Approximately,
\[
\begin{alignedat}{4}
A^\prime_{\mathbf{1b}}&{}\approx{}&1.000000000000&{}:{}&-0.098076211353&{}:{}&0.098076211353&,\\B^\prime_{\mathbf{1b}}&{}\approx{}&0.455341801261&{}:{}&0.089316397477&{}:{}&0.455341801261&,\\C^\prime_{\mathbf{1b}}&{}\approx{}&4.098076211353&{}:{}&-4.098076211353&{}:{}&1.000000000000&,
\\
A^{\prime\prime}_{\mathbf{1b}}&{}\approx{}&0.819615242271&{}:{}&-0.329422863406&{}:{}&0.509807621135&,\\B^{\prime\prime}_{\mathbf{1b}}&{}\approx{}&1.072410996238&{}:{}&-0.191567773597&{}:{}&0.119156777360&,\\C^{\prime\prime}_{\mathbf{1b}}&{}\approx{}&0.903476194491&{}:{}&-0.064866672287&{}:{}&0.161390477796&,
\\
A^{\prime\prime\prime}_{\mathbf{1b}}&{}\approx{}&0.694362780359&{}:{}&0.136200941605&{}:{}&0.169436278036&,\\B^{\prime\prime\prime}_{\mathbf{1b}}&{}\approx{}&1.080081515006&{}:{}&-0.105930302945&{}:{}&0.025848787939&,\\C^{\prime\prime\prime}_{\mathbf{1b}}&{}\approx{}&0.895003474807&{}:{}&0.017217975236&{}:{}&0.087778549957&,
\\
A^*_{\mathbf{1b}}&{}\approx{}&0.000000000000&{}:{}&-0.866025403784&{}:{}&1.866025403784&,\\B^*_{\mathbf{1b}}&{}\approx{}&1.500000000000&{}:{}&0.000000000000&{}:{}&-0.500000000000&,\\C^*_{\mathbf{1b}}&{}\approx{}&0.866025403784&{}:{}&0.133974596216&{}:{}&0.000000000000&.
\end{alignedat}
\]