> 1.500225250000001W/m2!!!

Curious why you have so many significant digits?

> 0.6098603000000024W/m2

and here?

When I am working on lunar forcing for QBO, the precision is important, as I can easily detect a difference between a value of 27.21 days versus 27.212 days for the Draconic or nodal cycle. In particular, if this is aliased against an annual cycle, then the uncertainty is magnified so that the extra precision is easily justified.

But is keeping precision to the 15th place in the case of an energy density justified?