Header¶

The Header plugin provides a listing of the metadata associated with the image.

Plugin Type: Global

Header is a global plugin. Only one instance can be opened.

Usage

The Header plugin shows the FITS keyword metadata from the image. Initially only the Primary HDU metadata is shown. However, in conjunction with the MultiDim plugin, the metadata for other HDUs will be shown. See MultiDim for details.

If the “Sortable” checkbox has been checked in the lower left of the UI, then clicking on a column header will sort the table by values in that column, which may be useful for quickly locating a particular keyword.

It is customizable using ~/.ginga/plugin_Header.cfg, where ~ is your HOME directory:

#
# Header plugin preferences file
#
# Place this in file under ~/.ginga with the name "plugin_Header.cfg"

# Sort header
sortable = True

# If True, color every other row in alternating shades to improve
# readability of long tables
color_alternate_rows = True

# Maximum number of rows that will turn off auto column resizing (for speed)
max_rows_for_col_resize = 5000