Flat field creation procedure
1. Creation of flat field
- collect frames with constant mount position ( no tracking ) best
in flat mode ( dittering mode )
- put fitc files into directory create list file, I assume that
dark frame file is dark1.fitc and list file is fitc_list
- execute flatmaker program with the following options :
flatmaker2 fitc_list
flat1.fit -dark=dark1.fitc
Name of created flat field file will be flat1.fit , for more sophisticated
options check here
By default frame (24,8,8,8) is ignored - this is due to our currect
Fairchild chip properties.
- Note: each frame is ~8.5 MB this gives 100 frames = 100 *
8.5 MB = 850 MB -> 200 frames ~= 1.6 GB
in case there is >>200 frames you can prepare fitc_list by taking
every second or third frame with usage of script :
- Testowalem ostatnio na smok(heplx45) /data2/results/tmp/FLAT -
calkiem przyzwoicie zadzialala