Closed ajmejia closed 6 months ago
There's still a remaining 3-5% systematic error when flatfielding twilight exposures using the master fiberflats created. This is shown in the following plot:
These systematic errors seem to be correlated with the mean count level as shown in this plot:
Where the colors mean the same as in the previous plot. We will fix this issue in a different PR.
This branch implements the full reduction sequence of the twilight sequence in the following way:
The reduction of the twillight sequence is run as follows:
drp twilight -e EXP1,EXP2,...,EXPN
or
drp twilight -e EXP1,EXPN
to expand exposure numbers into a list [EXP1,EXP2,...,EXPN]. You can also pass multiple exposure number ranges
drp twilight -e EXP1,EXPN -e EXP1,EXPM
See
drp twilight --help
for more optionsDuring the reduction of twilights some QA plots are produced, namely:
*twilight_continuum_fit
,*twilight_flatfielded
and*twilight_fiberflat_fit
; to show the iterative continuum fitting, the resulting flatfielded twilight and the fiberflat, respectively.