Image reduction template

1) Subtract dark
imarith IRAS03507.122.fits - dark60.fits IRAS03507.122d.fits
imarith IRAS03507.123.fits - dark60.fits IRAS03507.123d.fits
imarith IRAS03507.124.fits - dark60.fits IRAS03507.124d.fits
imarith IRAS03507.125.fits - dark60.fits IRAS03507.125d.fits
imarith IRAS03507.126.fits - dark60.fits IRAS03507.126d.fits
imarith IRAS03507.127.fits - dark60.fits IRAS03507.127d.fits
imarith IRAS03507.128.fits - dark60.fits IRAS03507.128d.fits
imarith IRAS03507.129.fits - dark60.fits IRAS03507.129d.fits
imarith IRAS03507.130.fits - dark60.fits IRAS03507.130d.fits

imstat IRAS03507.*d.fits >> awklist.txt

2) Scale images to same (mean = 12754.9 sky) value

imarith IRAS03507.122d.fits * 0.985086 IRAS03507.122a.fits
imarith IRAS03507.123d.fits * 0.994224 IRAS03507.123a.fits
imarith IRAS03507.124d.fits * 1.00424 IRAS03507.124a.fits
imarith IRAS03507.125d.fits * 0.99314 IRAS03507.125a.fits
imarith IRAS03507.126d.fits * 0.989365 IRAS03507.126a.fits
imarith IRAS03507.127d.fits * 0.994767 IRAS03507.127a.fits
imarith IRAS03507.128d.fits * 0.998974 IRAS03507.128a.fits
imarith IRAS03507.129d.fits * 1.01511 IRAS03507.129a.fits
imarith IRAS03507.130d.fits * 1.02647 IRAS03507.130a.fits

imstat IRAS03507*a.fits

3) Make skyflat (avg combine, min=0 max=2 reject)

epar imcomb
imcomb IRAS03507.*a.fits IRAS03507.sky3.fits

4) Normalize by midpt
imstat  IRAS03507.sky3.fits
imarith  IRAS03507.sky3.fits / 12758. IRAS03507.sky3N.fits

5) Divide by skyflat
imarith IRAS03507.122d.fits / IRAS03507.sky3N.fits IRAS03507.122df.fits
imarith IRAS03507.123d.fits / IRAS03507.sky3N.fits IRAS03507.123df.fits
imarith IRAS03507.124d.fits / IRAS03507.sky3N.fits IRAS03507.124df.fits
imarith IRAS03507.125d.fits / IRAS03507.sky3N.fits IRAS03507.125df.fits
imarith IRAS03507.126d.fits / IRAS03507.sky3N.fits IRAS03507.126df.fits
imarith IRAS03507.127d.fits / IRAS03507.sky3N.fits IRAS03507.127df.fits
imarith IRAS03507.128d.fits / IRAS03507.sky3N.fits IRAS03507.128df.fits
imarith IRAS03507.129d.fits / IRAS03507.sky3N.fits IRAS03507.129df.fits
imarith IRAS03507.130d.fits / IRAS03507.sky3N.fits IRAS03507.130df.fits

6) Subtract by constant (midpt)

imstat IRAS03507.*df.fits

imarith IRAS03507.122df.fits - 12973. IRAS03507.122dfs.fits
imarith IRAS03507.123df.fits - 12859. IRAS03507.123dfs.fits
imarith IRAS03507.124df.fits - 12727. IRAS03507.124dfs.fits
imarith IRAS03507.125df.fits - 12871. IRAS03507.125dfs.fits
imarith IRAS03507.126df.fits - 12923. IRAS03507.126dfs.fits
imarith IRAS03507.127df.fits - 12848. IRAS03507.127dfs.fits
imarith IRAS03507.128df.fits - 12798. IRAS03507.128dfs.fits
imarith IRAS03507.129df.fits - 12593. IRAS03507.129dfs.fits
imarith IRAS03507.130df.fits - 12454. IRAS03507.130dfs.fits

7) get coords and shifts
shifts:
445.90  588.60
444.90  484.48
445.71  689.93
340.54  589.62
547.42  588.74

0. 0.
1. 130.12
0.19 -129.33
129.36 -1.02
-129.52 -0.14

coords:
445.90  588.60
146.36  541.45 
687.55  901.60
767.40  176.58

!textedit coords.txt &
!textedit shifts.txt &

disp IRAS03507.122dfs.fits 1
disp IRAS03507.123dfs.fits 2
disp IRAS03507.124dfs.fits 3
disp IRAS03507.125dfs.fits 4
disp IRAS03507.126dfs.fits 1
disp IRAS03507.127dfs.fits 1
disp IRAS03507.128dfs.fits 1
disp IRAS03507.129dfs.fits 1
disp IRAS03507.130dfs.fits 1

ls IRAS03507*dfs.fits >> input.txt
ls IRAS03507*dfs.fits >> output.txt
!textedit input.txt &
!textedit output.txt &
imalign @input.txt IRAS03507.122dfs.fits coords.txt @output.txt
epar imcomb
imcomb IRAS03507.*S.fits IRAS03507.fin.fits
disp IRAS03507.fin.fits 1







             image - the image name
              npix - the number of pixels used to do the statistics
              mean - the mean of the pixel distribution
             midpt - estimate of the median of the pixel distribution
              mode - the mode of the pixel distribution
            stddev - the standard deviation of the pixel distribution
              skew - the skew of the pixel distribution
          kurtosis - the kurtosis of the pixel distribution
               min - the minimum pixel value
               max - the maximum pixel value


disp IRAS03507.130S.fits 1
disp IRAS03507.122S.fits 2
disp IRAS03507.123S.fits 3
disp IRAS03507.124S.fits 4
disp IRAS03507.125S.fits 1
disp IRAS03507236S.fits 2
disp IRAS03507.129S.fits 3
disp IRAS03507.130S.fits 4
disp IRAS03507.129S.fits 1