Specifications

26 AUTOSTAR CCD PHOTOMETRY
12. Repeat Steps 1 - 11 for the other filter images. A text log file
called ImageInfo.txt will be created.
3.4 ImageInfo File
The ImageInfo.txt file is a text file that is automatically created
when determining the magnitudes of the stars. Table 3-1 shows a
screen shot of a sample file.
Table 3-1. ImageInfo Log Text File Example.
The X and Y Center data helps identify which star the data applies
to. Regarding the rest of the data: the Magnitude, which is
relative to the Reference Magnitude, Flux, and Max are the data of
most interest. The FWHM (Full Width Half Maximum) number
gives an idea of the shape of the star image. If this gets too far
away from approximately 6, there may be a problem with the data.
The rest of the data may be of interest for determining the quality
of the data.