function [iL1CA, iL1C, iL1E, iL2E, iL2C, iL5] = find_gps_ind( arr );
%[iL1CA, iL1C, iL1E, iL2E, iL2C, iL5] = find_gps_ind( arr );

iL1CA   = find( (arr(:,12)==0) & (arr(:,13)== 0) );
iL1C    = find( (arr(:,12)==0) & (arr(:,13)>=20) & (arr(:,13)<=25) );
iL1E    = find( (arr(:,12)==0) & (arr(:,13)==19) );
iL2E    = find( (arr(:,12)==1) & (arr(:,13)== 2) );
% CM+CL | CM
iL2C    = find( (arr(:,12)==1) & ((arr(:,13)== 5) | (arr(:,13) == 3)) );
iL5     = find( (arr(:,12)==2) & (arr(:,13)== 8) );

