Curve name  $X_{258}$  
Index  $48$  
Level  $8$  
Genus  $1$  
Does the subgroup contain $I$?  Yes  
Generating matrices  $ \left[ \begin{matrix} 1 & 1 \\ 2 & 7 \end{matrix}\right], \left[ \begin{matrix} 5 & 1 \\ 0 & 3 \end{matrix}\right], \left[ \begin{matrix} 5 & 0 \\ 0 & 5 \end{matrix}\right], \left[ \begin{matrix} 1 & 4 \\ 0 & 1 \end{matrix}\right]$  
Images in lower levels 


Meaning/Special name  
Chosen covering  $X_{69}$  
Curves that $X_{258}$ minimally covers  $X_{69}$, $X_{71}$, $X_{76}$, $X_{77}$, $X_{125}$, $X_{127}$, $X_{130}$  
Curves that minimally cover $X_{258}$  $X_{542}$  
Curves that minimally cover $X_{258}$ and have infinitely many rational points.  
Model  A model was not computed. This curve is covered by $X_{54}$, which only has finitely many rational points.  
Info about rational points  
Comments on finding rational points  None  
Elliptic curve whose $2$adic image is the subgroup  None  
Generic density of odd order reductions  N/A 