function [MM] = exctractsep (M)

s = size (M);
n = s (1);

MM = [];

for i = 1 : n
    
    year = M (i,1);
    month = M (i,2);
    day = M (i,3);
    hour = M (i,4);
    
    var1 = M (i,5);
    var2 = M (i,6);
    
    if month == 9
        
        MM = [MM;year,month,day,hour,var1,var2];
        
    end 
    
end