The fieldstat structure holds a short summary of information on a field-by-field basis. The output file has a name like
fieldstat-run-ccdcol-field.fit
This is a FITS binary table, containing one row. The row holds a number of columns. The following are contained once:
and then, for each passband, there are individual entries for:
A typical size for this file is about 12 kB, mostly due to the inefficiency of the FITS standard.
The binned image file contains a 4x4 binned image of the corrected frame. Its filename is something like
BIN-run-ccdcol-filter-field.fit
XXX describe binning, and super pixels in atlas images
This is a 16-bit integer FITS image. The "sky" value should be set to the value of the soft_bias parameter, which as 1,000 at the time of writing.
A typical size for this file is 380 kB.
The mask file contains a
SPANMASK of the
corrected frame, showing pixels which belong to objects, pixels
which have been saturated, etc. Its filename is something like
M-run-ccdcol-filter-field.fit
A typical size for this file is ??? MB.
The corrected image contains the full representation of a corrected frame. Its filename is something like
C-run-ccdcol-filter-field.fit
This file is a 16-bit integer FITS image.
A typical size for this file is 11.9 MB.
See the separate section
Measured Object Parameters.
The rows in this file are identical to those in the atlas image file,
and the id number of the object is equal to its row number.
Files of this type can range in size quite a lot.