolute Magnitude (H)    22.2 mag
Slope parameter (G)    0.15 mag
Perihelion distance 1.0178 au
Aphelion distance 2.7871 au
Asc. node-Earth separation 1.30191 au
Desc. node-Earth separation 0.10773 au
Earth MOID 0.02804 au
Orbital period 958.444 days
Date of orbit computation   Jul 29 12:09

Covariance matrix
1.20512114E-083.51788581E-091.34296366E-08-5.22838655E-084.10405009E-08-8.51712972E-06
3.51788581E-091.02691213E-093.92018713E-09-1.52622714E-081.19804599E-08-2.48624720E-06
1.34296366E-083.92018713E-091.50119721E-08-5.79403334E-084.53876624E-08-9.49132272E-06
-5.22838655E-08-1.52622714E-08-5.79403334E-082.44426380E-07-1.95891329E-073.69514705E-05
4.10405009E-081.19804599E-084.53876624E-08-1.95891329E-071.58358289E-07-2.90054508E-05
-8.51712972E-06-2.48624720E-06-9.49132272E-063.69514705E-05-2.90054508E-056.01943632E-03

Correlation matrix
1.000000000.999999410.99845854-0.963337130.93945699-0.99999999
0.999999411.000000000.99843841-0.963337560.93947763-0.99999943
0.998458540.998438411.00000000-0.956506830.93089038-0.99845835
-0.96333713-0.96333756-0.956506831.00000000-0.995682270.96334040
0.939456990.939477630.93089038-0.995682271.00000000-0.93946652
-0.99999999-0.99999943-0.998458350.96334040-0.939466521.00000000