I'm looking for the most recent, most accepted value for the temperature at which the photon first decoupled from the atoms during the Epoch of Recombination? That is, what was the temperature of the CMB at the moment it was made? (and a reference, please, if you have it)
EDIT: Is this calculation independent of cosmological model? I've seen versions that reference $\Omega_M$$\Omega_b$ and $h_{100}$ as well as versions of the Saha equation that only reference $z$.