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AstDyS ∴ Objects ∴ 1981ER4 ∴ Proper elements
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(20975) 1981ER4  ▹ 
PROPER ELEMENTS
Proper elements
Analytic
Value Units
a 2.94516 au
e 0.1159
sin(i) 0.1861
g 64.664 sec/yr
s -69.982 sec/yr
RFL 0
QCM 0
Synthetic
Value RMS Units
a 2.94512 4.60E-7 au
e 0.117196 2.40E-5
sin(i) 0.185979 2.52E-5
n 71.2084 2.80E-5 deg/yr
g 65.1164 8.62E-3 sec/yr
s -70.0813 5.53E-3 sec/yr
Chaos
Value Units
LCE 0.06 1/Myr
ITS -2 Myr
Family
Value
Status Background asteroid