Determining $G_E^s$ and $G_M^s$ from parity violating asymmetry measurements at $Q^2= 0.23$, $0.63$ GeV$^2$

The G$^0$ experiment recently utilized the high luminosity polarized electron beam at Jefferson Lab to measure parity-violating asymmetries in backward scattered electrons from cryogenic hydrogen and deuterium targets at momentum transfers, $Q^2$, of $0.23$ and $0.63$ GeV$^2$. These asymmetries, arising from the interference of the electromagnetic and neutral weak interactions, are only a few tens of parts-per-million. A dedicated toriodal superconducting magnetic spectrometer, and fast counting electronics provided the required particle identification and measurement precision. These data together with previous results, including the G$^0$ forward angle measurement [1], allow the determination of the strange electric and magnetic nucleon form factors, $G_E^s$ and $G_M^s$ at the respective $Q^2$ values. The current status of our analysis to determine these values will be presented. {\linebreak} [1]D.S. Armstrong et al. (G0), {\it Phys. Rev. Lett.} {\bf 95}, 092001 (2005).