use best_solution returned by the NoConvergence error to avoid recalculation
use best_solution returned by the NoConvergence error to avoid recalculation

lpsinger/astropy,saimn/astropy,lpsinger/astropy,saimn/astropy,larrybradley/astropy,lpsinger/astropy,pllim/astropy,astropy/astropy,mhvk/astropy,StuartLittlefair/astropy,larrybradley/astropy,mhvk/astropy,pllim/astropy,StuartLittlefair/astropy,pllim/astropy,mhvk/astropy,saimn/astropy,larrybradley/astropy,StuartLittlefair/astropy,astropy/astropy,pllim/astropy,mhvk/astropy,astropy/astropy,astropy/astropy,StuartLittlefair/astropy,astropy/astropy,lpsinger/astropy,lpsinger/astropy,pllim/astropy,larrybradley/astropy,mhvk/astropy,saimn/astropy,larrybradley/astropy,StuartLittlefair/astropy,saimn/astropy