Approximately,
\[
\begin{alignedat}{4}
A^\prime_{\mathbf{6a}}&{}\approx{}&1.099456183690&{}:{}&-0.041196100146&{}:{}&-0.058260083544&,\\B^\prime_{\mathbf{6a}}&{}\approx{}&6.068535592272&{}:{}&3.513669746063&{}:{}&-8.582205338335&,\\C^\prime_{\mathbf{6a}}&{}\approx{}&0.748302881333&{}:{}&-0.748302881333&{}:{}&1.000000000000&,
\\
A^{\prime\prime}_{\mathbf{6a}}&{}\approx{}&1.332319281658&{}:{}&-0.280454565784&{}:{}&-0.051864715874&,\\B^{\prime\prime}_{\mathbf{6a}}&{}\approx{}&1.081132985117&{}:{}&-0.078092970763&{}:{}&-0.003040014354&,\\C^{\prime\prime}_{\mathbf{6a}}&{}\approx{}&1.132961205392&{}:{}&-0.017226699069&{}:{}&-0.115734506323&,
\\
A^{\prime\prime\prime}_{\mathbf{6a}}&{}\approx{}&0.343011371888&{}:{}&0.198602885594&{}:{}&0.458385742518&,\\B^{\prime\prime\prime}_{\mathbf{6a}}&{}\approx{}&0.987553715251&{}:{}&-0.037003167890&{}:{}&0.049449452639&,\\C^{\prime\prime\prime}_{\mathbf{6a}}&{}\approx{}&1.032306156571&{}:{}&0.022395653121&{}:{}&-0.054701809692&,
\\
A^*_{\mathbf{6a}}&{}\approx{}&0.000000000000&{}:{}&1.382683432365&{}:{}&-0.382683432365&,\\B^*_{\mathbf{6a}}&{}\approx{}&0.923879532511&{}:{}&0.000000000000&{}:{}&0.076120467489&,\\C^*_{\mathbf{6a}}&{}\approx{}&1.423879532511&{}:{}&-0.423879532511&{}:{}&0.000000000000&.
\end{alignedat}
\]