set output 'curves_calib_a.ps' 
set term postscript color enhanced 'Helvetica,18'  
set style line 1 lt rgb 'red' lw 3  
set style line 2 lt rgb 'sea-green' lw 3  
set style line 3 lt rgb 'blue' lw 3  
set style line 4 lt rgb 'cyan' lw 3  
set style line 5 lt rgb 'violet' lw 3  
set grid 
set key bot right 
set ylabel 'Clear magnitude calibrated to V-band scale ' 
set xlabel 'Julian Date - 2,457,000' 
set title 'IY UMa field, pseudo-V mag, Apr 11, 2006 UT'
plot [837.548:837.61][1.3+13.45:-1.5+13.45] './apr11_instr_mags.dat' using ($1-2453000):(($2-$3)+13.45)  ls 1 pt 1 t 'A' , './apr11_instr_mags.dat' using ($1-2453000):(($3-$3)+13.45)ls 3 pt 2  t 'B', './apr11_instr_mags.dat' using ($1-2453000):(($4-$3)+13.45)ls 4 pt 2  t 'C', './apr11_instr_mags.dat' using ($1-2453000):(($5-$3)+13.45)ls 2 pt 2  t 'IY' 
set output 
quit 
