set output '_v404cyg_5I_hw3_jun22.ps' 
set term postscript color 'Helvetica,18'  
set grid 
set key top right 
set ylabel 'Counts in aperture ' 
set xlabel 'Image index number ' 
set title '_v404cyg field, I 5-pix diff mag, 12-inch, 2015 Jun 22 UT'
plot [-5:75][0:35000] 'starD_multi.dat' using ($2):(10.0**(-0.4*($6-25)))   lt 1 pt 1 ps 1.5 lw 4 t 'D' , 'starV404_multi.dat' using ($2):(10.0**(-0.4*($6-25))) lt 2 pt 2 ps 1.5 lw 4 t 'V404', 'starF_multi.dat' using ($2):(10**(-0.4*($6-25))) lt 3 pt 3 ps 1.5  lw 4 t 'F' 
set output 
quit 
