Group table for the character group for $\textrm{Gal}(K/\mathbb{Q})$

$K$ is the global number field defined by \( x^{2} - 255 \)

$\times$ \(\chi_{ 1020 } ( 1, ·)\) \(\chi_{ 1020 } ( 1019, ·)\)
\(\chi_{ 1020 }(1, ·)\) \(\chi_{ 1020 } ( 1, ·)\) \(\chi_{ 1020 } ( 1019, ·)\)
\(\chi_{ 1020 }(1019, ·)\) \(\chi_{ 1020 } ( 1019, ·)\) \(\chi_{ 1020 } ( 1, ·)\)