function [iL1CA, iL5] = find_sbas_ind( arr );
%[iL1CA, iL5] = find_sbas_ind( arr );

iL1CA   = find( (arr(:,12)==0) & (arr(:,13)== 0) );
iL5     = find( (arr(:,12)==2) & (arr(:,13)== 6) );

