SourceCatalog

class gammapy.catalog.SourceCatalog(table, source_name_key='Source_Name', source_name_alias=())

Bases: object

Generic source catalog.

This class can be used directly, but it’s mostly used as a base class for the other source catalog classes.

This is a thin wrapper around Table, which is stored in the catalog.table attribute.

Parameters:

table : Table

Table with catalog data.

source_name_key : str

Column with source name information

source_name_alias : tuple of str

Columns with source name aliases. This will allow accessing the source row by alias names as well.

Attributes Summary

positions

Source positions (SkyCoord).

Methods Summary

copy()	Copy catalog
row_index(name)	Look up row index of source by name.
source_name(index)	Look up source name by row index.

Attributes Documentation

positions

Source positions (SkyCoord).

Methods Documentation

copy()

Copy catalog

row_index(name)

Look up row index of source by name.

Parameters:

name : str

Source name

Returns:

index : int

Row index of source in table

source_name(index)

Look up source name by row index.

Parameters:

index : int

Row index of source in table