Over 50 DMSP auroral photographs of bright extended quiet arcs have been analyzed by the method of Holzworth and Meng (1975). An off center in corrected geomagnetic-MLT coordinates is found to be the best fit to these quiet arcs. Several different mathematical methods are used to verify that such an off-center circle fits the quiet auroral distribution within an accuracy of less than 0.5¿ in latitude.