Extracting time-dependent data from 2D axisymmetric plot

Hi all,

I created a 2D axisymmetric conjugate heat transfer model in 4.3a, and it's time dependent. It's a sphere being heated by moving fluid around its geometry. The output has the temperature graphic, which is great, but I want to extract the temperature in the center of the sphere over the time period I modeled. I'm having a difficult time figuring this one out. Ideally, I would want a plot with time on the x-axis, and temp on the y-axis.

I've been trying to do a point or cut of the area to extract data, but have so far been unsuccessful.

Mike