  The final state of $Au + Au$ collisions at sqrt{s}=130 AGeV at RHIC has been
reconstructed within the framework of the Buda-Lund hydro model, by performing
a simultaneous fit to preliminary PHENIX and STAR data on two-particle
Bose-Einstein correlations and identified single particle spectra. The Hubble
constant of the expanding final state of this heavy ion collision is determined
to be H = <u_t> = 0.77 +- 0.09.
