

UVES pipeline:
cosmic ray mask table


The cosmic ray mask created by the UVES pipeline in the course of optimal extraction.
For each column on the raw, properly oriented frame, a PSF is fitted which rejects
any nonGaussian artefacts (e.g. cosmic ray hits). This holds the coordinates
and flux values of the rejected pixels. Coordinates are in orderbinl space,
i.e. X coordinate refers to original (raw) frame pixel value, Y coordinate refers
to slit coordinate.
This table may be useful, in cases of long exposure times, to assess the quality
of the extraction and analyze the result spectrum.
The table has the following columns:
column name 
parameter 
content 
ORDER 
order number 
counting from 1 to N where N is the maximum number 
X 
X coordinate 
X coordinate of identified hit 
Y 
y position 
Y position (slit coordinate, orderbin space) of
identified hit 

FLUX 
signal 
flux value of identified hit 
