Approximately,
\[
\begin{alignedat}{4}
A^\prime_{\mathbf{6a}}&{}\approx{}&1.018099870087&{}:{}&-0.006355829153&{}:{}&-0.011744040934&,\\B^\prime_{\mathbf{6a}}&{}\approx{}&16.559681942832&{}:{}&15.038620480927&{}:{}&-30.598302423759&,\\C^\prime_{\mathbf{6a}}&{}\approx{}&0.550039664287&{}:{}&-0.550039664287&{}:{}&1.000000000000&,
\\
A^{\prime\prime}_{\mathbf{6a}}&{}\approx{}&1.064714214022&{}:{}&-0.048898757974&{}:{}&-0.015815456048&,\\B^{\prime\prime}_{\mathbf{6a}}&{}\approx{}&1.012753114521&{}:{}&-0.012566450214&{}:{}&-0.000186664307&,\\C^{\prime\prime}_{\mathbf{6a}}&{}\approx{}&1.024062650191&{}:{}&-0.000583579907&{}:{}&-0.023479070284&,
\\
A^{\prime\prime\prime}_{\mathbf{6a}}&{}\approx{}&0.268370108047&{}:{}&0.243719427540&{}:{}&0.487910464413&,\\B^{\prime\prime\prime}_{\mathbf{6a}}&{}\approx{}&0.994918993176&{}:{}&-0.006211114771&{}:{}&0.011292121596&,\\C^{\prime\prime\prime}_{\mathbf{6a}}&{}\approx{}&1.005900455804&{}:{}&0.005702861783&{}:{}&-0.011603317587&,
\\
A^*_{\mathbf{6a}}&{}\approx{}&0.000000000000&{}:{}&1.195090322016&{}:{}&-0.195090322016&,\\B^*_{\mathbf{6a}}&{}\approx{}&0.980785280403&{}:{}&0.000000000000&{}:{}&0.019214719597&,\\C^*_{\mathbf{6a}}&{}\approx{}&1.136379290286&{}:{}&-0.136379290286&{}:{}&0.000000000000&.
\end{alignedat}
\]