In order to better understand the spherical harmonic math, I would like to build a temperature power spectrum chart from the temperature data. I want to be able to generate the $D_l$ data in the chart below:

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Where can I find the (latest, cleanest - no Milky Way, no bulk velocity, etc.) data in a form that I can use in Mathematica (e.g. $\theta$, $\phi$, Temperature)?


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