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The analysis of flare start-times confirms the periods found years ago(Aschenbach et al., 2004) in the near-infrared and X-ray light-curves relatedto the Sgr A* black hole. The assignment of the frequencies found to radial andvertical epicyclic frequencies $\nu\sb{\rm r}$, $\nu\sb{\rm v}$, respectively,as well as to the Kepler orbital frequency $\nu\sb{\rm K}$ reveals resonancesof $\nu\sb{\rm v}$ / $\nu\sb{\rm r}$=7:2, and $\nu\sb{\rm K}$ / $\nu\sb{\rmv}$=3:1. The highest observed frequency of 10 mHz is identified as the Keplerfrequency corrected by the rotational frame-dragging frequency, as expectedfrom the Lense-Thirring effect. These frequency assignments conclude a blackhole mass of M = (4.10-4.34)$\times10\sp{6} M_\odot$ and a spin of a =(0.99473-0.99561).

Evidence for GR rotational frame-dragging in the light from the Sgr A* supermassive black hole